Downhole debris detection method and device, electronic device, medium and logging instrument

Abstract

The present disclosure relates to a downhole drop object detection method and device, electronic equipment, medium and logging instrument, and relates to the technical field of logging engineering. The method comprises: acquiring a plurality of detection signals corresponding to a plurality of set directions collected by a plurality of first detection mechanisms arranged at one end of a drop object detection main body during movement of the drop object detection main body downward; determining whether a fishing instrument to be fished is detected by using the plurality of detection signals; if the fishing instrument to be fished is detected, determining a direction of the fishing instrument to be fished by using the plurality of detection signals corresponding to the plurality of set directions, and continuing to control the drop object detection main body to move downward; and during the continuous downward movement, determining a distance of passing through the fishing instrument to be fished by using the plurality of first detection mechanisms and a second detection mechanism arranged on the drop object detection main body. The embodiment of the present disclosure can realize downhole drop object detection.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of well logging engineering, and particularly relates to a downhole drop object detection method and device, an electronic device, a medium and a well logging instrument. BACKGROUND

[0002] Fishing well logging instruments is a complex and critical task, because during the measurement process, the instrument is prone to be blocked or stuck due to well conditions or operation, thereby affecting the entire well logging process. Determining the fishing position and state is one of the most critical and difficult links in the fishing process.

[0003] For through-the-hole fishing, since the cable and the downhole instrument still maintain effective connection, we can receive the signal of the downhole instrument. By analyzing the signal uploaded by the instrument and the well logging curve before the sticking, we can determine and calculate the position of the downhole instrument without performing a separate fishing operation.

[0004] When the well logging instrument falls into the well and the cable is disconnected from the downhole instrument, we need to use a different method to fish. Since the shell and joint part of the well logging instrument are made of metal, we can use a soft electrode to fish downhole. The measurement principle of this method is that when the electrode contacts the fallen instrument, the electrode curve will immediately return to zero, thereby accurately detecting the position of the downhole instrument. In addition to the soft electrode, we can also use a magnetic positioning instrument to fish. The measurement principle of this method is that when a metal is encountered, the magnetic positioning instrument will generate a potential difference, forming a characteristic curve.

[0005] When the soft electrode, magnetic positioning instrument and other methods cannot successfully fish, we can try to use sound waves, lateral, radioactivity and other well logging instruments to fish. By utilizing the unique curve response of the well logging instrument to the downhole instrument, we can detect the position of the downhole instrument. However, this method needs to be used with caution when the downhole conditions are complex. In some cases, the fallen instrument carries a radioactive source and is located near the fish head, we can use a gamma logging instrument to fish. When the distance between the instrument and the radioactive source is within a few meters, the gamma curve will have a characteristic response, thereby helping us to determine the position of the downhole instrument.

[0006] In addition to the traditional fishing methods, there are also some advanced ways, such as instruments using magnetic flux gate and ultrasonic wave principles. However, these methods have certain limitations.

[0007] When the logging crew performs electrode and magnetic positioning downhole fishing operations, they may face the following problems:

[0008] 1. Unable to measure the bottom: Since the measurement point of the magnetic positioning and electrode logging instrument is located in the middle of the instrument, it cannot directly measure the bottom, so it cannot determine whether the blockage is caused by the instrument itself or by mud sand.

[0009] 2. Outer diameter size limitation: due to the outer diameter size of the instrument, it cannot pass through the top of the instrument smoothly, nor can it fish smoothly. After forming a misalignment with the instrument to be fished, due to the measurement point, there will be a certain distance between the instrument measurement point and the fish top, and the instrument diameter will affect the measurement effect.

[0010] 3. Delay phenomenon: there is a certain reaction time delay in judging whether resistance is encountered through the logging curve. In the fishing process, time saving is particularly important, otherwise it will increase the risk of accidents.

[0011] 4. Increase in instrument length: due to the series connection of the electrode and the magnetic positioning instrument, the total length of the instrument is increased, thereby increasing the risk of measurement.

[0012] The above are some key links and problems that may be encountered in the fishing process of the logging instrument. In actual operation, we need to fully consider these factors to ensure the smooth progress of the fishing task. SUMMARY

[0013] The present disclosure proposes a downhole drop object detection method and device, electronic equipment, medium and logging instrument technical solutions.

[0014] According to an aspect of the present disclosure, a downhole drop object detection method is provided, comprising:

[0015] acquiring a plurality of detection signals corresponding to a plurality of set directions collected by a plurality of first detection mechanisms arranged at one end of the drop object detection main body during the movement of the drop object detection main body downward;

[0016] determining whether the instrument to be fished is detected using the plurality of detection signals;

[0017] If the instrument to be fished is detected, the direction of the instrument to be fished is determined using the plurality of detection signals corresponding to the plurality of set directions, and the movement of the drop object detection main body downward is continued;

[0018] During the continued movement downward, the distance through the instrument to be fished is determined using the plurality of first detection mechanisms and the second detection mechanism arranged on the drop object detection main body.

[0019] Preferably, the detection method further comprises: if the instrument to be fished is not detected and the resistance detection mechanism installed at one end of the drop object detection main body detects resistance, it is determined that it is not the instrument to be fished that encounters resistance;

[0020] When the non-instrument-to-be-fished resistance occurs, the vibrator arranged on or in the drop object detection main body is started;

[0021] After the vibrator vibrates for a preset time, continue to control the falling object detection main body to move downward; during the process of continuing to control the falling object detection main body to move downward after the preset time, continue to determine whether the fishing instrument to be fished is detected by using the plurality of detection signals;

[0022] If the fishing instrument to be fished is detected, determine the direction of the fishing instrument to be fished by using the plurality of detection signals corresponding to the plurality of set directions, and continue to control the falling object detection main body to move downward; during the process of continuing to move downward, determine the distance of passing through the fishing instrument to be fished by using the plurality of first detection mechanisms and the second detection mechanism arranged on the falling object detection main body;

[0023] Otherwise, when the resistance detection mechanism arranged at one end of the falling object detection main body continues to detect resistance and the fishing instrument to be fished is not detected, drive the third detection mechanism arranged inside or outside the falling object detection main body to extend out of the falling object detection main body, and determine whether the fishing instrument to be fished is detected by using the extended third detection mechanism; and / or,

[0024] The method for determining whether the fishing instrument to be fished is detected by using the extended third detection mechanism comprises:

[0025] If the detection signal collected by the third detection mechanism changes to a set value, it is determined that the fishing instrument to be fished is detected; otherwise, it is determined that the fishing instrument to be fished is not detected; and / or,

[0026] Further comprising: after determining that the fishing instrument to be fished is detected by using the extended third detection mechanism, determining the thickness of the resistance object corresponding to the upper side of the fishing instrument to be fished by using the extended third detection mechanism; and eliminating the resistance object according to the thickness of the resistance object; and / or,

[0027] The method for eliminating the resistance object according to the thickness of the resistance object comprises:

[0028] If the thickness of the resistance object is less than or equal to a set thickness, the resistance object is eliminated by using a resistance object impact scheme;

[0029] Otherwise, the resistance object is eliminated by using a circulating sand discharge scheme to discharge the resistance object from the well downward to the outside of the well; and / or,

[0030] The method for driving the third detection mechanism arranged inside or outside the falling object detection main body to extend out of the falling object detection main body comprises:

[0031] Controlling the driving mechanism connected with the third detection mechanism to act, thereby driving the third detection mechanism arranged inside or outside the falling object detection main body to extend out of the falling object detection main body.

[0032] Preferably, the method for determining whether the fishing target instrument is detected by using the plurality of detection signals comprises:

[0033] If one or more of the plurality of detection signals changes to a set value, the fishing target instrument is detected; otherwise, the fishing target instrument is not detected; and / or,

[0034] The method for determining whether the fishing target instrument is detected by using the plurality of detection signals further comprises:

[0035] If one or more of the plurality of detection signals changes to a set value, and the resistance detection mechanism installed at one end of the falling object detection main body detects resistance, the fishing target instrument is detected; otherwise, the fishing target instrument is not detected; and / or,

[0036] The method for determining the direction of the fishing target instrument by using the plurality of detection signals corresponding to the plurality of set directions if the fishing target instrument is detected comprises:

[0037] If one or more of the plurality of detection signals corresponding to the plurality of set directions changes to a set value, the position of the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body is obtained, and the position is configured as the direction of the fishing target instrument; and / or,

[0038] The method for determining the direction of the fishing target instrument by using the plurality of detection signals corresponding to the plurality of set directions if the fishing target instrument is detected further comprises:

[0039] If, in addition to the one or more detection signals changing to a set value, the other detection signals of the plurality of detection signals corresponding to the plurality of set directions change by less than a set change value, the position of the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body is obtained, and the position is configured as the direction of the fishing target instrument; and / or,

[0040] Further comprising: determining the effective distance of the fisher to fish the fishing target instrument according to the distance of the fisher passing through the fishing target instrument; and / or,

[0041] The plurality of detection signals collected by the plurality of first detection mechanisms and / or the detection signals collected by the second detection mechanism and / or the detection signals collected by the third detection mechanism are configured as resistivity; and / or,

[0042] The multiple detection signals collected by the multiple first detection mechanisms and / or the detection signal collected by the second detection mechanism and / or the detection signal collected by the third detection mechanism are configured as detection signals corresponding to the radial direction of the falling object detection main body; and / or,

[0043] The method for determining the distance of passing through the fishing instrument by using the multiple first detection mechanisms and the second detection mechanism arranged on the falling object detection main body comprises: calculating the physical distance between the multiple first detection mechanisms and the second detection mechanism on the falling object detection main body.

[0044] According to an aspect of the present disclosure, a downhole falling object detection device is provided, comprising:

[0045] The acquisition unit is configured to acquire multiple detection signals corresponding to multiple preset directions collected by multiple first detection mechanisms arranged at one end of the falling object detection main body during the movement of the falling object detection main body downwards.

[0046] The detection determination unit is configured to determine whether the fishing instrument is detected by using the multiple detection signals.

[0047] The azimuth determination and control unit is configured to determine the azimuth of the fishing instrument by using the multiple detection signals corresponding to the multiple preset directions if the fishing instrument is detected, and continue to control the movement of the falling object detection main body downwards.

[0048] The passing distance determination unit is configured to determine the distance of passing through the fishing instrument by using the multiple first detection mechanisms and the second detection mechanism arranged on the falling object detection main body during the continuous movement of the falling object detection main body downwards.

[0049] Preferably, the detection device further comprises a non-fishing instrument resistance determination unit.

[0050] The non-fishing instrument resistance determination unit is configured to determine that it is a non-fishing instrument resistance if the fishing instrument is not detected and the resistance detection mechanism installed at one end of the falling object detection main body detects resistance.

[0051] The starting unit is configured to start the vibrator arranged on or in the falling object detection main body when the non-fishing instrument resistance occurs.

[0052] The control unit is configured to continue to control the movement of the falling object detection main body downwards after the vibrator vibrates for a preset time.

[0053] The detection determination unit is further configured to continue to determine whether the fishing instrument is detected by using the multiple detection signals during the continuous movement of the falling object detection main body downwards after the preset time.

[0054] The orientation determining and control unit is configured to determine the orientation of the fishing target instrument by using the detection signals corresponding to the set orientations, and continue to control the drop object detection main body to move downward if the fishing target instrument is detected.

[0055] The crossing distance determining unit is configured to determine the distance of crossing the fishing target instrument by using the first detection mechanisms and the second detection mechanism arranged on the drop object detection main body during the continuous moving downward.

[0056] Otherwise, the control unit is further configured to drive the third detection mechanism arranged inside or outside the drop object detection main body to extend out of the drop object detection main body by using the extended third detection mechanism to determine whether the fishing target instrument is detected when the fishing target instrument is not detected and the resistance detection mechanism arranged at one end of the drop object detection main body continues to detect resistance; and / or,

[0057] The detection determining unit comprises a first comparison unit.

[0058] The first comparison unit is configured to determine that the fishing target instrument is detected if the detection signal collected by the third detection mechanism changes to a set value, and determine that the fishing target instrument is not detected otherwise; and / or,

[0059] Further comprising a resistance object thickness eliminating unit.

[0060] The resistance object thickness eliminating unit is configured to determine the thickness of the resistance object corresponding to the fishing target instrument by using the extended third detection mechanism after determining that the fishing target instrument is detected by using the extended third detection mechanism, and eliminate the resistance object according to the thickness of the resistance object; and / or,

[0061] The resistance object thickness eliminating unit comprises a scheme selection unit.

[0062] The scheme selection unit is configured to eliminate the resistance object by using a resistance object impact scheme if the thickness of the resistance object is less than or equal to a set thickness, and eliminate the resistance object by using a circulating sand discharge scheme to discharge the resistance object from the well to the outside of the well otherwise; and / or,

[0063] The control unit comprises a first control unit and a second control unit.

[0064] The first control unit is configured to control the driving mechanism connected with the third detection mechanism to act.

[0065] Further, the second control unit is configured to drive the third detection mechanism arranged inside or outside the drop object detection main body to extend out of the drop object detection main body.

[0066] Preferably, the detection determination unit comprises a second comparison unit;

[0067] The second comparison unit is configured to detect the fishing instrument if one or more of the plurality of detection signals changes to a set value, and otherwise not to detect the fishing instrument; and / or,

[0068] The detection determination unit further comprises a resistance detection unit.

[0069] The second comparison unit is configured to detect the fishing instrument if one or more of the plurality of detection signals changes to a set value, and the resistance detection unit is configured to detect resistance by using a resistance detection mechanism installed at one end of the falling object detection main body, and otherwise not to detect the fishing instrument; and / or,

[0070] The orientation determination unit comprises a third comparison unit and a configuration unit.

[0071] The third comparison unit is configured to obtain, by the configuration unit, a position of a first detection mechanism corresponding to the one or more detection signals in the falling object detection main body if one or more of the plurality of detection signals corresponding to the plurality of set directions changes to a set value, and to configure the position as an orientation of the fishing instrument; and / or,

[0072] The orientation determination unit further comprises a fourth comparison unit.

[0073] The fourth comparison unit is configured to obtain, by the configuration unit, a position of a first detection mechanism corresponding to the one or more detection signals in the falling object detection main body if, in addition to the one or more detection signals changing to a set value, other detection signals of the plurality of detection signals corresponding to the plurality of set directions change by less than a set change value, and to configure the position as an orientation of the fishing instrument; and / or,

[0074] Further comprising a fishing instrument effective distance determination unit.

[0075] The fishing instrument effective distance determination unit is configured to determine an effective distance of a fishing instrument for fishing the fishing instrument according to a distance of passing through the fishing instrument; and / or,

[0076] Further comprising a detection signal configuration unit.

[0077] The detection signal configuration unit is configured to configure a plurality of detection signals collected by the plurality of first detection mechanisms and / or a detection signal collected by the second detection mechanism and / or a detection signal collected by the third detection mechanism as resistivity; and / or,

[0078] The detection signal direction setting unit is configured to set the detection signals corresponding to the radial direction of the falling object detection main body.

[0079] The detection signal direction setting unit is configured to set the detection signals corresponding to the radial direction of the falling object detection main body.

[0080] The crossing distance determination unit comprises a calculation unit.

[0081] The calculation unit is configured to calculate the physical distance between the first detection mechanism and the second detection mechanism on the falling object detection main body.

[0082] According to an aspect of the present disclosure, an electronic device is provided, comprising:

[0083] a processor;

[0084] a memory for storing processor-executable instructions;

[0085] The processor is configured to execute the above-mentioned downhole falling object detection method.

[0086] According to an aspect of the present disclosure, a computer-readable storage medium is provided, which stores computer program instructions, and the computer program instructions are executed by a processor to implement the above-mentioned downhole falling object detection method.

[0087] According to an aspect of the present disclosure, a logging instrument is provided, which applies the above-mentioned downhole falling object detection method; and / or, comprises or applies the above-mentioned downhole falling object detection device; and / or, comprises or applies the above-mentioned electronic device; and / or, comprises or applies the above-mentioned computer-readable storage medium.

[0088] Preferably, a plurality of first detection mechanisms are arranged at one end of the falling object detection main body, and a second detection mechanism is arranged on the falling object detection main body.

[0089] The plurality of detection signals corresponding to the plurality of set directions are acquired by using the plurality of first detection mechanisms when the falling object detection main body moves downward.

[0090] The plurality of detection signals are used to determine whether the fishing target instrument is detected.

[0091] If the fishing target instrument is detected, the direction of the fishing target instrument is determined by using the plurality of detection signals corresponding to the plurality of set directions, and the falling object detection main body continues to move downward.

[0092] During the continuing moving downhole, the distance of crossing the fishing instrument is determined by the first plurality of detecting mechanisms and the second detecting mechanism arranged on the falling object detecting main body; and / or,

[0093] The first plurality of detecting mechanisms are configured as measurement array electrodes, the measurement array electrodes comprising: a plurality of measurement electrodes; the measurement electrodes are arranged on the outside of the falling object detecting main body according to a plurality of set directions, for collecting a plurality of detection signals corresponding to the plurality of set directions; and / or,

[0094] The second detecting mechanism is configured as a measurement electrode ring and / or a magnetic positioning short circuit arranged on the falling object detecting main body;

[0095] During the continuing moving downhole, the distance of crossing the fishing instrument is determined by the first plurality of detecting mechanisms and the measurement electrode ring and / or the magnetic positioning short circuit arranged on the falling object detecting main body; and / or,

[0096] A driving mechanism is arranged on the inside or outside of the falling object detecting main body, and the driving mechanism is connected with the third detecting mechanism;

[0097] When the fishing instrument is not detected and the resistance detecting mechanism installed on one end of the falling object detecting main body continues to detect resistance, the third detecting mechanism installed on the inside or outside of the falling object detecting main body is driven to extend out of the falling object detecting main body, and whether the fishing instrument is detected is determined by the extended third detecting mechanism; wherein the resistance detecting mechanism is on the same side as the first plurality of detecting mechanisms; and / or,

[0098] The driving mechanism connected with the third detecting mechanism comprises: a driving screw arranged on the inside or outside of the falling object detecting main body, and a transmission screw connected with the driving screw;

[0099] The transmission screw drives the movement of the driving screw, and in turn drives the third detecting mechanism connected with the driving screw to extend out of the falling object detecting main body; and / or,

[0100] The third detecting mechanism and the driving mechanism connected with the third detecting mechanism are arranged in a cavity in the falling object detecting main body; and / or,

[0101] The third detecting mechanism is configured as a probe electrode; and / or,

[0102] A vibrator is arranged on or in the falling object detecting main body, and when the resistance detecting mechanism installed on one end of the falling object detecting main body detects resistance of the non-fishing instrument, the vibrator arranged on or in the falling object detecting main body is started;

[0103] continue to control the drop detection main body to move downward after the preset time; continue to control the drop detection main body to move downward after the preset time, and continue to determine whether the instrument to be fished is detected by using the plurality of detection signals; and / or

[0104] The drop detection main body comprises a sheath and an insulating nipple connected with the sheath and smaller than the sheath; and / or

[0105] The sheath is connected with the insulating nipple, and an insulating ring is arranged at the connection position of the sheath and the insulating nipple; and / or

[0106] The insulating nipple comprises an insulating shell and the plurality of first detection mechanisms and / or the second detection mechanisms and / or the resistance detection mechanism arranged outside the insulating shell.

[0107] In the embodiments of the present disclosure, a downhole drop detection method and device, an electronic device, a medium and a logging instrument technical solution are provided, which make up for the shortcomings of the prior art and provide sufficient support data for fishing operation engineers to solve the problem that the position of the instrument to be fished cannot be detected and the distance through the instrument to be fished cannot be detected.

[0108] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the present disclosure.

[0109] Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0110] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present disclosure and serve to explain the technical solutions of the present disclosure together with the specification.

[0111] Figure 1 A flow chart of a downhole drop detection method according to an embodiment of the present disclosure is shown;

[0112] Figure 2 A block diagram of a downhole drop detection device according to an embodiment of the present disclosure is shown;

[0113] Figure 3 A block diagram of an electronic device 800 according to an exemplary embodiment is shown;

[0114] Figure 4 A block diagram of an electronic device 1900 according to an exemplary embodiment is shown;

[0115] Figure 5 A semi-mechanical schematic diagram of a logging instrument for downhole drop detection according to an embodiment of the present disclosure is shown;

[0116] Figure 6 Fig. 3 shows a schematic diagram of a stereoscopic structure of a logging instrument for downhole drop detection according to an embodiment of the present disclosure (a third detection mechanism extends from the inside or outside of the drop detection main body to the drop detection main body);

[0117] Figure 7 Fig. 4 shows a schematic diagram of a full profile mechanical diagram of a logging instrument for downhole drop detection according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0118] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent the same elements or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0119] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0120] The term "and / or", used in the present document, merely describes association relationships of associated objects, and means that three relationships can exist, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the term "at least one" in the present document means any one of multiple or any combination of at least two of multiple, for example, at least one of A, B, and C can mean any one or more elements selected from a set composed of A, B, and C.

[0121] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the specific embodiments below. Those skilled in the art should understand that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, elements, and circuits that are well known to those skilled in the art are not described in detail in order to highlight the main idea of the present disclosure.

[0122] It can be understood that the above-mentioned various method embodiments of the present disclosure can be combined with each other to form combined embodiments without deviating from the principle logic. Due to the limited length, the present disclosure will not be described again.

[0123] In addition, the present disclosure also provides an image processing device, an electronic device, a computer readable storage medium, and a program, all of which can be used to implement any one of the image processing methods provided by the present disclosure. The corresponding technical solutions and descriptions are described in the method section and are not described again.

[0124] Figure 1 Fig. 5 shows a flowchart of a downhole drop detection method according to an embodiment of the present disclosure.Figure 5 A half-section mechanical schematic diagram of a logging instrument for downhole object detection according to an embodiment of the present disclosure is shown; Figure 6 A three-dimensional structural diagram of a logging instrument for downhole object detection according to an embodiment of the present disclosure is shown (a third detection mechanism extends from the inside or outside of the object detection body); Figure 7 A full-profile mechanical schematic diagram of a logging instrument for downhole object detection according to an embodiment of this disclosure is shown. Figure 1 As shown, and in combination Figures 5-7 The downhole object detection method includes the following steps: Step S101: Acquiring multiple detection signals corresponding to multiple predetermined directions collected by multiple first detection mechanisms located at one end of the object detection body as it moves downhole; Step S102: Determining whether the object to be retrieved has been detected using the multiple detection signals; Step S103: If the object to be retrieved is detected, determining the location of the object using the multiple detection signals corresponding to the multiple predetermined directions, and continuing to control the object detection body to move downhole; Step S104: During the continued movement downhole, determining the distance to traverse the object using the multiple first detection mechanisms and a second detection mechanism located on the object detection body. This method overcomes the shortcomings of existing technologies and provides sufficient supporting data for retrieval engineers, solving the problems of not being able to detect the location of the object to be retrieved and the distance to traverse the object.

[0125] Step S101: Acquire multiple detection signals corresponding to multiple set directions collected by multiple first detection mechanisms set at one end of the object detection body as it moves down into the well.

[0126] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure or select the plurality of first detection mechanisms disposed at one end of the falling object detection body. For example, the plurality of first detection mechanisms disposed at one end of the falling object detection body can be configured as follows: Figures 5-7 The measuring array electrode 11 shown can also be configured as multiple magnetic positioning mechanisms or other detection mechanisms capable of detecting the instrument to be retrieved. Specifically, when the multiple first detection mechanisms at one end of the object detection body are configured as... Figures 5-7 When the measurement array electrode 11 is shown, the multiple detection signals collected by the multiple first detection mechanisms are configured as resistivity; and when the multiple first detection mechanisms are configured with multiple magnetic positioning mechanisms (e.g., coils or Hall elements) at one end of the falling object detection body, the multiple detection signals collected by the multiple first detection mechanisms are configured as corresponding induced electromotive forces.

[0127] In the embodiments of this disclosure and other possible embodiments, a plurality of first detection mechanisms are installed at equal or non-equal intervals at one end of the falling object detection body. For example, the number of the plurality of first detection mechanisms is configured to be four, in which case the four first detection mechanisms are installed at equal intervals and evenly distributed at one end of the falling object detection body. Those skilled in the art can configure the number of the plurality of first detection mechanisms or select equal or non-equal intervals as needed.

[0128] Furthermore, in the embodiments of this disclosure and other possible embodiments, a plurality of first detection mechanisms are installed at equal intervals and uniformly arranged radially on the outer side of the falling object detection body. In this case, the plurality of detection signals collected by the plurality of first detection mechanisms are detection signals corresponding to the radial direction perpendicular to the outer side of the falling object detection body.

[0129] In the embodiments of this disclosure and other possible embodiments, the gating switching circuit connected to the plurality of first detection mechanisms starts to work, switching the power supply once every second, so that the plurality of first detection mechanisms are powered sequentially, forming a periodic surround power supply.

[0130] Step S102: Use the multiple detection signals to determine whether the instrument to be salvaged has been detected.

[0131] In embodiments of this disclosure, the method for determining whether an instrument to be salvaged is detected using the plurality of detection signals includes: if one or more of the plurality of detection signals change to a set value, then the instrument to be salvaged is detected; otherwise, the instrument to be salvaged is not detected.

[0132] In the embodiments of this disclosure and other possible embodiments, when one or more of the plurality of first detection mechanisms detect the instrument to be retrieved, the detection signal corresponding to the one or more detection mechanisms changes to a set value. Those skilled in the art can configure or select the set value. For example, when the plurality of first detection mechanisms at one end of the falling object detection body are configured as follows: Figures 5-7 When the measuring array electrode 11 is shown, the multiple detection signals collected by the multiple first detection mechanisms are configured as resistivity. When one or more measuring electrodes in the measuring array electrode 11 detect the instrument to be retrieved, the resistivity corresponding to the one or more measuring electrodes changes to a set value of 0. Alternatively, when the multiple first detection mechanisms at one end of the falling object detection body are configured as magnetic positioning mechanisms, the multiple detection signals collected by the multiple magnetic positioning mechanisms are configured as induced electromotive force. When one or more magnetic positioning mechanisms detect the instrument to be retrieved, the induced electromotive force corresponding to the one or more magnetic positioning mechanisms changes to a set value (the set value corresponding to the induced electromotive force).

[0133] In the embodiments of the present disclosure, the method for determining whether the fishing target is detected by using the plurality of detection signals further comprises: if one or more of the plurality of detection signals changes to a set value and the resistance detection mechanism installed at one end of the falling object detection main body detects resistance, the fishing target is detected; otherwise, the fishing target is not detected.

[0134] In the embodiments of the present disclosure and other possible embodiments, as shown in Figures 5-7 The resistance detection mechanism 6 is further arranged at one end of the falling object detection main body. More specifically, the resistance detection mechanism 6 is arranged at an axial position of one end of the falling object detection main body, or the resistance detection mechanism 6 is arranged outside one end of the falling object detection main body between the plurality of first detection mechanisms.

[0135] In the embodiments of the present disclosure and other possible embodiments, the resistance detection mechanism 6 can be configured as a pressure touch sensor or a touch switch, which is actuated when the falling object detection main body encounters resistance during the movement of the falling object detection main body downward. For example, the pressure touch sensor or the touch switch is actuated when the pressure touch sensor or the touch switch detects resistance (encounters the fishing target or silt, etc.), at which time the pressure touch sensor generates a pressure signal or the touch switch is actuated.

[0136] Step S103: If the fishing target is detected, the direction of the fishing target is determined by using the plurality of detection signals corresponding to the plurality of set directions, and the movement of the falling object detection main body downward is continued.

[0137] In the embodiments of the present disclosure, the method for determining the direction of the fishing target by using the plurality of detection signals corresponding to the plurality of set directions if the fishing target is detected comprises: if one or more of the plurality of detection signals corresponding to the plurality of set directions changes to a set value, the position of the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body is obtained, and the position is configured as the direction of the fishing target.

[0138] For example, the number of the plurality of first detection mechanisms is configured as four, and the positions of the four first detection mechanisms in the falling object detection main body have been recorded in advance. If the detection signals corresponding to two of the four first detection mechanisms change to a set value, the positions of the first detection mechanisms corresponding to the two first detection mechanisms in the falling object detection main body are obtained, and the positions are configured as the direction of the fishing target.

[0139] In the embodiments of the present disclosure, if the fishing target instrument is detected, the method for determining the position of the fishing target instrument by using the detection signals corresponding to the plurality of set directions further comprises: if the change values of the detection signals corresponding to the plurality of set directions except the one or more detection signals changing to the set value are less than the set change value, obtaining the positions of the first detection mechanisms corresponding to the one or more detection signals in the drop object detection main body, and configuring the positions as the position of the fishing target instrument. The set change value can be configured by those skilled in the art. For example, the set change value can be configured as 0.1.

[0140] For example, the number of the plurality of first detection mechanisms is configured as 4, and the positions of the 4 first detection mechanisms in the drop object detection main body have been recorded in advance. When the detection signals corresponding to 2 first detection mechanisms change to the set value, and the change values of the detection signals corresponding to the other 2 first detection mechanisms in other positions are less than the set change value, the positions of the first detection mechanisms corresponding to the 2 first detection mechanisms whose detection signals change to the set value in the drop object detection main body are obtained, and the positions are configured as the position of the fishing target instrument.

[0141] Step S104: determining the distance of passing through the fishing target instrument by using the plurality of first detection mechanisms and the second detection mechanism arranged on the drop object detection main body during the process of continuously moving downward.

[0142] In the embodiments of the present disclosure, the method for determining the distance of passing through the fishing target instrument by using the plurality of first detection mechanisms and the second detection mechanism arranged on the drop object detection main body comprises: calculating the physical distance between the plurality of first detection mechanisms and the second detection mechanism on the drop object detection main body.

[0143] In the embodiments of the present disclosure and other possible embodiments, as shown in Figures 5-7 The second detection mechanism is configured as a measurement electrode ring 9 and / or a magnetic positioning short circuit 10 arranged on the drop object detection main body. During the process of continuously moving downward, the distance of passing through the fishing target instrument is determined by using the plurality of first detection mechanisms and the measurement electrode ring 9 and / or the magnetic positioning short circuit 10 arranged on the drop object detection main body.

[0144] In the embodiments of the present disclosure and other possible embodiments, when the second detection mechanism is configured as Figures 5-7 the measurement electrode ring 9 as shown in the drawings, the detection signals collected by the plurality of second detection mechanisms are configured as resistivity. When the second detection mechanism is configured as the magnetic positioning short circuit 10, the detection signals collected by the second detection mechanism are configured as corresponding induced electromotive force.

[0145] In the embodiments of the present disclosure, the distance of passing through the fishing instrument is determined according to the distance of the fishing instrument exposed to the sand.

[0146] In the embodiments and other possible embodiments of the present disclosure, after the detection of the fishing instrument in the well is completed, the fishing instrument needs to be fished. In order to achieve effective fishing of the fishing instrument, the position of the fishing tool grabbing or sleeving the fishing instrument needs to be determined. Therefore, the effective distance of the fishing tool fishing the fishing instrument can be determined according to the distance of passing through the fishing instrument, that is, the fishing tool grabs or sleeves the fishing instrument corresponding to the distance from the head to the sand.

[0147] In the embodiments of the present disclosure, the detection method further comprises: if the fishing instrument is not detected and the resistance detection mechanism installed at one end of the falling object detection main body detects resistance, determining that it is non-fishing instrument resistance; starting the vibrator 13 arranged on or in the falling object detection main body when the non-fishing instrument resistance occurs; continuing to control the falling object detection main body to move downward after the vibrator 13 vibrates for a preset time; continuing to determine whether the fishing instrument is detected by using the plurality of detection signals during the process of continuing to control the falling object detection main body to move downward after the preset time; if the fishing instrument is detected, determining the position of the fishing instrument by using the plurality of detection signals corresponding to the plurality of set directions, and continuing to control the falling object detection main body to move downward; during the process of continuing to move downward, determining the distance of passing through the fishing instrument by using the plurality of first detection mechanisms and the second detection mechanism arranged on the falling object detection main body; otherwise, driving the third detection mechanism arranged inside or outside the falling object detection main body to extend out of the falling object detection main body when the fishing instrument is not detected and the resistance detection mechanism installed at one end of the falling object detection main body continues to detect resistance, and determining whether the fishing instrument is detected by using the extended third detection mechanism.

[0148] In the embodiments and other possible embodiments of the present disclosure, the third detection mechanism can be a measurement electrode 11 or a magnetic positioning mechanism; wherein the measurement electrode 11 or the magnetic positioning mechanism is in the form of a needle, for example, a probe electrode 5.

[0149] In the embodiments of the present disclosure, the method for determining whether the fishing instrument is detected by using the extended third detection mechanism comprises: if the detection signal collected by the third detection mechanism changes to a set value, determining that the fishing instrument is detected; otherwise, determining that the fishing instrument is not detected.

[0150] In embodiments of this disclosure and other possible embodiments, when the third detection mechanism is configured as a measuring electrode, the detection signal collected by the third detection mechanism is configured as resistivity; and when the third detection mechanism can be configured with multiple magnetic positioning mechanisms (e.g., coils or Hall elements), the detection signal collected by the third detection mechanism is configured as the corresponding induced electromotive force.

[0151] For example, when the third detection mechanism is configured as a measuring electrode, the detection signal collected by the third detection mechanism is configured as resistivity. When the measuring electrode detects the instrument to be retrieved, the resistivity corresponding to the third detection mechanism changes to a set value of 0; or, when the third detection mechanism is configured as a magnetic positioning mechanism, the detection signal collected by the third detection mechanism is configured as induced electromotive force. When the magnetic positioning mechanism detects the instrument to be retrieved, the induced electromotive force corresponding to the magnetic positioning mechanism changes to a set value (the set value corresponding to the induced electromotive force).

[0152] In an embodiment of this disclosure, the method of driving a third detection mechanism installed inside or outside the object detection body to extend out of the object detection body includes: controlling the operation of a drive mechanism connected to the third detection mechanism, thereby driving the third detection mechanism installed inside or outside the object detection body to extend out of the object detection body.

[0153] For example, in Figures 5-7 In the process, the driving mechanism connected to the third detection mechanism includes: a driving screw 2 disposed on the inner or outer side of the falling object detection body and a transmission screw 3 connected to the driving screw 2; the transmission screw 3 drives the driving screw 2 to move, thereby driving the third detection mechanism connected to the driving screw 2 to extend out of the falling object detection body.

[0154] Furthermore, in Figures 5-7 In this structure, the third detection mechanism and the driving mechanism connected to the third detection mechanism are disposed in the cavity 12 within the falling object detection body.

[0155] In embodiments of this disclosure, the method further includes: after determining that the instrument to be retrieved has been detected using the extended third detection mechanism, determining the thickness of an obstruction corresponding to the distance above the instrument to be retrieved using the extended third detection mechanism; and eliminating the obstruction based on the thickness of the obstruction (e.g., silt). The method for eliminating the obstruction based on its thickness includes: if the thickness of the obstruction is less than or equal to a set thickness, eliminating the obstruction using an obstruction impact scheme; otherwise, eliminating the obstruction by using a circulating sand removal scheme to discharge it from the well to the outside of the well.

[0156] In the embodiments of the present disclosure, the plurality of detection signals collected by the plurality of first detection mechanisms and / or the detection signal collected by the second detection mechanism and / or the detection signal collected by the third detection mechanism are configured as resistivity. At the same time, the plurality of detection signals collected by the plurality of first detection mechanisms and / or the detection signal collected by the second detection mechanism and / or the detection signal collected by the third detection mechanism are configured as the detection signal corresponding to the radial direction of the drop detection main body.

[0157] The execution subject of the downhole drop detection method can be a downhole drop detection device, for example, the downhole drop detection method can be executed by a terminal device or a server or other processing device, wherein the terminal device can be a user equipment (User Equipment, UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, etc. In some possible implementation manners, the downhole drop detection method can be realized by a processor calling computer readable instructions stored in a memory.

[0158] In addition, in the embodiments of the present disclosure and other possible embodiments, the execution subject of the downhole drop detection method can be Figures 5-7 logging instrument or a logging instrument comprising / applying Figures 5-7 The downhole drop detection is completed by using the logging instrument.

[0159] Those skilled in the art can understand that, in the above method of the specific implementation, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process, and the specific execution order of each step should be determined according to its function and possible internal logic.

[0160] Figure 2 A block diagram of a downhole drop detection device according to an embodiment of the present disclosure is shown. As Figure 2The downhole falling object detection device shown includes: an acquisition unit 101 configured to acquire a plurality of detection signals corresponding to a plurality of set directions collected by a plurality of first detection mechanisms arranged at one end of a falling object detection main body during movement of the falling object detection main body downward; a detection determination unit 102 configured to determine whether the to-be-fished instrument is detected by using the plurality of detection signals; an azimuth determination and control unit 103 configured to, if the to-be-fished instrument is detected, determine the azimuth of the to-be-fished instrument by using the plurality of detection signals corresponding to the plurality of set directions, and continue to control the falling object detection main body to move downward; a passing distance determination unit 104 configured to, during the continuous downward movement, determine the distance of passing through the to-be-fished instrument by using the plurality of first detection mechanisms and a second detection mechanism arranged on the falling object detection main body. The deficiencies of the prior art are remedied, and sufficient support data is provided for fishing operation engineers to solve the problems of being unable to detect the azimuth of the to-be-fished instrument and the distance of passing through the to-be-fished instrument.

[0161] In the embodiments of the present disclosure, the detection device further includes: a non-to-be-fished instrument resistance determination unit configured to determine that the non-to-be-fished instrument is resisted if the to-be-fished instrument is not detected and a resistance detection mechanism arranged at one end of the falling object detection main body detects resistance; a starting unit configured to start a vibrator 13 arranged on or in the falling object detection main body when the non-to-be-fished instrument is resisted; a control unit configured to continue to control the falling object detection main body to move downward after the vibrator 13 vibrates for a preset time; the detection determination unit is further configured to continue to determine whether the to-be-fished instrument is detected by using the plurality of detection signals during the continuous downward movement of the falling object detection main body after the preset time; the azimuth determination and control unit is configured to, if the to-be-fished instrument is detected, determine the azimuth of the to-be-fished instrument by using the plurality of detection signals corresponding to the plurality of set directions, and continue to control the falling object detection main body to move downward; the passing distance determination unit is configured to, during the continuous downward movement, determine the distance of passing through the to-be-fished instrument by using the plurality of first detection mechanisms and a second detection mechanism arranged on the falling object detection main body; otherwise, the control unit is further configured to, when the to-be-fished instrument is not detected and the resistance detection mechanism arranged at one end of the falling object detection main body continues to detect resistance, drive a third detection mechanism arranged in or outside the falling object detection main body to extend out of the falling object detection main body, and determine whether the to-be-fished instrument is detected by using the extended third detection mechanism.

[0162] In embodiments of the present disclosure, the detection determination unit comprises a first comparison unit. If the detection signal collected by the third detection mechanism changes to a set value, the first comparison unit determines that the fishing instrument is detected. Otherwise, it is determined that the fishing instrument is not detected.

[0163] In embodiments of the present disclosure, it further comprises an obstruction thickness elimination unit. After the third detection mechanism is extended to determine that the fishing instrument is detected, the obstruction thickness elimination unit determines the thickness of the obstruction above the fishing instrument by using the extended third detection mechanism. The obstruction is eliminated according to the thickness of the obstruction.

[0164] In embodiments of the present disclosure, the obstruction thickness elimination unit comprises a scheme selection unit. If the thickness of the obstruction is less than or equal to a set thickness, the obstruction is eliminated by using an obstruction impact scheme. Otherwise, the obstruction is eliminated by using a circulating sand removal scheme to discharge the obstruction from the downhole to the outside of the well.

[0165] In embodiments of the present disclosure, the control unit comprises a first control unit and a second control unit. The first control unit controls the driving mechanism connected to the third detection mechanism to act. Further, the second control unit drives the third detection mechanism installed inside or outside the falling object detection main body to extend out of the falling object detection main body.

[0166] In embodiments of the present disclosure, the detection determination unit comprises a second comparison unit. If one or more of the plurality of detection signals changes to a set value, the second comparison unit determines that the fishing instrument is detected. Otherwise, it is determined that the fishing instrument is not detected.

[0167] In embodiments of the present disclosure, the detection determination unit further comprises an obstruction detection unit. If one or more of the plurality of detection signals changes to a set value, and the obstruction detection unit detects an obstruction by using the obstruction detection mechanism installed at one end of the falling object detection main body, it is determined that the fishing instrument is detected. Otherwise, it is determined that the fishing instrument is not detected.

[0168] In embodiments of the present disclosure, the position determination unit comprises a third comparison unit and a configuration unit. If one or more of the plurality of detection signals corresponding to the plurality of set directions changes to a set value, the configuration unit obtains the position of the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body, and configures the position as the position of the fishing instrument.

[0169] In the embodiments of the present disclosure, the orientation determination unit further comprises a fourth comparison unit, and the fourth comparison unit is configured to, if, in addition to the one or more detection signals corresponding to the change to the set value, other detection signals in the plurality of detection signals corresponding to the plurality of set directions change by a value less than the set change value, the configuration unit acquires a position of the first detection mechanism corresponding to the one or more detection signals on the drop object detection main body, and configures the position as the orientation of the fishing instrument to be fished.

[0170] In the embodiments of the present disclosure, the fishing instrument effective distance determination unit is configured to determine an effective distance of the fishing instrument to fish the fishing instrument to be fished according to the distance of the fishing instrument to be fished.

[0171] In the embodiments of the present disclosure, the detection signal configuration unit is configured to configure the plurality of detection signals collected by the plurality of first detection mechanisms and / or the detection signals collected by the second detection mechanism and / or the detection signals collected by the third detection mechanism as resistivity.

[0172] In the embodiments of the present disclosure, the detection signal direction setting unit is configured to configure the plurality of detection signals collected by the plurality of first detection mechanisms and / or the detection signals collected by the second detection mechanism and / or the detection signals collected by the third detection mechanism as detection signals corresponding to the radial direction of the drop object detection main body.

[0173] In the embodiments of the present disclosure, the distance determination unit comprises a calculation unit, and the calculation unit is configured to calculate a physical distance between the plurality of first detection mechanisms and the second detection mechanism on the drop object detection main body.

[0174] In some embodiments, the device provided by the embodiments of the present disclosure has functions or contains modules which can be used to execute the downhole drop object detection method described in the above method embodiment, and the specific implementation can refer to the description of the downhole drop object detection method embodiment above. For brevity, details are not repeated here.

[0175] The embodiments of the present disclosure also propose a computer readable storage medium having computer program instructions stored thereon, and the computer program instructions are executed by a processor to implement the above downhole drop object detection method. The computer readable storage medium can be a non-volatile computer readable storage medium.

[0176] The embodiments of the present disclosure also propose an electronic device comprising a processor, a memory for storing processor executable instructions, and the processor is configured to implement the above downhole drop object detection method. The electronic device can be provided as a terminal, a server or other forms of devices.

[0177] Figure 3 is a block diagram of an electronic device 800 according to an exemplary embodiment. The electronic device 800 can be, for example, a terminal such as a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0178] Referring to Figure 3 , the electronic device 800 can include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0179] The processing component 802 usually controls overall operations of the electronic device 800, such as operations associated with displaying, making phone calls, data communications, camera operations, and recording operations. The processing component 802 can include one or more processors 820 to execute instructions to complete all or part of steps of the above-described methods. In addition, the processing component 802 can include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0180] The memory 804 is configured to store various types of data to support operations of the electronic device 800. Examples of these data include instructions for any application or method operating on the electronic device 800, contact data, phonebook data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0181] The power supply component 806 supplies electric power for the various components of the electronic device 800. The power supply component 806 can include a power supply management system, one or more power supplies, and other components associated with generating, managing and distributing electric power for the electronic device 800.

[0182] The multimedia component 808 includes a screen to provide an output interface between the electronic device 800 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and intensity of the touching or sliding action. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have a focal length and optical zooming capability.

[0183] The audio component 810 is configured to output and / or input an audio signal. For example, the audio component 810 includes a microphone (MIC) to receive an external audio signal when the electronic device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker to output an audio signal.

[0184] The I / O interface 812 provides an interface for the processing component 802 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0185] The sensor component 814 includes one or more sensors to provide various state assessments for the electronic device 800. For example, the sensor component 814 can detect an open / closed state of the electronic device 800, relative positioning of components, such as a display and a keypad of the electronic device 800, a change in position of the electronic device 800 or a component of the electronic device 800, presence or absence of user contact with the electronic device 800, an orientation or acceleration / deceleration of the electronic device 800, and a temperature change of the electronic device 800. The sensor component 814 can include a proximity sensor configured to detect presence of a nearby object without any physical touch. The sensor component 814 can further include a light sensor such as a CMOS or CCD image sensor for use in an imaging application. In some embodiments, the sensor component 814 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0186] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) techniques, infrared data association (IrDA) techniques, ultra-wideband (UWB) techniques, Bluetooth (BT) techniques, and other techniques.

[0187] In an exemplary embodiment, the electronic device 800 can be implemented with one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements, for performing the above-described methods.

[0188] In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804 including computer program instructions, is also provided, which can be executed by the processor 820 of the electronic device 800 to complete the above-described methods.

[0189] Figure 4 is a block diagram of an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 can be provided as a server. Referring to Figure 4 , the electronic device 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932, for storing instructions, such as application programs, executable by the processing component 1922. The application programs stored in the memory 1932 can include one or more than one module each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute the instructions to perform the above-described methods.

[0190] The electronic device 1900 can also include a power supply component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input / output (I / O) interface 1958. The electronic device 1900 can operate based on an operating system stored in the memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0191] In example embodiments, a non-transitory computer-readable storage medium, e.g., memory 1932 including computer program instructions, is also provided that can be executed by processing component 1922 of electronic device 1900 to implement the above-described methods.

[0192] The present disclosure can be a system, a method, and / or a computer program product. The computer program product can include a computer readable storage medium (or media) having computer readable program instructions thereon for causing a processor to carry out aspects of the present disclosure.

[0193] The computer readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. The computer readable storage medium can be, for example, but is not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium include the following: a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device such as punch-cards or punched tape, a

[0194] The computer readable program instructions described herein can be downloaded to respective computing / processing devices from a computer readable storage medium or to an external computer or external storage device via a network, for example, the Internet, a local area network, a wide area network and / or a wireless network. The network can comprise copper transmission cables, optical transmission fibers, wireless transmission, routers, firewalls, switches, gateway computers and / or edge servers. A network adapter card or network interface in each computing / processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium within the respective computing / processing device.

[0195] Computer readable program instructions for carrying out operations of the present disclosure can be assembler instructions, instruction-set-architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state-setting data, or either source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider). In some embodiments, electronic circuitry including, for example, programmable logic circuitry, field-programmable gate array (FPGA), or programmable logic array (PLA) can execute the computer readable program instructions by utilizing state information of the computer readable program instructions to personalize the electronic circuitry, in order to perform aspects of the present disclosure.

[0196] The computer readable program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0197] These computer readable program instructions can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks. These computer readable program instructions can also be stored in a computer readable storage medium that can include random access memory (RAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other data storage device. When the computer readable program instructions are loaded into the computer and other programmable data processing apparatus, a series of operational steps are implemented that provide processes such that the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0198] The computer readable program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus or other device to produce a computer implemented process such that the instructions which execute on the computer, other programmable data processing apparatus, or other device implement the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0199] The flow diagrams and the block diagrams in the drawings are presented to illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flow diagrams and the block diagrams can represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logic functions. In some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and / or flow diagrams, and combinations thereof, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and

[0200] In addition, the present disclosure proposes a logging instrument applying the downhole drop detection method as described above; and / or, comprising or applying the downhole drop detection device as described above; and / or, comprising or applying the electronic device as described above; and / or, comprising or applying the computer readable storage medium as described above.

[0201] Figure 5 A half-profile mechanical schematic diagram of a logging instrument for downhole drop detection according to an embodiment of the present disclosure is shown; Figure 6 A perspective structural schematic diagram of a logging instrument for downhole drop detection according to an embodiment of the present disclosure (the third detection mechanism extends the drop detection main body from the inside or outside of the drop detection main body); Figure 7 A full-profile mechanical schematic diagram of a logging instrument for downhole drop detection according to an embodiment of the present disclosure is shown. As Figures 5-7As shown, a plurality of first detection mechanisms are arranged at one end of the falling object detection main body, and a second detection mechanism is arranged on the falling object detection main body; wherein a plurality of detection signals corresponding to a plurality of set directions are collected by the plurality of first detection mechanisms during the downward movement of the falling object detection main body; whether the to-be-fished instrument is detected is determined by using the plurality of detection signals; if the to-be-fished instrument is detected, the position of the to-be-fished instrument is determined by using the plurality of detection signals corresponding to the plurality of set directions, and the downward movement of the falling object detection main body is continued; during the continuous downward movement, the distance through the to-be-fished instrument is determined by using the plurality of first detection mechanisms and the second detection mechanism arranged on the falling object detection main body.

[0202] In the embodiments of the present disclosure, the plurality of first detection mechanisms collect a measurement array electrode 11 arranged, and the measurement array electrode 11 includes a plurality of measurement electrodes; the measurement electrodes are arranged on the outer side of the falling object detection main body according to a plurality of set directions, and are used to collect a plurality of detection signals corresponding to the plurality of set directions.

[0203] In the embodiments of the present disclosure and other possible embodiments, the measurement array electrode 11 is arranged as a plurality of array electrodes with a set interval distance, and is used to measure the resistivity of the medium (one or more of the bottom layer, the to-be-fished instrument, mud, water / oil, etc.) in a plurality of directions in the well or underground.

[0204] For example, when the measurement array electrode 11 passes through one side of the to-be-fished instrument or encounters the to-be-fished instrument, one or more measurement electrodes on one side of the measurement array electrode 11 are on one side of the to-be-fished instrument, and the resistivity of one measurement electrode changes to a set resistivity (for example, 0); because the other measurement electrodes except the one or more measurement electrodes are on one side of the well wall or the bottom layer, the corresponding resistivity of the other measurement electrodes almost does not change.

[0205] In the embodiments of the present disclosure, the second detection mechanism is arranged as a measurement electrode ring 9 and / or a magnetic positioning short circuit 10 arranged on the falling object detection main body; during the continuous downward movement, the distance through the to-be-fished instrument is determined by using the plurality of first detection mechanisms and the measurement electrode ring 9 and / or the magnetic positioning short circuit 10 arranged on the falling object detection main body.

[0206] In the embodiments of the present disclosure, the inside or outside of the falling object detection main body is provided with a driving mechanism connected with the third detection mechanism; when the resistance detection mechanism 6 installed at one end of the falling object detection main body continues to detect resistance and the to-be-fished instrument is not detected, the third detection mechanism installed at the inside or outside of the falling object detection main body is driven to extend out of the falling object detection main body, and whether the to-be-fished instrument is detected is determined by using the extended third detection mechanism; wherein the resistance detection mechanism 6 and the plurality of first detection mechanisms are on the same side.

[0207] In the embodiments of the present disclosure, the driving mechanism connected with the third detection mechanism comprises a driving screw 2 provided at the inside or outside of the falling object detection main body and a transmission screw rod 3 connected with the driving screw 2.

[0208] The transmission screw rod 3 is used to drive the driving screw 2 to move, and then drive the third detection mechanism connected with the driving screw 2 to extend out of the falling object detection main body.

[0209] In the embodiments of the present disclosure, the third detection mechanism and the driving mechanism connected with the third detection mechanism are arranged in a cavity 12 in the falling object detection main body. The third detection mechanism is arranged as a probe electrode 5.

[0210] In the embodiments of the present disclosure, a vibrator 13 is further arranged on or in the falling object detection main body, and when the resistance detection mechanism 6 installed at one end of the falling object detection main body detects that the non-to-be-fished instrument meets resistance, the vibrator 13 arranged on or in the falling object detection main body is started. After the vibrator 13 vibrates for a preset time, the falling object detection main body continues to be controlled to move downward; during the process of continuing to control the falling object detection main body to move downward after the preset time, whether the to-be-fished instrument is detected is determined by using the plurality of detection signals.

[0211] In the embodiments of the present disclosure and other possible embodiments, further comprising a power supply electrode 7 and a metal short circuit; a sheath 1 is arranged outside the metal short circuit, the power supply electrode 7 is arranged in a groove outside the sheath 1, a cavity 12 is arranged in the sheath 1, a driving screw 2 and a transmission screw rod 3 are arranged in the cavity 12, the driving screw 2 is connected with the outside of the transmission screw rod 3, and the driving screw 2 is connected with the telescopic probe electrode 5; wherein the power supply electrode 7 is a grounding metal object for connecting the power supply for the medium (one or more of mud, water / oil, etc.) in the well or underground. The sheath 1 can be a glass fiber reinforced plastic sheath.

[0212] In the embodiments of the present disclosure, the falling object detection main body comprises a sheath 1 and an insulating short section (small-diameter insulating short section) connected with the sheath 1 and smaller than the sheath 1 in size. An insulating ring 8 is arranged at the connection between the sheath 1 and the insulating short section.

[0213] In the embodiments of the present disclosure, the insulating short section comprises an insulating shell 4 and the plurality of first detection mechanisms and / or the second detection mechanisms and / or the resistance detection mechanism 6 arranged outside the insulating shell 4.

[0214] In the embodiments and other possible embodiments of the present disclosure, the magnetic positioning short circuit 10 arranged in the groove outside the insulating short section encounters a metal object (to-be-fished instrument) in the well or downward, the coil of the magnetic positioning short circuit 10 generates a induced electromotive force, indicating that the to-be-fished instrument is passed through, so as to determine the effective length of the fish neck into the to-be-fished instrument according to the distance through the to-be-fished instrument.

[0215] In the embodiments and other possible embodiments of the present disclosure, the resistance detection mechanism 6 can be configured as a pressure touch sensor or a touch switch, and the resistance detection mechanism 6 acts when encountering resistance. The measurement array electrode 11 can be used to determine whether the to-be-fished instrument encounters resistance or non-to-be-fished instrument encounters resistance (for example, sand encounters resistance); when it is non-to-be-fished instrument encounters resistance (for example, sand encounters resistance), the vibrator 13 vibrates for a preset time to flush away the sand; after the preset time, the measurement array electrode 11 can be used to determine whether the to-be-fished instrument encounters resistance or non-to-be-fished instrument encounters resistance (for example, sand encounters resistance); when it is non-to-be-fished instrument encounters resistance (for example, sand encounters resistance), and when it is still non-to-be-fished instrument encounters resistance (for example, sand encounters resistance), the telescopic probe electrode 5 connected with the driving screw 2 is driven by the transmission screw 3 to protrude from the cavity 12, and the telescopic probe electrode 5 measures the resistivity change to a set resistivity (for example, 0) when encountering a metal object (to-be-fished instrument), so as to determine the thickness of the sand; the thickness of the sand is used to determine the flushing scheme of the sand, and the flushing scheme comprises a mud circulation sand flushing scheme or a mud impact scheme. For example, when the thickness of the sand is less than or equal to a set thickness, the mud impact scheme is adopted; otherwise, the mud impact scheme is adopted.

[0216] In the embodiments and other possible embodiments of the present disclosure, a plurality of first detection mechanisms are arranged at one end of the falling object detection main body, a plurality of detection signals corresponding to a plurality of set directions are collected by the plurality of first detection mechanisms, and it is determined whether the fishing instrument is detected according to the plurality of detection signals; at the same time, a second detection mechanism is arranged on the falling object detection main body, and the distance through the fishing instrument is determined by the plurality of first detection mechanisms and the second detection mechanism arranged on the falling object detection main body. Further, multi-layer measurement is formed to accurately reflect the running state of the proposed logging instrument and the surrounding environment.

[0217] In the embodiments and other possible embodiments of the present disclosure, a clever solution when stuck: the proposed logging instrument is connected to the cable and lowered into the well, and after the instrument reaches the fish top (top of the fishing instrument) position, the lower part of the proposed logging instrument has a smaller diameter (small-diameter insulating nipple), which forms a spatial dislocation with the stuck instrument through the side of the fishing instrument, easily verifies the passability of the stuck instrument, and provides an important reference for formulating a fishing program.

[0218] In the embodiments and other possible embodiments of the present disclosure, the resistance detection mechanism 6 at the bottom of the proposed logging instrument can obtain the resistance information of the logging instrument in the first time, overcoming the problem of untimely reaction of the resistance curve. It provides more information guarantee for lowering the cable and solves the problem of secondary accident risk caused by the accumulation of multiple cables in the wellbore.

[0219] In the embodiments and other possible embodiments of the present disclosure, a vibration lowering structure (vibrator 13 + a plurality of first detection mechanisms) is arranged in the proposed logging instrument. Through the metal zero return characteristics of the plurality of first detection mechanisms (measurement array electrode 11), it can be judged whether it is silt deposition or instrument resistance. When silt is found to hinder, the instrument will slowly descend in a micro-vibration state to avoid the problem of instrument deformation caused by impact descent.

[0220] In the embodiments and other possible embodiments of the present disclosure, if there is still a section of silt hindering after vibration descent, the proposed logging instrument is also equipped with a telescopic probe structure (third detection mechanism). Through the cooperative action of the driving switch and the lead screw, the third detection mechanism (probe electrode 5) inside the proposed logging instrument can extend 40 centimeters, further increasing the descent depth.

[0221] In the embodiments and other possible embodiments of the present disclosure, the technical indicators of the proposed logging instrument are achieved: 1. The instrument recognition accuracy is 100%; 2. The resistance feedback accuracy is 100%; 3. The descent distance reaches 40 centimeters; 4. The distance between the electrode recording point and the bottom is zero.

[0222] To sum up, the technical scheme is proposed in the present disclosure, which effectively shows high accuracy and multifunctionality. Not only can the instrument running state and environmental information be accurately measured, but also the difficulty of encountering a card can be easily overcome, and all-round safety protection is provided. At the same time, the intelligent discrimination function and the flexible extension design make the detection depth more guaranteed, and users enjoy more comprehensive and reliable data guidance. The technical problems existing in the traditional fishing method are solved, the instrument performance is improved, and a safer, more accurate and efficient fishing tool is brought to the industry.

[0223] The above has described various embodiments of the present disclosure, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or technical improvements of the technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A method of detecting a downhole object, the method comprising: The method comprises the following steps: acquiring a plurality of detection signals corresponding to a plurality of set directions collected by a plurality of first detection mechanisms arranged at one end of a falling object detection main body during the movement of the falling object detection main body downward; determining whether the fishing instrument to be detected is detected by using the plurality of detection signals; if the fishing instrument to be detected is detected, determining the position of the fishing instrument to be detected by using the plurality of detection signals corresponding to the plurality of set directions, and continuing to control the falling object detection main body to move downward; during the continuous movement of the falling object detection main body downward, determining the distance of passing through the fishing instrument to be detected by using the plurality of first detection mechanisms and a second detection mechanism arranged on the falling object detection main body; the method further comprises the following steps:

2. The method of claim 1, wherein, if the fishing instrument to be detected is not detected and a resistance detection mechanism arranged at one end of the falling object detection main body detects resistance, it is determined that the resistance is not caused by the fishing instrument to be detected; when the resistance is not caused by the fishing instrument to be detected, starting a vibrator arranged on or in the falling object detection main body; after the vibrator vibrates for a preset time, continuing to control the falling object detection main body to move downward; during the continuous movement of the falling object detection main body downward, continuing to determine whether the fishing instrument to be detected is detected by using the plurality of detection signals; if the fishing instrument to be detected is detected, determining the position of the fishing instrument to be detected by using the plurality of detection signals corresponding to the plurality of set directions, and continuing to control the falling object detection main body to move downward; during the continuous movement of the falling object detection main body downward, determining the distance of passing through the fishing instrument to be detected by using the plurality of first detection mechanisms and a second detection mechanism arranged on the falling object detection main body; otherwise, when the fishing instrument to be detected is not detected and the resistance detection mechanism arranged at one end of the falling object detection main body continues to detect resistance, driving a third detection mechanism arranged in or on the falling object detection main body to extend out of the falling object detection main body, and determining whether the fishing instrument to be detected is detected by using the extended third detection mechanism; wherein the step of determining whether the fishing instrument to be detected is detected by using the extended third detection mechanism comprises the following steps: if the detection signal collected by the third detection mechanism changes to a set value, it is determined that the fishing instrument to be detected is detected; otherwise, it is determined that the fishing instrument to be detected is not detected. The method further comprises the following steps:

3. The method of claim 2, wherein, after it is determined that the fishing instrument to be detected is detected by using the extended third detection mechanism, determining the thickness corresponding to the resistance object above the fishing instrument to be detected by using the extended third detection mechanism; eliminating the resistance object according to the thickness corresponding to the resistance object. The step of eliminating the resistance object according to the thickness corresponding to the resistance object comprises the following steps:

4. The method of any of claims 1-3, wherein, if the thickness corresponding to the resistance object is less than or equal to a set thickness, eliminating the resistance object by using a resistance object impact scheme; otherwise, eliminating the resistance object by discharging the resistance object from the well downward to the outside of the well by using a circulating sand discharge scheme. The step of driving the third detection mechanism arranged in or on the falling object detection main body to extend out of the falling object detection main body comprises the following steps: The control mechanism controls the driving mechanism connected with the third detection mechanism to move, and then drives the third detection mechanism installed inside or outside the falling object detection main body to extend out of the falling object detection main body.

5. The method of any of claims 1-3, wherein, Comprise: The determination of whether the fishing instrument is detected by using the multiple detection signals comprises: If one or more of the multiple detection signals changes to a set value, the fishing instrument is detected; Otherwise, the fishing instrument is not detected.

6. The method of claim 5, wherein, The determination of whether the fishing instrument is detected by using the multiple detection signals further comprises: If one or more of the multiple detection signals changes to a set value and the resistance detection mechanism installed at one end of the falling object detection main body detects resistance, the fishing instrument is detected; otherwise, the fishing instrument is not detected.

7. The method of claim 1-3, 6, wherein, If one or more of the multiple detection signals corresponding to the multiple set directions changes to a set value, the position of the fishing instrument is obtained by the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body, and the position is configured as the position of the fishing instrument. If one or more of the multiple detection signals corresponding to the multiple set directions changes to a set value, the position of the fishing instrument is obtained by the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body, and the position is configured as the position of the fishing instrument.

8. The method of claim 7, wherein, Further comprise: According to the distance through the fishing instrument, the effective distance of the fishing instrument is determined; and / or, 9. The method of claim 1-3, 6, 8, wherein, The multiple detection signals collected by the multiple first detection mechanisms and / or the detection signals collected by the second detection mechanism and / or the detection signals collected by the third detection mechanism are configured as resistivity; and / or, The multiple detection signals collected by the multiple first detection mechanisms and / or the detection signals collected by the second detection mechanism and / or the detection signals collected by the third detection mechanism are configured as the detection signals corresponding to the radial direction of the falling object detection main body; And / or, The distance through the fishing instrument is determined by using the multiple first detection mechanisms and the second detection mechanism installed on the falling object detection main body, which comprises calculating the physical distance between the multiple first detection mechanisms and the second detection mechanism on the falling object detection main body. Comprise: The acquisition unit is used to acquire the multiple detection signals corresponding to the multiple set directions collected by the multiple first detection mechanisms installed at one end of the falling object detection main body when the falling object detection main body moves downward; 10. A downhole debris detection apparatus, characterized by, The detection determination unit is used to determine whether the fishing instrument is detected by using the multiple detection signals; ​ ​ The azimuth determination and control unit is configured to determine the azimuth of the fishing target instrument by using the multiple detection signals corresponding to the multiple set directions if the fishing target instrument is detected, and continue to control the drop object detection main body to move downward. The crossing distance determination unit is configured to determine the distance of crossing the fishing target instrument by using the multiple first detection mechanisms and the second detection mechanism arranged on the drop object detection main body during the continuous movement of the drop object detection main body downward. The non-fishing target instrument resistance determination unit is further configured to determine that the non-fishing target instrument resistance is encountered if the fishing target instrument is not detected and the resistance detection mechanism arranged at one end of the drop object detection main body detects the resistance. The starting unit is configured to start the vibrator arranged on or in the drop object detection main body when the non-fishing target instrument resistance is encountered. The control unit is configured to continue to control the drop object detection main body to move downward after the vibrator vibrates for a preset time. The detection determination unit is further configured to continue to determine whether the fishing target instrument is detected by using the multiple detection signals during the continuous movement of the drop object detection main body downward after the preset time. The azimuth determination and control unit is configured to determine the azimuth of the fishing target instrument by using the multiple detection signals corresponding to the multiple set directions if the fishing target instrument is detected, and continue to control the drop object detection main body to move downward. The crossing distance determination unit is configured to determine the distance of crossing the fishing target instrument by using the multiple first detection mechanisms and the second detection mechanism arranged on the drop object detection main body during the continuous movement of the drop object detection main body downward. Otherwise, the control unit is further configured to drive the third detection mechanism arranged in or outside the drop object detection main body to extend out of the drop object detection main body to determine whether the fishing target instrument is detected when the fishing target instrument is not detected and the resistance detection mechanism arranged at one end of the drop object detection main body continues to detect the resistance. The detection determination unit includes a first comparison unit, which is configured to determine that the fishing target instrument is detected if the detection signal collected by the third detection mechanism changes to a set value, and otherwise, determine that the fishing target instrument is not detected. The resistance object thickness elimination unit is further configured to determine the thickness of the resistance object corresponding to the fishing target instrument by using the extended third detection mechanism after it is determined that the fishing target instrument is detected by using the extended third detection mechanism, and eliminate the resistance object according to the thickness of the resistance object corresponding to the fishing target instrument.

11. The probe device of claim 10, wherein, The resistance object thickness elimination unit includes a scheme selection unit. The scheme selection unit is configured to eliminate the resistance object by using a resistance object impact scheme if the thickness of the resistance object corresponding to the fishing target instrument is less than or equal to a set thickness, and otherwise, eliminate the resistance object by using a circulating sand removal scheme to remove the resistance object from the well downward to the outside of the well. The control unit includes a first control unit and a second control unit.

12. The probe device of claim 11, wherein, ​ ​ 13. The probe device according to any one of claims 11 or 12, characterized in that, ​ The first control unit is configured to control the driving mechanism connected with the third detection mechanism to move. The second control unit is configured to drive the third detection mechanism installed inside or outside the falling object detection main body to move out of the falling object detection main body.

14. The probe device according to any one of claims 11 or 12, characterized in that, The detection determination unit comprises a second comparison unit. The second comparison unit is configured to determine that the fishing instrument is detected if one or more of the plurality of detection signals changes to a set value, and otherwise, determine that the fishing instrument is not detected.

15. The probe device of claim 14, wherein, The detection determination unit further comprises a resistance detection unit. The second comparison unit is configured to determine that the fishing instrument is detected if one or more of the plurality of detection signals changes to a set value, and the resistance detection unit is configured to determine that the fishing instrument is detected if the resistance detection mechanism installed at one end of the falling object detection main body detects resistance, and otherwise, determine that the fishing instrument is not detected.

16. The probe device according to any of claims 10-12, 15, characterized in that, The azimuth determination and control unit corresponds to an azimuth determination unit, which comprises a third comparison unit and a configuration unit. The third comparison unit is configured to determine that the configuration unit acquires the position of the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body and configures the position as the azimuth of the fishing instrument if one or more of the plurality of detection signals corresponding to the plurality of set directions changes to a set value.

17. The probe device of claim 16, wherein, The azimuth determination unit further comprises a fourth comparison unit. The fourth comparison unit is configured to determine that the configuration unit acquires the position of the first detection mechanism corresponding to the one or more detection signals in the falling object detection main body and configures the position as the azimuth of the fishing instrument if the change value of other detection signals in the plurality of detection signals corresponding to the plurality of set directions is less than a set change value, except for the one or more detection signals changing to a set value.

18. The probe device according to any of claims 10-12, 15, 17, characterized in that, Further comprising: A fishing instrument effective distance determination unit, which determines the effective distance of the fishing instrument to the fishing instrument according to the distance of the fishing instrument. And / or, Further comprising a detection signal configuration unit, which is configured to configure the plurality of detection signals collected by the plurality of first detection mechanisms, the detection signals collected by the second detection mechanism, and / or the detection signals collected by the third detection mechanism as resistivity. Further comprising a detection signal direction setting unit, which is configured to configure the plurality of detection signals collected by the plurality of first detection mechanisms, the detection signals collected by the second detection mechanism, and / or the detection signals collected by the third detection mechanism as detection signals corresponding to the radial direction of the falling object detection main body. The crossing distance determination unit comprises a calculation unit, which is configured to calculate the physical distance between the plurality of first detection mechanisms and the second detection mechanism on the falling object detection main body.

19. An electronic device, comprising: Comprising: A processor A memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored by the memory to execute the downhole drop detection method according to any one of claims 1 to 9.

20. A computer-readable storage medium having stored thereon computer program instructions, wherein, The computer program instructions, when executed by the processor, implement the downhole drop detection method according to any one of claims 1 to 9.

21. A logging instrument characterized by, The downhole drop detection method according to any one of claims 1 to 9 is applied; or, The downhole drop detection device according to any one of claims 10 to 18 is included or applied; or, The electronic device according to claim 19 is included or applied; or, The computer-readable storage medium according to claim 20 is included or applied.

22. The logging instrument of claim 21, wherein, Comprise: A plurality of first detection mechanisms are arranged at one end of the drop detection body, and a second detection mechanism is arranged on the drop detection body; Wherein, a plurality of detection signals corresponding to a plurality of set directions are collected by the plurality of first detection mechanisms during the movement of the drop detection body downward; whether the to-be-fished instrument is detected is determined by using the plurality of detection signals; if the to-be-fished instrument is detected, the direction of the to-be-fished instrument is determined by using the plurality of detection signals corresponding to the plurality of set directions, and the movement of the drop detection body downward is continued; during the continued movement of the drop detection body downward, the distance through the to-be-fished instrument is determined by using the plurality of first detection mechanisms and the second detection mechanism arranged on the drop detection body.

23. The logging instrument of claim 22, wherein, The plurality of first detection mechanisms collect a measurement array electrode (11), and the measurement array electrode (11) comprises: a plurality of measurement electrodes; the plurality of measurement electrodes are arranged on the outer side of the drop detection body according to a plurality of set directions, and are used to collect a plurality of detection signals corresponding to the plurality of set directions; and / or, The second detection mechanism is configured to be a measurement electrode ring (9) and / or a magnetic positioning short circuit (10) arranged on the drop detection body; during the continued movement of the drop detection body downward, the distance through the to-be-fished instrument is determined by using the plurality of first detection mechanisms and the measurement electrode ring (9) and / or the magnetic positioning short circuit (10) arranged on the drop detection body.

24. The logging instrument of any one of claims 22 or 23, wherein, A driving mechanism is arranged on the inner side or the outer side of the drop detection body, and the driving mechanism is connected with a third detection mechanism; when the to-be-fished instrument is not detected and the resistance detection mechanism (6) installed at one end of the drop detection body continues to detect resistance, the third detection mechanism installed on the inner side or the outer side of the drop detection body is driven to extend out of the drop detection body, and whether the to-be-fished instrument is detected is determined by using the extended third detection mechanism; wherein, the resistance detection mechanism (6) is on the same side as the plurality of first detection mechanisms.

25. The logging instrument of claim 24, wherein, A driving mechanism connected with the third detecting mechanism, comprising: a driving screw (2) arranged inside or outside the falling object detecting main body and a transmission screw (3) connected with the driving screw (2); the transmission screw (3) is used to drive the driving screw (2) to move, and then drive the third detecting mechanism connected with the driving screw (2) to extend out of the falling object detecting main body; and / or, The third detecting mechanism and the driving mechanism connected with the third detecting mechanism are arranged in a cavity (12) inside the falling object detecting main body; and / or, The third detecting mechanism is arranged as a probe electrode (5).

26. The logging instrument of any one of claims 21-23, 25, wherein, A vibrator (13) is further arranged on or inside the falling object detecting main body, when the resistance detecting mechanism (6) arranged at one end of the falling object detecting main body detects that no fishing instrument is met with resistance, the vibrator (13) arranged on or inside the falling object detecting main body is started; after the vibrator (13) vibrates for a preset time, the falling object detecting main body is continuously controlled to move downward; during the process of continuously controlling the falling object detecting main body to move downward after the preset time, the multiple detecting signals are used to continuously determine whether the fishing instrument is detected.

27. The logging instrument of any one of claims 21-23, 25, wherein, The falling object detecting main body comprises: a sheath (1) and an insulating short section connected with the sheath (1) and smaller than the sheath (1).

28. The logging instrument of claim 26, wherein, An insulating ring (8) is arranged at the connecting position of the sheath (1) of the falling object detecting main body and the insulating short section of the falling object detecting main body; and / or, The insulating short section of the falling object detecting main body comprises: an insulating shell (4) and multiple first detecting mechanisms and / or second detecting mechanisms and / or resistance detecting mechanisms (6) arranged outside the insulating shell (4).

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