Well testing steel wire drifting and positioning integrated tool and using method thereof

Abstract

The invention discloses a well testing steel wire drifting and positioning integrated tool and a using method thereof, and relates to the technical field of natural gas development and production, the well testing steel wire drifting and positioning integrated tool comprises a steel wire rope nut, a weighting rod is connected to the steel wire rope nut, a mechanical jar is connected to the weighting rod, and a depth correcting and drifting integrated tool is connected to the mechanical jar; the depth correction and pigging integrated tool comprises an upper connector, a middle connector and a lower connector. The upper connector and the lower connector are connected with the middle connector through detachable connecting pieces. The middle connector is connected with an eddy current sensor, a battery, a data collector and a memory, and the eddy current sensor, the data collector and the memory are all in communication connection with the controller. An operator can be helped to determine the specific position of the tubing coupling, the effect of accurate positioning is achieved, and the situation that a tool is placed on the tubing coupling, and tool setting fails is avoided; and the operation can be completed only by pulling out the well once, so that the working efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas development and production, and in particular to a well testing wire well positioning integrated tool and a use method thereof. Background Art

[0002] Wireline operation mainly refers to connecting various downhole tools through the wire wrapped around the winch, using the winch to lower the downhole tools into the oil and gas wellbore, and realizing the operation of casting, catching, switching, etc. of the downhole tools through lifting, lowering, shocking, etc. Wireline operation equipment mainly includes winch, wire, blowout prevention system, downhole tools, etc. Due to the characteristics of relatively simple wireline operation, easy operation, wide application range and easy downhole operation, it is widely used in drilling, completion and production wells. It is often used for casting and catching tools such as pressure testing in the wellbore, corrosion detection, switching sleeves, downhole chokes, etc.

[0003] The risk of wireline operation is very high. The underground conditions are complex and diverse, such as deformation of the tubing, blockage by foreign objects, wax deposition in the wellbore, sand burial, etc., and all of these cannot be observed with the naked eye and are judged entirely by operational experience. Once an accident occurs, it takes considerable time and measures to deal with it. Therefore, in any wireline operation, the first step must be to use a well-drilling gauge of appropriate size to clear the pipe string. Ensure that the downhole pipe string is unobstructed and not deformed and meets the operating conditions; at the same time, the wax, rust and rock debris on the pipe wall can be scraped off to facilitate subsequent operations; at the target operating depth, the wire tension data at that depth can be recorded to provide a reference for subsequent operations. If the well is not cleared, and the operating tool is rashly lowered, it is very likely that the operation cannot be completed normally or the tool string is stuck, which may even cause a wire breakage accident. Therefore, using a well-drilling gauge to clear the well is the first step in all wireline operations, which is very necessary and irreplaceable.

[0004] Well-clearing integration has become the most effective way to improve the efficiency of wireline operations. At present, the sampling and cleaning effects of well-clearing integration are quite significant, which reduces the number of wireline operations and saves operation time. However, well-clearing and positioning still require two wireline operations to be carried out separately. When operating downhole tools such as movable downhole chokes, plugs, and retainers, two wireline operations are required. The first trip is to use the well-clearing tool to clear the well to ensure that the operation process is not blocked or stuck. The second trip determines the depth of the tool, and uses the coupling locator to find the coupling position near the tool to avoid the downhole tool sitting on the coupling position. At the same time, the length of the wire displayed on the test well wire winch is recorded at this time to determine the precise position of the tool. Therefore, the current well-clearing tools still have the problem of low operating efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the current well clearing tools require at least two trips to enter and exit the well, and there is still a problem of low operating efficiency. The purpose is to provide an integrated well testing wire well clearing and positioning tool and a method of using it, which solves the problem of low operating efficiency of the current well clearing tools.

[0006] The present invention is achieved through the following technical solutions:

[0007] A well testing wire well positioning integrated tool, comprising a wire rope nut, a weight rod connected to the wire rope nut, a mechanical jar connected to the weight rod, and an integrated well calibration tool connected to the mechanical jar; the integrated well calibration tool comprises an upper connector, a middle connector and a lower connector, the upper connector and the lower connector are connected to the middle connector by a detachable connector; the middle connector is connected to an eddy current sensor, a battery, a data collector and a memory, and the eddy current sensor, the data collector and the memory are all communicatively connected to a controller.

[0008] Among them, the outer contour of the integrated well-drilling tool is usually cylindrical, with a maximum outer diameter of about 46mm and a length of about 200mm.

[0009] Among them, the wire rope nut, the weight rod and the mechanical jar together constitute the well-drilling gauge, and the well-drilling gauge can select the size of each component according to the actual needs of well-drilling. The lower end of the depth calibration well-drilling integrated tool is threadedly connected to the mechanical jar.

[0010] Among them, the eddy current sensor can measure the distance between the measured metal conductor and the probe surface statically and dynamically, non-contactly, with high linearity and high resolution. It is a non-contact linear measurement tool that can accurately measure the static and dynamic relative displacement changes between the measured object and the probe end face. Through the principle of eddy current effect, it can accurately measure the relative position of the measured object and the probe end face. It has the advantages of good long-term working reliability, high sensitivity, strong anti-interference ability, fast response speed, and is not affected by media such as oil and water.

[0011] During use, the high-frequency oscillating current in the preamplifier of the eddy current sensor flows into the probe coil through the extension cable, generating a sophistry magnetic field in the coil on the probe head. When the tubing coupling approaches this magnetic field, an induced current will be generated on the surface of the tubing coupling. At the same time, the eddy current field also generates an alternating magnetic field in the opposite direction of the head coil. Due to its reaction, the amplitude and phase of the high-frequency current in the head coil are changed. Through the processing of the electronic circuit of the preamplifier of the eddy current sensor, the change of coil impedance, that is, the change of the distance between the head body coil of the eddy current sensor and the tubing coupling, is converted into a change in voltage or current. The size of the output signal changes with the distance between the probe and the surface of the tubing coupling, thereby realizing the positioning of the tubing coupling.

[0012] Among them, the data acquisition memory is used to collect data detected by the eddy current sensor. The data acquisition memory and the eddy current sensor are communicatively connected to the controller, so that the eddy current sensor and the data acquisition storage can be controlled by the controller. The communication connection method can be a wired signal connection or a wireless signal connection.

[0013] The data collector performs filtering processing on the tubing coupling signal, integrates and analyzes the signal, and filters out clutter signals.

[0014] The memory stores the effective tubing coupling signals collected by the data collector.

[0015] Among them, the mechanical jar utilizes the principle of mechanical friction. The locking mechanism adopts a set of ribbed slips. The release of the slip pair is controlled by the deformation of the elastic sleeve under pressure, and the jarring force is not affected by the temperature in the well.

[0016] The tubing coupling data exported by the integrated well-testing and well-through positioning tool in the integrated well-testing and well-through positioning tool can correspond one to one with the wire length display value on the wireline winch control panel, which can help operators to clearly identify the specific position of the tubing coupling and achieve precise positioning, thus avoiding the tool from sitting on the tubing coupling and causing tool sealing failure.

[0017] In addition, the integrated well testing wireline positioning tool only requires one trip downhole wireline operation, which can not only complete the task of clearing the well, but also make it clear that during the second wireline operation, the specific position of the tool string and the distance from the tubing coupling can be determined by observing the wire length display value on the wire winch panel. This can effectively avoid the operation of lowering the tool string into the specific position of the tool string for the second wireline operation and detecting the position of the tubing coupling near the tool string. Moreover, it can be completed in one trip out of the well, which improves work efficiency and reduces the labor intensity of staff.

[0018] Furthermore, the detachable connecting piece includes installation grooves arranged at the upper and lower ends of the middle connecting head, the installation grooves are provided with internal threads, and the upper connecting head and the lower connecting head are both provided with connecting parts, and the connecting parts are provided with external threads threadedly connected to the installation grooves.

[0019] The integrated tool for calibrating, drilling and drilling wells is assembled from three parts: an upper connector, a middle connector and a lower connector. A detachable connection method is adopted, which not only makes the installation structure of the integrated tool for calibrating, drilling and drilling wells simple, but also facilitates the installation of batteries, timers, data loggers, memory devices, power cords and transmission data cables.

[0020] Furthermore, both the upper connecting head and the lower connecting head are provided with limiting bosses.

[0021] By arranging limit bosses on the upper connecting head and the lower connecting head, the staff can better control the depth of the ends of the upper joint and the lower joint inserted into the installation groove when installing the school's deep well integrated tool, thereby avoiding the situation where the upper joint and the lower joint are inserted into the installation groove too much and cause damage to the battery, timer, data acquisition device, storage device, power cord, and transmission data cable in the installation groove, thereby protecting the relevant detection components and making the installation more convenient and efficient for the staff.

[0022] Furthermore, a sealing ring is connected in the installation groove.

[0023] Furthermore, the sealing ring is a double sealing ring.

[0024] By connecting a sealing ring in the installation groove, a sealing effect can be achieved to avoid leakage in the gaps at the connections between the upper joint, the lower joint and the middle joint, thereby avoiding damage to the battery, timer, data acquisition device, memory, power cord, and transmission data cable in the installation groove by the infiltrated liquid, further realizing protection of related detection components, extending their service life and making the detection results more accurate.

[0025] Furthermore, the depth of the installation grooves at the upper and lower ends of the middle connector is greater than the length of the connecting part threadedly connected thereto, and grooves are provided at the connecting parts of the upper connector and the lower connector, and the grooves and the installation grooves form an installation cavity; a battery, a timer, a data acquisition device, a memory, a power cord, and a transmission data cable are placed in the installation cavity.

[0026] By arranging grooves on both the upper connector and the lower connector, the installation space for installing batteries, timers, data collectors, memory devices, power lines, and transmission data lines can be larger.

[0027] Among them, the installation cavity formed by the groove of the upper connector and the installation groove at the upper end of the middle connector can be used to place batteries, timers, data acquisition devices, memory devices and power cords; the installation cavity formed by the groove of the lower connector and the installation groove at the lower end of the middle connector can be used to place the transmission data cable of the eddy current sensor.

[0028] Furthermore, the battery comprises a 50mA discharge high temperature lithium battery.

[0029] A 50mA discharge high-temperature lithium battery is used as the system battery to continuously power the system for 20 months.

[0030] Furthermore, there are two eddy current sensors, both of which are connected to the middle connector and are arranged on both sides of the middle connector in a staggered installation manner; the outer shell of the middle connector where the eddy current sensor is connected is recessed inward.

[0031] The two eddy current sensors are located on both sides of the middle connector and are staggered. The outer shell of the middle connector corresponding to the eddy current sensor is recessed inward to leave a gas-liquid flow channel, thereby preventing the tool string from deviating from the center of the tubing when moving underground, which may cause the tubing coupling data to be missed. This also helps to improve the accuracy of the detection results.

[0032] The detection distance of the eddy current sensor can be adjusted according to actual needs, with a maximum temperature resistance of 200°C and a maximum pressure resistance of 70Mpa.

[0033] Furthermore, the wire rope nut and the weight rod, as well as the weight rod and the mechanical jar are connected by conversion joints.

[0034] The adapter may have two ends that are threadedly connected.

[0035] In order to achieve the above purpose, the present application also proposes a method for using a well testing wire well positioning integrated tool, comprising the following steps:

[0036] Step 1: Set the time of the timer in the integrated well calibration tool to synchronize with the depth time of the wire rope winch panel; set the detection distance of the eddy current sensor so that the eddy current sensor can just detect the metal conductor of the oil pipe wall;

[0037] Step 2: Use wireline operation to lower the integrated well-drilling tool into the well. After the tool string reaches the predetermined position, it is pulled out by wireline operation.

[0038] Step 3: After the integrated well-through tool is pulled out of the well, data fitting is performed. The specific fitting method is as follows:

[0039] (1) Derive the eddy current signal in the integrated tool for deep well calibration, calculate the number of couplings, and obtain the specific time when each tubing coupling signal is detected;

[0040] (2) deriving the steel wire length display value displayed on the steel wire winch panel corresponding to the specific time when each oil pipe coupling signal is detected;

[0041] (3) The time of the wire length display value displayed on the wire winch panel is synchronized with the specific time of the oil pipe coupling signal, and the wire length display value displayed on the wire winch panel corresponding to each oil pipe coupling is obtained;

[0042] (4) When calculating the downhole tool position at the setting depth, subtract the length of the tool string at the lower end of the eddy current sensor.

[0043] During use, in order to ensure that the wire length display value of the wire winch panel corresponds to the position of the tubing coupling, it is necessary to ensure that the wire length display time of the wire winch panel is synchronized with the tool string detection tubing coupling time. Therefore, before going down the well, it is necessary to set the time of the timer inside the integrated well calibration tool to synchronize with the depth time of the wire winch panel.

[0044] When clearing the well, the integrated well clearing and positioning tool is slowly lowered into the well at a certain speed using a steel wire operation. The eddy current sensor in the integrated well clearing and depth clearing tool is set with an appropriate detection distance, which can just detect the metal conductor of the oil pipe wall. When the integrated well clearing and depth clearing tool moves to the gap between adjacent oil pipe couplings, the detection signal disappears, and the data collector records the number of times the eddy current sensor detection signal disappears. After the tool string reaches the predetermined position, it is pulled out by steel wire operation.

[0045] In data fitting, since the tool string detects the tubing coupling with an eddy current sensor, the specific position of the wire length display value of the wire winch panel corresponding to the tubing coupling is the eddy current sensor. Based on the long overall length of the tool string, the length of the tool string at the lower end of the eddy current sensor should be subtracted when calculating the downhole tool position at the setting depth.

[0046] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0047] (1) The tubing coupling data derived from the integrated tool for depth calibration and well positioning in the integrated tool for well testing and wireline positioning can correspond to the wireline length display value on the wireline winch control panel one by one, which can help operators to clearly identify the specific position of the tubing coupling and achieve accurate positioning, thus avoiding the tool from being placed on the tubing coupling, resulting in tool setting failure;

[0048] (2) The well test wireline well positioning integrated tool only requires one downhole wireline operation, which can not only complete the task of well clearance, but also clearly define the specific position of the tool string and the distance from the tubing coupling by observing the wireline length display value on the wireline winch panel during the second wireline operation. This can effectively avoid the operation of lowering the tool string into the specific position of the tool string and detecting the position of the tubing coupling near the tool string during the second wireline operation. Moreover, it can be completed in one trip out of the well, which improves work efficiency and reduces the labor intensity of the staff.

[0049] (3) The integrated tool for calibrating the depth and passing the well is assembled from three parts, namely, an upper connector, a middle connector and a lower connector, and adopts a detachable connection method, which not only makes the installation structure of the integrated tool for calibrating the depth and passing the well simple, but also facilitates the installation of batteries, timers, data collectors, memory devices, power cables and data transmission cables;

[0050] (4) By setting limit bosses on the upper connector and the lower connector, the staff can better control the depth of the ends of the upper connector and the lower connector inserted into the installation groove when installing the school's deep well integrated tool, thereby avoiding the situation where the upper connector and the lower connector are inserted too much into the installation groove and cause damage to the battery, timer, data acquisition device, storage, power cord, and transmission data cable in the installation groove, thereby protecting the relevant detection components and making the installation more convenient and efficient for the staff;

[0051] (5) By connecting a sealing ring in the installation groove, a sealing effect can be achieved to prevent leakage from the gaps at the connection between the upper joint, the lower joint and the middle joint, thereby preventing the battery, timer, data acquisition device, memory, power cord, and data transmission cable in the installation groove from being damaged by the infiltrated liquid, further realizing the protection of related detection components, extending their service life and making the detection results more accurate;

[0052] (6) By providing grooves at both the upper connector and the lower connector, the installation space for batteries, timers, data collectors, memory, power cables, and data transmission cables can be larger;

[0053] (7) The two eddy current sensors are located on both sides of the middle connector and are staggered. The outer shell of the middle connector corresponding to the eddy current sensor is recessed inward to leave a gas-liquid flow channel to avoid missing the data of the tubing coupling when the tool string deviates from the center of the tubing when moving underground, which also plays a role in improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0055] Figure 1 It is a structural schematic diagram of a well testing wire well positioning integrated tool in the present invention;

[0056] Figure 2 It is a schematic diagram of the structure of the integrated tool for deep well access in the present invention.

[0057] Marks and corresponding parts names in the attached drawings:

[0058] 01-wire rope nut, 02-conversion joint, 03-weight rod, 04-mechanical jar, 05-integrated tool for deep well calibration, 06-groove, 07-limit boss, 08-eddy current sensor, 09-upper connector, 10-lower connector, 11-middle connector, 12-installation groove, 13-sealing ring. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a connection or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Example 1

[0064] like Figure 1 , Figure 2As shown, this embodiment provides an integrated tool for well testing wire well positioning, including a wire rope nut 01, the wire rope nut 01 is connected to a weight rod 03 through an adapter joint with threaded structures at both ends, the weight rod 03 is also connected to a mechanical jar 04 through an adapter joint with threaded structures at both ends, and the mechanical jar 04 is connected to an integrated tool for depth calibration and well positioning 05; the integrated tool for depth calibration and well positioning 05 includes an upper connector 09, a middle connector 11 and a lower connector 10, and the upper connector 09 and the lower connector 10 are connected to the middle connector 11 through a detachable connector; the middle connector 11 is connected to an eddy current sensor 08, a 50mA discharge high-temperature lithium battery, a data collector and a memory, and the eddy current sensor 08, the data collector and the memory are all communicatively connected to the controller.

[0065] Specifically, the detachable connector includes a mounting groove 12 provided at the upper and lower ends of the middle connector 11, and an internal thread is provided in the mounting groove 12. The upper connector 09 and the lower connector 10 are both provided with a connecting portion, and the connecting portion is provided with an external thread that is threadedly connected to the mounting groove 12. The integrated well calibration tool 05 is assembled from the upper connector 09, the middle connector 11 and the lower connector 10, and adopts a detachable connection method, which not only makes the installation structure of the integrated well calibration tool 05 simple, but also facilitates the installation of batteries, timers, data collectors, memory, power cords, and transmission data cables.

[0066] Specifically, the upper connector 09 and the lower connector 10 are both provided with a limiting boss 07. By providing the limiting boss 07 on the upper connector 09 and the lower connector 10, the staff can better control the depth of the ends of the upper connector and the lower connector inserted into the installation slot 12 when installing the school's deep well integrated tool 05, avoiding the situation where the upper connector and the lower connector are inserted too much into the installation slot 12, causing the battery, timer, data collector, storage, power cord, and transmission data cable in the installation slot 12 to be crushed, thereby protecting the relevant detection components, and also making the installation more convenient for the staff and more efficient.

[0067] Specifically, a double sealing ring 13 is installed in the installation groove 12. By connecting the sealing ring 13 in the installation groove 12, a sealing effect can be achieved to avoid leakage at the gap between the upper joint, the lower joint and the middle joint, thereby avoiding the battery, timer, data acquisition device, memory, power line, and data transmission line in the installation groove 12 from being damaged by the infiltrated liquid, further realizing the protection of related detection components, extending their service life and making the detection results more accurate.

[0068] Specifically, the depth of the installation groove 12 at the upper and lower ends of the middle connector 11 is greater than the length of the connection part threadedly connected thereto, and the connection parts of the upper connector 09 and the lower connector 10 are both provided with grooves 06, and the grooves 06 and the installation grooves 12 form an installation cavity; the battery, timer, data collector, memory and power cord are placed in the installation cavity formed by the grooves 06 of the upper connector 09 and the installation grooves 12 at the upper end of the middle connector 11; the transmission data line of the eddy current sensor 08 is placed in the installation cavity formed by the grooves 06 of the lower connector 10 and the installation grooves 12 at the lower end of the middle connector 11. By providing grooves 06 at both the upper connector 09 and the connection part connected to the lower connector, the installation space for installing batteries, timers, data collectors, memory, power cords and transmission data lines can be larger.

[0069] Specifically, there are two eddy current sensors 08, both of which are connected to the middle connector 11. The linear range of the two eddy current sensors 08 is greater than 11 mm, and can be 12 mm, 13 mm, 14 mm, etc. Those skilled in the art can make specific determinations based on the actual structure. This embodiment takes 12 mm as an example, and the two eddy current sensors 08 are arranged on both sides of the middle connector 11 in a staggered installation manner; the outer shell of the middle connector 11 where the eddy current sensor 08 is connected is recessed inward. The two eddy current sensors 08 are respectively located on both sides of the middle connector 11 and are staggered. The outer shell of the middle connector 11 corresponding to the eddy current sensor 08 is recessed inward, leaving a gas-liquid flow channel to avoid missing the data of the tubing coupling when the tool string deviates from the center of the tubing when moving downhole, which also plays a role in improving the accuracy of the detection results.

[0070] The tubing coupling data derived from the integrated tool for deep well testing and well positioning 05 in the integrated tool for deep well testing and well positioning can correspond to the wire length display value on the wire winch control panel one by one, which can help operators to clearly identify the specific position of the tubing coupling and achieve the effect of accurate positioning, and avoid the tool sitting on the tubing coupling, resulting in tool sealing failure. Only one downhole wire operation is needed to complete the task of well clearance, and it is also clear that during the second wire operation, the specific position of the tool string and the distance from the tubing coupling can be determined by observing the wire length display value on the wire winch panel. This can effectively avoid the operation of lowering the tool string into the specific position of the secondary wire operation and detecting the position of the tubing coupling near the tool string, and it can be completed in one trip out of the well, which improves work efficiency and reduces the labor intensity of the staff.

[0071] Example 2

[0072] Based on Example 1, this embodiment provides a method for using a well testing wire well positioning integrated tool, which specifically includes the following steps:

[0073] Step 1, setting time: In order to ensure that the wire length display value of the wire winch panel corresponds to the position of the tubing coupling, it is necessary to ensure that the wire length display time of the wire winch panel is synchronized with the tool string detection coupling time. Therefore, before going down the well, the timer inside the deep well integrated tool 05 is set to synchronize with the depth time recorded on the wire winch panel;

[0074] Step 2, tool string well: When well-drilling, the integrated tool 05 for deep-well-drilling is slowly lowered into the well at a certain speed by using a steel wire operation, and an appropriate detection distance is set for the eddy current sensor 08 in the integrated tool 05 for deep-well-drilling so that the detection distance can just detect the metal conductor of the oil pipe wall. When the integrated tool 05 for deep-well-drilling moves to the gap between two adjacent oil pipe couplings, the detection signal disappears, and the data acquisition device records the number of times the detection signal of the eddy current sensor 08 disappears. After the tool string reaches the predetermined position, it is pulled out by steel wire operation;

[0075] Step 3, data fitting:

[0076] (1) deriving the eddy current signal in the memory of the integrated tool 05 for deep well calibration, calculating the number of couplings, and obtaining the specific time when each tubing coupling signal is detected;

[0077] (2) deriving the steel wire length display value displayed on the steel wire winch panel corresponding to the specific time when each oil pipe coupling signal is detected;

[0078] (3) The time of the wire length display value displayed on the wire winch panel is synchronized with the specific time of the oil pipe coupling signal, and the wire length display value displayed on the wire winch panel corresponding to each oil pipe coupling is obtained;

[0079] (4) Since the tool string detects the tubing coupling with the eddy current sensor 08, the specific position of the wire length display value on the wire winch panel corresponding to the tubing coupling is the eddy current sensor 08. Since the overall length of the tool string is relatively long, the length of the tool string at the lower end of the eddy current sensor must be subtracted when calculating the downhole tool position at the setting depth.

[0080] In actual application, the integrated well testing wire well positioning tool with this structure and the corresponding usage method can accurately locate the position of downhole tools such as movable downhole chokes, plugs, and retainers. Not only is the positioning accurate, but all the above operations can be completed in one trip, thereby achieving the effect of improving operating efficiency.

[0081] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A well testing wire well positioning integrated tool, comprising a wire rope nut (01), a weighting rod (03) connected to the wire rope nut (01), a mechanical jar (04) connected to the weighting rod (03), characterized in that: The mechanical jar (04) is connected to an integrated well-drilling and well-passing tool (05); the integrated well-drilling and well-passing tool (05) comprises an upper connector (09), a middle connector (11) and a lower connector (10); the upper connector (09) and the lower connector (10) are connected to the middle connector (11) via a detachable connector; the middle connector (11) is connected to an eddy current sensor (08), a battery, a data collector and a memory; the eddy current sensor (08), the data collector and the memory are all communicatively connected to a controller.

2. The well testing wire well positioning integrated tool according to claim 1, characterized in that: The detachable connecting member comprises mounting grooves (12) arranged at the upper and lower ends of the middle connecting head (11), wherein the mounting grooves (12) are provided with internal threads, and the upper connecting head (09) and the lower connecting head (10) are both provided with connecting parts, wherein the connecting parts are provided with external threads threadedly connected to the mounting grooves (12).

3. The well testing wire positioning integrated tool according to claim 2, characterized in that: The upper connecting head (09) and the lower connecting head (10) are both provided with a limiting boss (07).

4. The well testing wire positioning integrated tool according to claim 2, characterized in that: A sealing ring (13) is connected inside the installation groove (12).

5. The well testing wire positioning integrated tool according to claim 4, characterized in that: The sealing ring (13) is a double sealing ring (13).

6. The well testing wire positioning integrated tool according to claim 2, characterized in that: The depth of the mounting grooves (12) at the upper and lower ends of the middle connector (11) is greater than the length of the connection portion threadedly connected thereto, and the connection portions of the upper connector (09) and the lower connector (10) are both provided with grooves (06), and the grooves (06) and the mounting grooves (12) form a mounting cavity; a battery, a timer, a data collector, a memory, a power cord, and a transmission data cord are placed in the mounting cavity.

7. The well testing wire positioning integrated tool according to claim 6, characterized in that: The battery includes a 50 mA discharge high temperature lithium battery.

8. The well testing wire positioning integrated tool according to claim 1, characterized in that: The number of the eddy current sensors (08) includes two, both of which are connected to the middle connector (11) and are arranged on both sides of the middle connector (11) in a staggered installation manner; the outer shell of the middle connector (11) connected to the eddy current sensor (08) is recessed inwards.

9. The well testing wire positioning integrated tool according to claim 1, characterized in that: The steel wire rope nut (01) and the weight rod (03) as well as the weight rod (03) and the mechanical jar (04) are connected by a conversion joint (02).

10. A method for using the well testing wire well positioning integrated tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Setting the time of the timer in the integrated well calibration tool (05) to be synchronized with the depth time of the wire rope winch panel; setting the detection distance of the eddy current sensor (08) so that the eddy current sensor (08) can just detect the metal conductor of the oil pipe wall; Step 2: Use wireline operation to lower the integrated tool (05) into the well. After the tool string reaches the predetermined position, it is pulled out by wireline operation. Step 3: After the integrated well-calibration tool (05) is pulled out of the well, data fitting is performed. The specific fitting method is as follows: (1) deriving the eddy current signal in the integrated tool for deep well calibration (05), calculating the number of couplings, and obtaining the specific time when each tubing coupling signal is detected; (2) deriving the steel wire length display value displayed on the steel wire winch panel corresponding to the specific time when each oil pipe coupling signal is detected; (3) The time of the wire length display value displayed on the wire winch panel is synchronized with the specific time of the oil pipe coupling signal, and the wire length display value displayed on the wire winch panel corresponding to each oil pipe coupling is obtained; (4) When calculating the downhole tool position at the setting depth, subtract the length of the tool string at the lower end of the eddy current sensor.

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