A method of ground shot hanging a liner hanger

Abstract

This invention provides a method for setting up a tailpipe hanger during surface blasting, relating to the field of oil and gas exploration technology. The tailpipe hanger includes: a converter for converting acoustic signals generated by surface blasting into electrical signals to generate a setting command; a tailpipe hanger body with coils wound around its exterior to generate a local magnetic field in response to the setting command; and a cylinder liner that, under the action of the local magnetic field, drives the slips to move axially along the tailpipe hanger body to achieve setting. The tailpipe hanger provided by this invention has a simple structure, low cost, and can adapt to various geological conditions and wellbore environments. It can also accommodate various sizes of tailpipe hangers, demonstrating strong adaptability.

Description

Technical Field

[0001] This invention relates to the field of oil and gas exploration technology, and is applied to tailpipe hangers for downhole oil well tools. Specifically, it relates to a method for mounting a tailpipe hanger during surface blasting. Background Technology

[0002] Currently, tailpipe hangers use a ball-dropping pressure-building method to achieve tailpipe mounting. The pressure-building balls used are typically copper or aluminum balls. During the descent, the pressure-building balls collide with the upper casing wall, causing surface damage that affects the sealing effect. In severe cases, pressure building may fail, leading to cementing failure. Secondly, if the tailpipe hanger is lowered to a deep well, it takes a considerable amount of time for the pressure-building balls to reach the designated position after being dropped from the wellhead, thus affecting cementing efficiency and increasing construction costs.

[0003] Traditional tailpipe hangers using a hydraulic mounting method require drilling holes in the hanger body to form a pressure transmission channel and the hydraulic cylinder must withstand a certain pressure. Their special working environment limits the applicability of tailpipe hangers.

[0004] To address the problems of existing technologies, this invention provides a method for ground blasting with a tailpipe suspension device. Summary of the Invention

[0005] To address the problems of existing technologies, the present invention aims to provide a method for mounting a tailpipe hanger. This method enables the mounting of tailpipe hangers of various specifications without ball dropping, reducing the problems of unreliable sealing and low cementing efficiency caused by ball dropping and pressure buildup during mounting.

[0006] This invention provides a tailpipe hanger, the tailpipe hanger comprising: A converter that converts acoustic signals generated by ground blasting into electrical signals to generate a slingshot command; The tailpipe hanger body has a coil wound around its exterior to generate a local magnetic field in response to the seat command; The cylinder liner, under the action of the local magnetic field, drives the slip to move axially along the tailpipe hanger body to achieve seat mounting.

[0007] According to one embodiment of the present invention, the tailpipe hanger further includes: a signal receiver disposed on the tailpipe hanger body for receiving the acoustic signal.

[0008] According to one embodiment of the present invention, the converter is disposed on the cylinder liner and includes: A signal filter is used to filter the acoustic signal to obtain a filtered signal; A signal amplifier is used to amplify the filtered signal to obtain an amplified signal; A signal comparator is used to compare the amplified signal with a preset blasting signal. If the two are consistent, a high-level active signal is output through a signal shaper as the electrical signal.

[0009] According to one embodiment of the present invention, the sitting command is generated when the converter generates at least three of the electrical signals.

[0010] According to one embodiment of the present invention, the tailpipe hanger further includes: a power module disposed on the cylinder liner for supplying power to the coil in response to the mounting command.

[0011] According to one embodiment of the present invention, the tailpipe hanger further includes: a slip support sleeve, which is threadedly connected to the cylinder liner, for driving the slip to move axially along the tailpipe hanger body under the drive of the cylinder liner, so as to achieve seat mounting.

[0012] According to another aspect of the present invention, a system for a ground-based blasting tailpipe suspension device is also provided, the system comprising: Tailpipe suspension as described in any of the preceding items A blasting device, which is set on the ground, is used to generate the sound wave signal.

[0013] According to one embodiment of the present invention, at least three of the blasting devices are evenly distributed along the circumference of the derrick.

[0014] According to another aspect of the present invention, a method for ground blasting with a tailpipe hanger is also provided, performed by a system as described in any of the preceding claims, the method comprising: The tailpipe hanger was lowered to the designed well depth according to the construction requirements; The sound wave signal is generated on the ground by the blasting device; Based on the sound wave signal, the tailpipe suspension is used to achieve the mounting.

[0015] According to another aspect of the invention, a storage medium is also provided, which includes a series of instructions for performing the steps of the method described in any of the preceding claims.

[0016] This invention provides a method for attaching a tailpipe suspension device during ground blasting, which has the following advantages compared with the prior art: 1) The tailpipe hanger provided by the present invention has a simple structure, low cost, and can adapt to various geological conditions and wellbore environments. It can also adapt to various specifications of tailpipe hangers, and has strong adaptability.

[0017] 2) The mounting method provided by this invention eliminates the shortcomings of unreliable sealing and low construction efficiency of traditional tailpipe hangers that rely on ball-throwing and pressure-locking. The ground blasting mounting method of the tailpipe hanger uses sound waves as the trigger signal, which has higher signal transmission efficiency.

[0018] 3) Traditional hydraulic tailpipe hangers require drilling holes in the hanger body to form a pressure transmission channel and the hydraulic cylinder needs to withstand a certain pressure. The special working environment limits the applicability of the tailpipe hanger. The present invention adopts a ground blasting tailpipe hanger method, which eliminates the need to drill holes in the tailpipe hanger body and improves the overall reliability of the tailpipe hanger.

[0019] 4) Traditional tailpipe hangers require a ball seat to achieve pressure resistance. The ball seat structure, with its threaded connection to the pipe string, weakens the overall strength of the pipe string against internal pressure and external extrusion, increasing the risk of the pipe string collapsing. This invention utilizes a ground-based blasting tailpipe hanger, eliminating the ball seat structure, increasing the overall strength of the pipe string, and simultaneously reducing construction costs.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of a tailpipe hanger structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of acoustic signal processing according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of electrical signals according to an embodiment of the present invention is shown; Figure 4 A schematic diagram showing the distribution of ground blasting points according to an embodiment of the present invention is shown; Figure 5 A flowchart illustrating the steps of a method for ground blasting with a tailpipe hanger according to an embodiment of the present invention is shown.

[0022] In the accompanying drawings, the same parts use the same reference numerals. Also, the drawings are not drawn to scale.

[0023] The meanings of the reference numerals in the attached diagram are as follows: 1- Tailpipe hanger body; 2- Slip; 3- Slip support sleeve; 4- Cylinder liner; 5- Power module; 6- Converter; 7- Signal receiver; 8- Derrick. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Existing technology (CN115596387B) discloses a recirculating hydraulic tailpipe hanger and its hydraulic transmission control method for mounting. The tailpipe hanger includes a mounting mechanism and a hydraulic transmission control mechanism. The mounting mechanism includes a central tube and other mounting components. The upper end of the central tube is connected to an upstream tool string, and the lower end is connected to the tailpipe. The other mounting components are sequentially sleeved on the central tube. The hydraulic transmission control mechanism is integrally set within the mounting mechanism and includes a cement injection sealing pipe, a temporary plug outer sealing pipe, and a temporary plug ball seat. An annular space is formed between the cement injection sealing pipe and the central tube. The temporary plug ball seat is located inside the temporary plug outer sealing pipe. The hydraulic transmission control method for mounting controls the timely mounting of the recirculating hydraulic tailpipe hanger, which can both activate the pump to circulate and clear the annular space during the lowering of the sleeve and prevent the hanger from mounting prematurely. However, the tailpipe mounting function is achieved by using a ball-dropping pressure-holding method. During the falling process, the pressure-holding ball will collide with the upper casing well wall, which will cause the surface of the pressure-holding ball to be bumped and affect the sealing effect. In severe cases, the pressure holding cannot be achieved, which will lead to cementing failure.

[0026] The prior art (CN118008169A) discloses a balanced hydraulic cylinder type tailpipe hanger, aiming to solve the technical problem of low slip success rate in current tailpipe hangers. It includes a flow pipeline and improves the structure of the existing tailpipe hanger by setting a sliding pipeline at one end of the flow pipeline. A first and second sliding groove are set on the sliding pipeline. A first hydraulic cylinder on the outer pipe of the flow pipeline pushes a first sliding rod on the first sliding groove to drive the slip assembly. A second hydraulic cylinder on the inner pipe drives a second sliding rod on the second sliding groove to drive the slip assembly, achieving high-efficiency setting. This balanced hydraulic cylinder setting method significantly improves the setting success rate of the tailpipe hanger, solving the problem of low setting success rate in traditional tailpipe hangers, which leads to slow construction progress and affects the project schedule. It also prevents premature setting, thus improving cementing efficiency. However, as a hydraulic setting tailpipe hanger, it requires drilling holes in the hanger body to form a pressure transmission channel and the hydraulic cylinder must withstand a certain pressure. Its special working environment limits the applicability of the tailpipe hanger.

[0027] The prior art (CN118564207A) discloses an intelligent control tailpipe hanger and its usage method, including: a tailpipe hanger unit, which includes a mounting mechanism; a delivery tool for sending the tailpipe hanger unit downhole, which includes a mounting drive unit, a hydraulic release unit, and an intelligent hydraulic control system disposed axially between the mounting drive unit and the hydraulic release unit; wherein, the intelligent hydraulic control system includes a core component, a circuit unit, and a hydraulic component, the core component can receive signals transmitted from the wellhead and transmit them to the circuit unit to identify mounting or release commands and send them to the hydraulic component, the hydraulic component can output high-pressure oil to the mounting drive unit according to the mounting command, thereby driving the mounting mechanism to achieve the mounting action, or output high-pressure oil to the hydraulic release unit according to the release command to achieve the release action, and also provides a usage method of the above-mentioned intelligent control tailpipe hanger. Although the existing technology mentions that the intelligent hydraulic control system uses three signal excitation methods: mud pulse, radio electromagnetic or sound wave, the tailpipe hanger's mounting method is still hydraulic mounting. It requires drilling holes in the hanger body to form a pressure transmission channel and the hydraulic cylinder needs to withstand a certain pressure. Its special working environment limits the applicability of the tailpipe hanger.

[0028] To address the problems of existing technologies, this invention provides a method for setting up a tailpipe hanger during ground blasting. This method enables the setting up of tailpipe hangers of various specifications without ball dropping, reducing the problems of unreliable sealing and low cementing efficiency caused by ball dropping and pressure buildup. At the same time, it improves the reliability of the tailpipe hanger and the pipe string, and reduces construction costs.

[0029] Figure 1 A schematic diagram of a tailpipe hanger structure according to an embodiment of the present invention is shown.

[0030] like Figure 1 As shown, the tailpipe hanger includes: a converter 6, a tailpipe hanger body 1, and a cylinder liner 4. The converter 6 converts the acoustic signal generated by ground blasting into an electrical signal to generate a mounting command. A coil is wound around the outside of the tailpipe hanger body 1 to respond to the mounting command and form a local magnetic field. Under the action of the local magnetic field, the cylinder liner 4 drives the slip 2 to move axially along the tailpipe hanger body 1 to achieve mounting.

[0031] In one embodiment, such as Figure 1 As shown, the tailpipe hanger also includes a signal receiver 7, which is installed on the tailpipe hanger body 1 and used to receive acoustic signals. Specifically, the acoustic signal generated by the ground blasting is transmitted to the signal receiving device 7 of the tailpipe hanger. In practical applications, three blasting devices are set at the ground blasting point and need to be evenly distributed along the circumference of the derrick 8. Furthermore, the three blasting devices are blasted sequentially, with a 30-second interval between blasts.

[0032] In one embodiment, the converter 6 is disposed on the cylinder liner 4, such as Figure 2 As shown, converter 6 includes: a signal acquisition unit, a signal filter, a signal amplifier, a signal comparator, and a signal shaper. The signal acquisition unit receives the acoustic signal transmitted from the signal receiver 7; the signal filter filters the acoustic signal to obtain a filtered signal; the signal amplifier amplifies the filtered signal to obtain an amplified signal; and the signal comparator compares the amplified signal with a preset blasting signal. If they match, the signal shaper outputs a high-level active signal as an electrical signal.

[0033] It should be noted that the preset blasting signal refers to the sound wave signal generated by the ground blasting device due to blasting. This invention does not impose specific limitations on the preset blasting signal.

[0034] In one embodiment, a mounting command is generated when the converter generates at least three electrical signals. Specifically, the converter 6 is equipped with a signal processing device that can amplify, filter, and shape the collected acoustic signals. The converter 6 can identify the processed signals to determine whether they are blasting signals, preventing the tailpipe hanger from malfunctioning. Furthermore, each time the ground blasting device detonates, the converter generates a high-level valid signal as an electrical signal. If the converter generates at least three electrical signals (such as...), a mounting command is generated. Figure 3 As shown (the number of explosions is the same), a mounting signal is generated to indicate that the tailpipe suspension needs to be mounted.

[0035] In one embodiment, such as Figure 1 As shown, the tailpipe hanger also includes: a power module 5, which is located in the cylinder liner 4, for supplying power to the coil in response to the mounting command. Specifically, the converter 6 receives three cycles of high-level active signals (such as...). Figure 3 As shown, the trigger power module 5 supplies power to the coil wound around the tailpipe suspension body 1.

[0036] In one embodiment, the tailpipe hanger body 1 and the cylinder liner 4 form a simple linear motor. The stator of the linear motor is the tailpipe hanger body 1, on which coils are wound to generate a local magnetic field when energized. The mover of the linear motor is the cylinder liner 4, which moves axially along the tailpipe hanger body 1 under the influence of the local magnetic field. The drive signal (seat-mount signal) for the linear motor is provided by the converter 6. The power module 5 and the converter 6 are mounted on the cylinder liner 4 and can move together with the cylinder liner 4.

[0037] In one embodiment, such as Figure 1As shown, the tailpipe suspension also includes: a slip support sleeve 3, which is threadedly connected to the cylinder liner 4, used to drive the slip 2 to move axially along the tailpipe suspension body 1 under the drive of the cylinder liner 4, so as to achieve seat mounting. Specifically, the slip support sleeve 3 is connected to the cylinder liner 4 to drive the slip support sleeve 3 to move upward, thereby driving the slip 2 to move upward to achieve seat mounting (here "upward" refers to...). Figure 1 (Direction indicated by the middle arrow).

[0038] Figure 4 A schematic diagram showing the distribution of ground blasting points according to an embodiment of the present invention is displayed.

[0039] In one embodiment, a system for ground-based blasting of a tailpipe hanger includes a tailpipe hanger and a blasting device. The blasting device is positioned on the ground and is used to generate an acoustic signal.

[0040] Specifically, such as Figure 4 As shown, at least three blasting devices are evenly distributed along the 8 circumferences of the derrick, respectively located at blasting point I, blasting point II, and blasting point III.

[0041] Figure 5 A flowchart illustrating the steps of a method for ground blasting with a tailpipe hanger according to an embodiment of the present invention is shown.

[0042] like Figure 5 As shown, in step S1, the tailpipe hanger is lowered to the designed well depth according to the construction requirements.

[0043] Specifically, in step S1, such as Figure 4 As shown, three blasting points are evenly set along the derrick 8, namely blasting point I, blasting point II, and blasting point III. The tailpipe hanger is lowered to the designed well depth according to the construction requirements.

[0044] like Figure 5 As shown, in step S2, a sound wave signal is generated on the ground by a blasting device.

[0045] Specifically, in step S2, blast point I is detonated from the ground. The blasting sound wave generated at blast point I extends rapidly underground through the rock and is transmitted to the tailpipe hanger position.

[0046] like Figure 5 As shown, in step S3, the tailpipe suspension is used to achieve the mounting based on the acoustic signal.

[0047] Specifically, in step S3, the signal receiver 7 of the tailpipe hanger receives the blasting acoustic signal and transmits it to the converter 6 via the signal acquisition unit ①. The blasting acoustic signal transmitted downwards from the ground will attenuate after several kilometers of transmission, and there may be noise generated underground due to factors such as falling blocks, compression, and collisions. This noise will enter the converter 6 along with the blasting signal, causing signal distortion. To obtain a true blasting signal, a signal filter ② is used to filter the blasting signal to remove or reduce noise, clutter, and other interference components. However, the filtered blasting signal does not solve the signal attenuation problem. To obtain a true blasting signal, a signal amplifier ③ is used to amplify the blasting signal. The amplified signal is transmitted to the signal comparator ④ and compared with a preset blasting signal. If it matches the preset blasting signal, the signal is transmitted to the signal shaper ⑤ and a valid high-level signal is output. The blasting point II is detonated at 30-second intervals, operating on the same principle as above, until three valid high-level signals are obtained. Three high-level valid signals are transmitted to the power module 5, triggering the power module 5 to generate current to power the coil. When the coil is energized, it generates a local magnetic field that pushes the cylinder liner 4 upward along the tailpipe suspension body 1. The cylinder liner 4 is connected to the slip support sleeve 3 by threads, and the cylinder liner 4 transmits its motion to the slip support sleeve 3 to push the slip 2 upward to complete the mounting.

[0048] The method for ground-based blasting tailpipe suspension provided by this invention can also be used in conjunction with a computer-readable storage medium. The storage medium stores a computer program, which is executed to run the method for ground-based blasting tailpipe suspension. The computer program is capable of executing computer instructions, which include computer program code. The computer program code can be in the form of source code, object code, executable file, or some intermediate form.

[0049] Computer-readable storage media may include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0050] It should be noted that the contents of computer-readable storage media may be appropriately added to or subtracted from the contents according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media may not include electrical carrier signals and telecommunication signals.

[0051] In summary, the present invention provides a method for mounting a tailpipe suspension device in ground blasting, which has the following advantages compared with the prior art: 1) The tailpipe hanger provided by the present invention has a simple structure, low cost, and can adapt to various geological conditions and wellbore environments. It can also adapt to various specifications of tailpipe hangers, and has strong adaptability.

[0052] 2) The mounting method provided by this invention eliminates the shortcomings of unreliable sealing and low construction efficiency of traditional tailpipe hangers that rely on ball-throwing and pressure-locking. The ground blasting mounting method of the tailpipe hanger uses sound waves as the trigger signal, which has higher signal transmission efficiency.

[0053] 3) Traditional hydraulic tailpipe hangers require drilling holes in the hanger body to form a pressure transmission channel and the hydraulic cylinder needs to withstand a certain pressure. The special working environment limits the applicability of the tailpipe hanger. The present invention adopts a ground blasting tailpipe hanger method, which eliminates the need to drill holes in the tailpipe hanger body and improves the overall reliability of the tailpipe hanger.

[0054] 4) Traditional tailpipe hangers require a ball seat to achieve pressure resistance. The ball seat structure, with its threaded connection to the pipe string, weakens the overall strength of the pipe string against internal pressure and external extrusion, increasing the risk of the pipe string collapsing. This invention utilizes a ground-based blasting tailpipe hanger, eliminating the ball seat structure, increasing the overall strength of the pipe string, and simultaneously reducing construction costs.

[0055] It should be understood that the embodiments disclosed herein are not limited to the specific structures, processing steps, or materials disclosed herein, but should be extended to equivalent substitutions of these features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0056] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] Certain terms are used throughout this application to refer to specific system components. As those skilled in the art will recognize, the same components may often be referred to by different names, and therefore this application is not intended to distinguish those components that differ only in name and not in function. In this application, the terms “comprise,” “include,” and “have” are used in an open-ended manner and should therefore be interpreted as meaning “including, but not limited to…”. Furthermore, the terms “substantially,” “materially,” or “approximately” as used herein refer to industry-accepted tolerances for the corresponding terms. The term “coupling,” as may be used herein, includes direct coupling and indirect coupling via additional components, elements, circuits, or modules, wherein, for indirect coupling, the intermediate component, element, circuit, or module does not alter the information of the signal but may adjust its current level, voltage level, and / or power level. Inferred coupling (e.g., one element inferredly coupled to another element) includes direct and indirect coupling between two elements in the same manner as “coupling.”

[0059] The phrase "an embodiment" or "an embodiment" used in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Therefore, the phrase "an embodiment" or "an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0060] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

[0061] While the embodiments disclosed in this invention are as described above, the above content is merely for the purpose of facilitating understanding of this invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this invention; however, the scope of patent protection of this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A tailpipe hanger, characterized in that, The tailpipe suspension includes: A converter that converts acoustic signals generated by ground blasting into electrical signals to generate a slingshot command; The tailpipe hanger body has a coil wound around its exterior to generate a local magnetic field in response to the seat command; The cylinder liner, under the action of the local magnetic field, drives the slip to move axially along the tailpipe hanger body to achieve seat mounting.

2. The tailpipe hanger as described in claim 1, characterized in that, The tailpipe hanger also includes a signal receiver disposed on the tailpipe hanger body for receiving the acoustic signal.

3. The tailpipe hanger as described in claim 1 or 2, characterized in that, The converter is disposed on the cylinder liner and includes: A signal filter is used to filter the acoustic signal to obtain a filtered signal; A signal amplifier is used to amplify the filtered signal to obtain an amplified signal; A signal comparator is used to compare the amplified signal with a preset blasting signal. If the two are consistent, a high-level active signal is output through a signal shaper as the electrical signal.

4. The tailpipe hanger as described in any one of claims 1-3, characterized in that, The mounting command is generated when the converter generates at least three of the electrical signals.

5. The tailpipe hanger as described in any one of claims 1-4, characterized in that, The tailpipe hanger also includes a power module disposed in the cylinder liner for supplying power to the coil in response to the mounting command.

6. The tailpipe hanger as described in any one of claims 1-5, characterized in that, The tailpipe hanger also includes a slip support sleeve, which is threadedly connected to the cylinder liner and is used to drive the slip to move axially along the tailpipe hanger body under the drive of the cylinder liner, so as to achieve seat mounting.

7. A system for a ground blasting tailpipe suspension device, characterized in that, The system includes: Tailpipe suspension as described in any one of claims 1-6, A blasting device, which is set on the ground, is used to generate the sound wave signal.

8. The system as described in claim 7, characterized in that, At least three of the aforementioned blasting devices are evenly distributed along the circumference of the derrick.

9. A method for suspending a tailpipe hanger in ground blasting, characterized in that, The method, performed by the system as described in any one of claims 7-8, comprises: The tailpipe hanger was lowered to the designed well depth according to the construction requirements; The sound wave signal is generated on the ground by the blasting device; Based on the sound wave signal, the tailpipe suspension is used to achieve the mounting.

10. A storage medium, characterized in that, It contains a series of instructions for performing the steps of the method as described in claim 9.

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