Device and method for detecting actual perforating effect of petroleum perforating bullet

Abstract

The invention provides a petroleum perforating bullet actual perforating effect detection device, and relates to the technical field of oil and gas development logging, the petroleum perforating bullet actual perforating effect detection device comprises a plurality of array groups arranged along the axis direction of a casing, and each array group comprises an ultrasonic wave generation module used for generating a pulse signal; the input end of the signal amplification module is connected with the output end of the ultrasonic generation module, and the signal amplification module is used for performing signal enhancement on the pulse signal; the input end of the reflected wave collecting module is connected with the output end of the signal amplification module, and the reflected wave collecting module is used for receiving reflected wave signals. According to the invention, the perforation effect of the perforation section can be detected in all directions, parameters such as perforation channel depth, diameter, pore volume, distance from the perforation channel to the natural fracture, state of a near-well section of the natural fracture and the like can be accurately determined and visually displayed by using a three-dimensional ultrasonic image, information of the perforation effect can be visually known, and the method and the device can be applied to subsequent operations such as mining, fracturing, well washing, plug removal and the like. And an optimal solution is provided.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas development logging, and is applied to describing perforation effects, in particular to a device and method for detecting actual perforation effects of petroleum perforating bullets. Background Art

[0002] At present, the actual perforation effect of petroleum perforating bullets is mainly tested by the "Bailey sandstone target perforation test under perforating bullet stress conditions" standard specified in GB / T20488-2006 "Performance test method for oil and gas well shaped energy perforating equipment".

[0003] To evaluate the actual perforating effect of perforating bullets in the well, it is generally necessary to analyze the sampled cores, collect similar outcrop rocks to make sandstone targets, and then simulate perforating under conditions of simulated parameters such as wellbore pressure, reservoir pressure temperature, pore pressure and overburden pressure. After cooling and relieving pressure, the sandstone targets are measured.

[0004] Although this method can provide valuable reference data for the actual perforation effect to a certain extent, it is affected by the boundary effect of the sandstone target and the natural cracks. In particular, due to the differences in the oil and gas reservoir rocks, the actual data of the perforation effect cannot be accurately obtained. It is also impossible to determine the actual pore size, pore volume, and whether it is connected to the natural cracks, which seriously affects the perforation and oil and gas production effects.

[0005] Due to the great differences in the geological conditions of the oil and gas reservoirs being perforated, especially the differences in reservoir rock properties, wellbore pressure, reservoir pore pressure, overburden pressure, etc., this method cannot truly reflect the actual perforating effect and cannot provide accurate data for subsequent operations.

[0006] With the advancement of oil and gas extraction technology, the existing technology can no longer meet the needs of fine development, and a detection device and method that can accurately describe the perforation effect is needed. In view of the problems of the existing technology, the present invention provides a device and method for detecting the actual perforation effect of a petroleum perforating bullet. Summary of the invention

[0007] In view of the problems of the current prior art, the present invention provides a device for detecting the actual perforation effect of a petroleum perforating bullet, the device comprising a plurality of array groups arranged along the axial direction of the casing, wherein the array group comprises:

[0008] An ultrasonic generating module, which is used to generate a pulse signal;

[0009] A signal amplification module, whose input end is connected to the output end of the ultrasonic generating module, and is used to amplify the pulse signal;

[0010] The reflected wave collecting module has an input end connected to the output end of the signal amplifying module and is used to receive the reflected wave signal.

[0011] According to an embodiment of the present invention, the ultrasonic wave generating module, the signal amplifying module, and the reflected wave collecting module in the same array group are fixed at adjacent positions on the same fixing frame and arranged in an array.

[0012] According to one embodiment of the present invention, the device further comprises: a data storage module, whose input end is connected to the output end of the reflected wave collection module and is used to store the reflected wave signal.

[0013] According to one embodiment of the present invention, the device further comprises a protective cover, wherein a plurality of the array groups are sequentially arranged in the protective cover along the axial direction, and the data storage module is arranged at an end of the protective cover.

[0014] According to one embodiment of the present invention, the device further comprises: a detection module, whose input end is connected to the output end of the data storage module, for automatically identifying the reflected wave signal and removing ultrasonic interference reflected waves and clutter formed by the protective cover and well fluid.

[0015] According to one embodiment of the present invention, the device further comprises: an ultrasonic imaging module, an input end of which is connected to an output end of the detection module, for generating a perforation effect image.

[0016] According to one embodiment of the present invention, the device further includes: a display module, whose input end is connected to the output end of the ultrasonic imaging module, and is used to remove the overlapping parts of the perforation effect image, connect the whole, color the image, form a continuous three-dimensional perforation effect image, and indicate the parameters and mark the key points.

[0017] According to another aspect of the present invention, there is also provided a method for detecting the actual perforation effect of a petroleum perforating bullet, which is performed by a device as described in any one of the above items, and the method comprises:

[0018] Generate a pulse signal through the ultrasonic generating module;

[0019] The pulse signal is amplified by the signal amplification module, wherein the input end of the signal amplification module is connected to the output end of the ultrasonic generating module;

[0020] The reflected wave signal is received by the reflected wave collecting module, wherein the input end of the reflected wave collecting module is connected to the output end of the signal amplifying module.

[0021] According to one embodiment of the present invention, the method further comprises:

[0022] Storing the reflected wave signal through a data storage module, wherein an input end of the data storage module is connected to an output end of the reflected wave collection module;

[0023] After a single transmitting and receiving process is completed, the device is moved up or down along the wellbore to repeat the transmitting and receiving process, wherein each moving distance is less than the length of a single array group, and the measurement areas between adjacent transmitting and receiving processes may partially overlap but cannot be missing;

[0024] After all the tests are completed, the device is lifted to the wellhead, and the reflected wave signal is automatically identified by the detection module to remove the ultrasonic interference reflected wave and clutter formed by the protective cover and well fluid, wherein the input end of the detection module is connected to the output end of the data storage module;

[0025] Generate a perforation effect image through an ultrasonic imaging module, wherein an input end of the ultrasonic imaging module is connected to an output end of the detection module;

[0026] The overlapping parts of the perforation effect image are removed, connected as a whole, and colored through a display module to form a continuous three-dimensional perforation effect image, and the parameters and key points are marked, wherein the input end of the display module is connected to the output end of the ultrasonic imaging module.

[0027] According to another aspect of the present invention, a storage medium is provided, which contains a series of instructions for executing the method steps as described in any one of the above.

[0028] The present invention provides a device and method for detecting the actual perforation effect of a petroleum perforating bullet, which has the following advantages over the prior art:

[0029] The present invention can form continuous three-dimensional perforation effect images, indicate parameters, and mark key points. It can detect the perforation effect of the perforation section in all directions, accurately determine the parameters such as the perforation channel depth, diameter, pore volume, distance from natural fractures, and the state of the natural fracture near the wellbore section, and intuitively display them with three-dimensional ultrasonic images, so as to intuitively understand the information of the perforation effect and provide the best solution for subsequent mining, fracturing, well washing, unblocking and other operations.

[0030] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 A schematic structural diagram of a device for detecting the actual perforation effect of a petroleum perforating bullet according to an embodiment of the present invention is shown;

[0033] Figure 2 It shows a structural connection diagram of a device for detecting the actual perforation effect of a petroleum perforating bullet according to an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of a perforation effect according to an embodiment of the present invention is shown;

[0035] Figure 4 A flowchart of the steps of a method for detecting the actual perforation effect of a petroleum perforating bullet according to an embodiment of the present invention is shown.

[0036] In the accompanying drawings, the same reference numerals are used for the same components. In addition, the accompanying drawings are not drawn according to the actual scale.

[0037] The meanings of the various reference numerals in the accompanying drawings are as follows: 1-ultrasonic wave generating module; 2-signal amplifying module; 3-reflected wave collecting module, 4-data storage module; 5-detection module; 6-ultrasonic wave imaging module; 7-display module; 8-protective cover; 9-array group; 101-well fluid; 102-casing; 103-cementing cement ring; 104-oil and gas reservoir; 105-perforation channel; 201-ultrasonic wave propagation direction. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0039] At present, the actual perforating effect of perforating bullets in the well is generally evaluated by analyzing the sampled cores, collecting similar outcrop rocks to make sandstone targets, and then conducting simulated perforation under conditions of simulated parameters such as wellbore pressure, reservoir pressure temperature, pore pressure and overburden pressure. After cooling and relieving pressure, the sandstone targets are measured.

[0040] Although this method can provide valuable reference data for the actual perforation effect to a certain extent, it is affected by the boundary effect of the sandstone target and the natural cracks. In particular, due to the differences in the oil and gas reservoir rocks, the actual data of the perforation effect cannot be accurately obtained. It is also impossible to determine the actual pore size, pore volume, and whether it is connected to the natural cracks, which seriously affects the perforation and oil and gas production effects.

[0041] With the advancement of oil and gas extraction technology, existing technologies can no longer meet the needs of fine development, and a detection device and method that can accurately describe the perforation effect is needed. The present invention provides a full-range perforation effect ultrasonic detection device, which can detect the perforation effect of the perforation section in all directions, accurately determine the parameters such as the perforation channel depth, diameter, pore volume, and distance from natural fissures, and intuitively display them with three-dimensional ultrasonic images, so that the perforation effect can be intuitively understood, and the optimal solution can be provided for subsequent mining, fracturing, well washing, unblocking and other operations.

[0042] Figure 1 A schematic structural diagram of a device for detecting actual perforation effect of a petroleum perforating bullet according to an embodiment of the present invention is shown.

[0043] A device for detecting the actual perforation effect of a petroleum perforating bullet comprises a plurality of array groups 9 arranged along the axial direction of a casing, wherein the array group 9 comprises an ultrasonic generating module 1, a signal amplifying module 2 and a reflected wave collecting module 3.

[0044] The ultrasonic generating module 1 is used to generate a pulse signal. The input end of the signal amplifier module 2 is connected to the output end of the ultrasonic generating module 1, and is used to enhance the pulse signal, with a power range of 200-2000W. The input end of the reflected wave collecting module 3 is connected to the output end of the signal amplifier module 2, and is used to receive the reflected wave signal.

[0045] In one embodiment, Figure 1 As shown, the ultrasonic generating module 1, the signal amplifying module 2, and the reflected wave collecting module 3 in the same array group 9 are fixed at adjacent positions on the same fixing frame and arranged in an array. Specifically, the ultrasonic generating module 1, the signal amplifying module 2, and the reflected wave collecting module 3 together constitute the array group 9 for ultrasonic generation, gain, and collection, and the multiple array groups 9 in the detection device are arranged in a straight line.

[0046] In one embodiment, Figure 1 As shown, the detection device further includes: a data storage module 4, whose input end is connected to the output end of the reflected wave collection module 3 and is used to store the reflected wave signal.

[0047] In one embodiment, Figure 1 As shown, the detection device further includes a protective cover 8, wherein a plurality of array groups 9 are sequentially arranged in the protective cover 8 along the axial direction, and a data storage module 4 is arranged at the end of the protective cover 8. Specifically, the ultrasonic generating module 1, the signal amplifying module 2, and the reflected wave collecting module 3 form an array group 9, which is distributed in an array along the axis in the protective cover 8 to generate cylindrical ultrasonic waves and receive reflected waves. The data storage module 4 is fixedly or detachably arranged at the end of the protective cover 8.

[0048] Figure 2A structural connection diagram of a device for detecting the actual perforation effect of a petroleum perforating bullet according to an embodiment of the present invention is shown.

[0049] The detection device includes a downhole part and an uphole part. The downhole part is used to generate cylindrical ultrasonic waves, receive and store reflected waves, and the uphole part is used to filter clutter and generate a three-dimensional perforation effect image. Among them, the data storage module 4, the array group 9 (composed of the ultrasonic generation module 1, the signal amplification module 2 and the reflected wave collection module 3) and the protective cover 8 constitute the downhole part of the detection device, and the detection module 5, the ultrasonic imaging module 6 and the display module 7 constitute the uphole part of the detection device, which is set in the computer on the ground.

[0050] In one embodiment, Figure 2 As shown, the detection device includes: a detection module 5, whose input end is connected to the output end of the data storage module 4, for automatically identifying the reflected wave signal and removing the ultrasonic interference reflected wave and clutter formed by the protective cover 8 and the well fluid 101. Specifically, the detection module 5 can filter out invalid waveforms in the received reflected ultrasonic wave.

[0051] In one embodiment, Figure 2 As shown, the detection device includes: an ultrasonic imaging module 6, an input end of which is connected to the output end of the detection module 5, for generating a perforation effect image.

[0052] In one embodiment, Figure 2 As shown, the detection device includes: a display module 7, whose input end is connected to the output end of the ultrasonic imaging module 6, and is used to remove the overlapping parts of the perforation effect image, connect the whole, color the image, form a continuous three-dimensional perforation effect image, and indicate the parameters and mark the key points.

[0053] The present invention provides a device for detecting the actual perforation effect of a petroleum perforating bullet, comprising an ultrasonic generating module 1, a signal amplifying module 2, a reflected wave collecting module 3, a data storing module 4, a wave detecting module 5, an ultrasonic imaging module 6, and a display module 7.

[0054] Specifically, if Figure 2 As shown, the signal output end of the ultrasonic generating module 1 is connected to the input end of the signal amplifying module 2, the output end of the signal amplifying module 2 is connected to the input end of the reflected wave collecting module 3, the output end of the reflected wave collecting module 3 is connected to the input end of the data storage module 4, the output end of the data storage module 4 is connected to the input end of the detection module 5, the output end of the detection module 5 is connected to the input end of the ultrasonic imaging module 6, and the output end of the ultrasonic imaging module 6 is connected to the input end of the display module 7.

[0055] The present invention solves the problem that the perforation channel cannot be accurately determined at the current stage. The invention adopts the characteristic that array ultrasonic waves are reflected when encountering obstacles, uses the detection module 5 to screen out useful reflected waves, and forms a three-dimensional image of the perforation channel through the ultrasonic imaging module 6 and the display module 7.

[0056] Figure 3 A schematic diagram of a perforation effect according to an embodiment of the present invention is shown.

[0057] In actual applications, the data storage module 4, the array group 9 (composed of an ultrasonic generating module 1, a signal amplification module 2 and a reflected wave collecting module 3) and the protective cover 8 serve as the downhole part of the detection device, and are lowered into the bottom or top of the layer to be detected along the axial direction of the casing 102.

[0058] In a single transmission and reception process, the ultrasonic generating module 1 generates a pulse signal which is transmitted to the signal amplifying module 2 for signal amplification, and then passes through the protective cover 8, well fluid 101, casing 102, and cementing cement ring 103 to enter the perforated rock formation, i.e., the oil and gas reservoir 104, and propagates in the perforation channel 105 along the ultrasonic propagation direction 201. The reflected ultrasonic wave reflected back from an object is received by the reflected wave collecting module 3 and recorded in the data storage module 4.

[0059] After a single transmission and reception process is completed, the downhole part of the detection device moves up or down and repeats the transmission and reception process, wherein each movement distance is less than the length of a single array group, and the measurement areas between adjacent transmission and reception processes can partially overlap but cannot be missing.

[0060] After all the tests on the layer to be tested are completed, the downhole part of the detection device is lifted to the wellhead, the data storage module 4 is removed, and the data storage module 4 is connected to the computer of the detection module 5, the ultrasonic imaging module 6, and the display module 7. After the detection module 5 automatically identifies and removes the ultrasonic reflection waves and clutter formed by the protective cover 8 and the well fluid 101, the ultrasonic imaging module 6 forms a perforation effect image, and then the display module 7 removes the overlapping parts, connects the whole, and colors the image to form a continuous three-dimensional perforation effect image, indicating the parameters and marking the key points.

[0061] After adopting the technical solution provided by the present invention, the detection length that can be completed by the detection device is theoretically determined by the storage capacity of the data storage module 4.

[0062] The present invention can overcome the defect that the prior art cannot truly display the actual perforation effect, and provides a full-range perforation effect ultrasonic detection device, which can detect the perforation effect of the perforation section in all directions, accurately determine the parameters such as the perforation channel depth, diameter, pore volume, and distance to the natural fissure, and intuitively display them with three-dimensional ultrasonic images, so as to intuitively understand the perforation effect and provide the best solution for subsequent mining, fracturing, well washing, unblocking and other operations.

[0063] According to another aspect of the present invention, a method for detecting the actual perforation effect of a petroleum perforating bullet is provided, which is performed by a device for detecting the actual perforation effect of a petroleum perforating bullet.

[0064] Figure 4 A flowchart of the steps of a method for detecting the actual perforation effect of a petroleum perforating bullet according to an embodiment of the present invention is shown.

[0065] like Figure 4 As shown, in step S401, a pulse signal is generated. Specifically, the pulse signal is generated by the ultrasonic generating module 1.

[0066] like Figure 4 As shown, in step S402 , the pulse signal is enhanced. Specifically, the pulse signal is enhanced by the signal amplification module 2 , wherein the input end of the signal amplification module 2 is connected to the output end of the ultrasonic generating module 1 .

[0067] like Figure 4 As shown, in step S403 , the reflected wave signal is received. Specifically, the reflected wave signal is received by the reflected wave collecting module 3 , wherein the input end of the reflected wave collecting module 3 is connected to the output end of the signal amplifying module 2 .

[0068] like Figure 4 As shown, in step S404 , the reflected wave signal is stored. Specifically, the reflected wave signal is stored by the data storage module 4 , wherein the input end of the data storage module 4 is connected to the output end of the reflected wave collection module 3 .

[0069] like Figure 4 As shown, in step S405, after a single transmitting and receiving process is completed, the device is moved up or down along the wellbore, and the transmitting and receiving process is repeated. Specifically, after a single transmitting and receiving process is completed, the downhole part of the detection device is moved up or down along the wellbore, and the transmitting and receiving process is repeated, wherein each moving distance is less than the length of a single array group 9, and the measurement areas between adjacent transmitting and receiving processes can be partially overlapped but cannot be missing.

[0070] like Figure 4As shown, in step S406, after all the tests are completed, the device is lifted to the wellhead, the reflected wave signal is automatically identified, and the ultrasonic interference reflected wave and clutter formed by the protective cover and the well fluid are removed. Specifically, after all the tests are completed, the downhole part of the detection device is lifted to the wellhead, and the reflected wave signal is automatically identified by the detection module 5, and the ultrasonic interference reflected wave and clutter formed by the protective cover 8 and the well fluid 101 are removed, wherein the input end of the detection module 5 is connected to the output end of the data storage module 4.

[0071] like Figure 4 As shown, in step S407 , a perforation effect image is generated. Specifically, the perforation effect image is generated by the ultrasonic imaging module 6 , wherein the input end of the ultrasonic imaging module 6 is connected to the output end of the detection module 5 .

[0072] like Figure 4 As shown, in step S408, the overlapping parts of the perforation effect images are removed, the whole is connected, and the images are colored to form a continuous three-dimensional perforation effect image, and the parameters and key points are marked. Specifically, the overlapping parts of the perforation effect images are removed, the whole is connected, and the images are colored to form a continuous three-dimensional perforation effect image, and the parameters and key points are marked by the display module 7, wherein the input end of the display module 7 is connected to the output end of the ultrasonic imaging module 6.

[0073] In summary, in practical applications, the ultrasonic generating module 1, the signal amplifying module 2, and the reflected wave collecting module 3 are fixed at adjacent positions on the same fixed frame and arranged in an array, and the downhole part of the detection device is lowered to the bottom or top of the layer section to be detected.

[0074] The ultrasonic wave generating module 1 generates a pulse signal which is transmitted to the signal amplifying module 2 for signal amplification, and then passes through the protective cover 8, the well fluid 101, the casing 102, and the cementing cement ring 103 to enter the perforated layer rock stratum 104. The ultrasonic wave reflected back from the object is received by the reflected wave collecting module 3 and recorded in the data storage module 4.

[0075] After completing a single transmission and reception process, the downhole part of the detection device moves up or down along the wellbore, and each movement distance is less than the array length to ensure the continuity of the measurement. The measurement area can be partially overlapped but cannot be missing, and the transmission and reception process is repeated.

[0076] After all the tests are completed, the downhole part of the detection device is lifted to the wellhead, the data storage module 4 is removed, and the data storage module 4 is connected to the detection module 5, the ultrasonic imaging module 6, and the display module 7. After the detection module 5 automatically identifies and removes the ultrasonic reflection waves and clutter formed by the protective cover 8 and the well fluid 101, the ultrasonic imaging module 6 forms a perforation effect image, and then the display module 7 removes the overlapping parts, connects the whole, and colors the image to form a continuous three-dimensional perforation effect image, indicating the parameters and marking the key points.

[0077] The present invention can also determine the direction of natural fractures in oil and gas reservoirs, and the distance and position relationship with the wellbore or perforation channel.

[0078] The present invention provides a method for determining the fracture state of underground oil and gas reservoirs by analyzing the reflected waves of ultrasonic waves. The method has the characteristics of large surveying and mapping range and accurate surveying and mapping effect. The method can obtain accurate perforation effect after perforation and determine the distance to the natural fracture of the reservoir. The method can also evaluate the fracturing effect. The present invention provides a method for measuring the actual perforation effect of petroleum perforating bullets, which can obtain the channel conditions of all perforation sections, including perforation depth, aperture, pore volume and the position distance to the natural fracture.

[0079] The device and method for detecting the actual perforation effect of a petroleum perforating bullet provided by the present invention can also be used in conjunction with a computer-readable storage medium, on which a computer program is stored, and the computer program is executed to run a method for detecting the actual perforation effect of a petroleum perforating bullet. The computer program can run computer instructions, which include computer program codes, which can be in source code form, object code form, executable file, or some intermediate form, etc.

[0080] Computer-readable storage media may include: any entity or device that can carry computer program code, recording media, USB flash drives, mobile hard disks, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0081] It should be noted that the content contained in computer-readable storage media can be appropriately increased or decreased based on the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, based on legislation and patent practices, computer-readable storage media do not include electrical carrier signals and telecommunications signals.

[0082] In summary, the present invention provides a device and method for detecting the actual perforation effect of a petroleum perforating bullet, which has the following advantages over the prior art:

[0083] The present invention can form continuous three-dimensional perforation effect images, indicate parameters, and mark key points. It can detect the perforation effect of the perforation section in all directions, accurately determine the parameters such as the perforation channel depth, diameter, pore volume, distance from natural fractures, and the state of the natural fracture near the wellbore section, and intuitively display them with three-dimensional ultrasonic images, so as to intuitively understand the information of the perforation effect and provide the best solution for subsequent mining, fracturing, well washing, unblocking and other operations.

[0084] It should be understood that the embodiments disclosed in the present invention are not limited to the specific structures, processing steps or materials disclosed herein, but should be extended to equivalent substitutions of these features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0085] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0086] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] Certain terms are used throughout this application document to indicate specific system components. As those skilled in the art will recognize, different names can usually be used to indicate the same components, so this application document is not intended to distinguish those components that are only different in name but not in function. In this application document, the terms "comprise", "include" and "have" are used in an open form, and therefore should be interpreted as meaning "including but not limited to...". In addition, the terms "substantially", "substantially" or "approximately" that may be used in this article relate to the tolerances of the corresponding terms accepted by the industry. The term "coupling" as may be used in this article includes direct coupling and indirect coupling via other components, elements, circuits, or modules, wherein for indirect coupling, the components, elements, circuits, or modules between them do not change the information of the signal but can adjust its current level, voltage level, and / or power level. Inferred coupling (for example, one of the elements is coupled to another element by inference) includes direct and indirect coupling between two elements in the same way as "coupling".

[0088] The "one embodiment" or "embodiment" mentioned in the specification means that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment" or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0089] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0090] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted for facilitating the understanding of the present invention and are not intended to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A device for detecting the actual perforation effect of a petroleum perforating bullet, characterized in that: The device comprises a plurality of array groups arranged along the axial direction of the casing, wherein the array group comprises: An ultrasonic generating module, which is used to generate a pulse signal; A signal amplification module, whose input end is connected to the output end of the ultrasonic generating module, and is used to amplify the pulse signal; The reflected wave collecting module has an input end connected to the output end of the signal amplifying module and is used to receive the reflected wave signal.

2. A device for detecting the actual perforation effect of a petroleum perforating bullet according to claim 1, characterized in that: The ultrasonic wave generating modules, the signal amplifying modules and the reflected wave collecting modules in the same array group are fixed at adjacent positions on the same fixing frame and arranged in an array.

3. A device for detecting the actual perforation effect of a petroleum perforating bullet as claimed in claim 1 or 2, characterized in that: The device further comprises: a data storage module, whose input end is connected to the output end of the reflected wave collecting module and is used for storing the reflected wave signal.

4. A device for detecting the actual perforation effect of a petroleum perforating bullet as claimed in claim 3, characterized in that: The device further comprises a protective cover, wherein a plurality of the array groups are sequentially arranged in the protective cover along an axial direction, and the data storage module is arranged at an end of the protective cover.

5. A device for detecting the actual perforation effect of a petroleum perforating bullet as claimed in claim 4, characterized in that: The device also comprises: a detection module, whose input end is connected to the output end of the data storage module, and is used for automatically identifying the reflected wave signal and removing the ultrasonic interference reflected wave and clutter formed by the protective cover and well fluid.

6. A device for detecting the actual perforation effect of a petroleum perforating bullet as claimed in claim 5, characterized in that: The device further comprises: an ultrasonic imaging module, an input end of which is connected to the output end of the detection module and is used to generate a perforation effect image.

7. A device for detecting the actual perforation effect of a petroleum perforating bullet as claimed in claim 6, characterized in that: The device also includes: a display module, whose input end is connected to the output end of the ultrasonic imaging module, and is used to remove the overlapping parts of the perforation effect image, connect the whole, color the image, form a continuous three-dimensional perforation effect image, and indicate parameters and mark key points.

8. A method for detecting the actual perforation effect of a petroleum perforating bullet, characterized in that: Executed by the apparatus according to any one of claims 1 to 7, the method comprises: Generate a pulse signal through the ultrasonic generating module; The pulse signal is amplified by the signal amplification module, wherein the input end of the signal amplification module is connected to the output end of the ultrasonic generating module; The reflected wave signal is received by the reflected wave collecting module, wherein the input end of the reflected wave collecting module is connected to the output end of the signal amplifying module.

9. A method for detecting the actual perforation effect of a petroleum perforating bullet as claimed in claim 8, characterized in that: The method further comprises: Storing the reflected wave signal through a data storage module, wherein an input end of the data storage module is connected to an output end of the reflected wave collection module; After a single transmitting and receiving process is completed, the device is moved up or down along the wellbore to repeat the transmitting and receiving process, wherein each moving distance is less than the length of a single array group, and the measurement areas between adjacent transmitting and receiving processes may partially overlap but cannot be missing; After all the tests are completed, the device is lifted to the wellhead, and the reflected wave signal is automatically identified by the detection module to remove the ultrasonic interference reflected wave and clutter formed by the protective cover and well fluid, wherein the input end of the detection module is connected to the output end of the data storage module; Generate a perforation effect image through an ultrasonic imaging module, wherein an input end of the ultrasonic imaging module is connected to an output end of the detection module; The overlapping parts of the perforation effect image are removed, connected as a whole, and colored through a display module to form a continuous three-dimensional perforation effect image, and the parameters and key points are marked, wherein the input end of the display module is connected to the output end of the ultrasonic imaging module.

10. A storage medium, characterized in that: It contains a series of instructions for executing the method steps as claimed in claim 8 or 9.

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