Air-blast source, seismic data acquisition method, device and equipment

Abstract

This application discloses a gas explosion source, a method, apparatus, and equipment for acquiring seismic data, belonging to the field of oil and gas seismic exploration. The gas explosion source includes an ignition and injection device and a gas storage device. The ignition and injection device includes an ignition wire and an injection pipe, with a one-way valve installed on the injection pipe. The gas storage device includes a housing, a pressure cap, and fastening screws. Both the housing and the pressure cap are welded from explosion-proof materials. The upper end face of the housing is connected to the ignition and injection device via a threaded through-hole, and the lower end face of the housing is connected to the pressure cap via fastening screws. A sealed cavity is formed between the housing and the pressure cap for storing high-pressure combustible gas. The aforementioned gas explosion source can be reused in seismic exploration projects, significantly reducing the operating costs of seismic exploration and improving construction efficiency.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of oil and gas seismic exploration, and particularly relate to a gas explosion seismic source, a seismic data acquisition method, device and equipment. BACKGROUND

[0002] Seismic exploration refers to a method of exploring the properties and geological structure of underground rocks by artificially exciting seismic waves, recording seismic wave data of the propagation of the seismic waves in the strata, and processing the seismic wave data. Currently, in micro-logging acquisition, explosive sources (such as electric detonators) are mainly used to excite seismic waves in the well. However, a large number of explosive sources are needed for each micro-logging acquisition, and the explosive sources are more strictly regulated due to their high risk, which greatly increases the cost of micro-logging operations and reduces the construction efficiency. Therefore, there is an urgent need for a new type of seismic source with low cost and high safety. SUMMARY

[0003] Embodiments of the present application provide a gas explosion seismic source, a seismic data acquisition method, device and equipment, which can be reused in seismic exploration projects, greatly reducing the operation cost of seismic exploration and improving the construction efficiency. The technical solution is as follows:

[0004] In one aspect, a gas explosion seismic source is provided, which includes: an ignition gas injection device and a gas storage device.

[0005] The ignition gas injection device includes an ignition wire and a gas injection pipe, and a one-way valve is arranged on the gas injection pipe.

[0006] The gas storage device includes a shell, a gland and a fastening screw, the shell and the gland are both made of explosion-proof material and welded, the upper end surface of the shell is connected with the ignition gas injection device through a threaded hole, the lower end surface of the shell is connected with the gland through the fastening screw, and a sealed cavity is formed between the shell and the gland for storing high-pressure combustible gas.

[0007] In some embodiments, the lower end surface of the shell is engraved with an annular groove, the annular groove is used to install a sealing element, and the sealing element is used to prevent gas leakage at the connection between the shell and the gland.

[0008] In some embodiments, the upper end surface of the shell is connected with a lifting ring on the left and right sides, respectively, the lifting ring is used to connect a lifting rope, so that the gas explosion seismic source can be put into a well hole to be excited through the lifting rope, and the shell can be taken out of the well hole after the gas explosion seismic source is excited through the lifting rope.

[0009] In some embodiments, the one-way valve is used to open when high-pressure combustible gas is injected from the gas injection pipe into the gas storage device, and to close when high-pressure combustible gas flows back.

[0010] In some embodiments, the gland has a guide stop for insertion into the interior of the housing so that the gland fits tightly against the inner wall of the housing.

[0011] In some embodiments, the fastening screws are made of non-explosion-proof materials, which are prone to breakage under high-pressure impact.

[0012] In some embodiments, when the gas explosion source is placed in the well to be activated, the cap of the gas storage device is in contact with the bottom of the well to be activated, and a well kill device is placed on the surface of the housing of the gas storage device. The lower end of the well kill device is cylindrical and in contact with the upper surface of the housing, and the upper end of the well kill device is planar and in contact with the wellhead of the well to be activated.

[0013] On the other hand, a method for acquiring seismic data is provided, the method comprising:

[0014] With the aforementioned gas explosion source placed in the well to be activated, the detonator connected to the ignition wire of the gas explosion source is controlled to send an ignition signal to the ignition wire. The ignition signal is used to instruct the ignition wire to generate an electric spark to ignite the high-pressure combustible gas in the gas storage device of the gas explosion source.

[0015] In the event that the high-pressure combustible gas is detonated, the detonator is controlled to send an acquisition signal to the seismic data acquisition instrument. The acquisition signal is used to instruct the seismic data acquisition instrument to start acquiring seismic data. The seismic data acquisition instrument is used to receive seismic wave signals from the geophone located in the receiving well.

[0016] On the other hand, a seismic data acquisition device is provided, the device comprising:

[0017] The first control module is used to control the detonator connected to the ignition wire of the gas explosion source to send a detonation signal to the ignition wire when the gas explosion source has been placed into the well hole to be activated. The detonation signal is used to instruct the ignition wire to generate an electric spark to detonate the high-pressure combustible gas in the gas storage device of the gas explosion source.

[0018] The second control module is used to control the detonator to send an acquisition signal to the seismic data acquisition instrument when the high-pressure combustible gas is detonated. The acquisition signal is used to instruct the seismic data acquisition instrument to start acquiring seismic data. The seismic data acquisition instrument is used to receive seismic wave signals from the geophone located in the receiving well.

[0019] On the other hand, a computer device is provided, the computer device including a processor and a memory, the memory storing at least one computer program, the at least one computer program being loaded and executed by the processor to implement the seismic data acquisition method as described above.

[0020] On the other hand, a computer-readable storage medium is provided, wherein at least one computer program is stored therein, the at least one computer program being loaded and executed by a processor to implement the seismic data acquisition method as described above.

[0021] On the other hand, a computer program product is provided, including a computer program loaded and executed by a processor to implement the seismic data acquisition method as described above.

[0022] This application provides a gas explosion seismic source. The gas storage device of the seismic source, consisting of a shell and a pressure cap made of explosion-proof material, not only allows the high-temperature, high-pressure gas generated by the explosion to shear off the fastening screws connecting the shell and pressure cap when the gas inside the storage device is ignited by an electric spark from an ignition wire, enabling the gas to escape from the shell and impact the bottom of the well to generate seismic waves, but also allows the shell and pressure cap of the seismic source to be removed from the wellhead after the seismic waves are generated. By reinstalling the fastening screws and the ignition and gas injection device, the seismic source can be reused, thereby greatly reducing the operating cost of seismic exploration and improving construction efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a gas explosion vibration source provided in an embodiment of this application;

[0025] Figure 2 This is a cross-sectional schematic diagram of a gas storage device provided in an embodiment of this application;

[0026] Figure 3 This is a cross-sectional schematic diagram of a well control device provided in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the implementation environment of a seismic data acquisition method provided in an embodiment of this application;

[0028] Figure 5This is a flowchart of a seismic data acquisition method provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of a seismic data acquisition device provided in an embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application.

[0031] The reference numerals in the attached figures represent:

[0032] 1-Ignition and gas injection device;

[0033] 11-Ignition wire, 12-Gas injection pipe, 13-One-way valve;

[0034] 2-Gas storage device;

[0035] 21-Housing, 22-Gland, 23-Fasting screw, 24-Seal, 25-Lifting ring;

[0036] 301 - Well control device; 302 - Wellbore;

[0037] 401 - Terminal, 402 - Explosion machine, 403 - Gas explosion source, 404 - Seismic data acquisition instrument, 405 - Detector. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0039] It is understood that the terms "first," "second," etc., used in this application may be used herein to describe various concepts, but unless otherwise stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of this application, the first group may be referred to as the second group, and similarly, the second group may be referred to as the first group.

[0040] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, data stored, data displayed, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0041] Figure 1 This is a schematic diagram of the structure of a gas explosion vibration source provided in an embodiment of this application. See also... Figure 1 The gas explosion source includes: an ignition and gas injection device 1 and a gas storage device 2.

[0042] The ignition and gas injection device 1 includes an ignition wire 11 and a gas injection pipe 12, and a one-way valve 13 is provided on the gas injection pipe 12.

[0043] The ignition wire 11 and the gas injection pipe 12 are both connected to the same end of the gas storage device 2, that is, connected to the upper end face of the housing 21 in the gas storage device 2, and both penetrate the upper end face of the housing 21. One end of the ignition wire 11 extends into the sealed cavity formed between the housing 21 and the pressure cap 22, and contacts the high-pressure combustible gas in the sealed cavity. The other end is connected to an explosive device, which controls the ignition wire 11 to generate an electric spark to ignite the high-pressure combustible gas in the sealed cavity. One end of the gas injection pipe 12 extends into the sealed cavity formed between the housing 21 and the pressure cap 22, and the other end is equipped with a one-way valve 13.

[0044] In some embodiments, the one-way valve 13 is used to open when high-pressure combustible gas is injected into the gas storage device 2 from the injection pipe 12, and to close when the high-pressure combustible gas flows back. That is, when an external gas supply device injects gas into the gas storage device 2 from the injection pipe 12, the one-way valve is in the open state, allowing gas to enter the injection pipe 12. If too much gas is injected, causing gas backflow, or if the gas diffuses freely upward after injection, the one-way valve is in the closed state, preventing gas from overflowing from the injection pipe 12 and avoiding gas leakage.

[0045] The gas storage device 2 includes a housing 21, a pressure cap 22, and fastening screws 23. The housing 21 and the pressure cap 22 are both made of explosion-proof materials by welding. The upper end face of the housing 21 is connected to the ignition and gas injection device 1 through a threaded through hole, and the lower end face of the housing 21 is connected to the pressure cap 22 through fastening screws 23. A sealed cavity is formed between the housing 21 and the pressure cap 22 for storing high-pressure combustible gas.

[0046] The housing 21 is a cylindrical, one-piece molded component with an inner hole. A threaded through-hole is provided on the upper end face of the housing 21, penetrating the upper end face. Correspondingly, the ignition and gas injection device 1 can be connected to the gas storage device 2 through this threaded through-hole. The lower end face of the housing 21 is annular, with multiple bolt holes along its edge. The gland 22 is a flange-type component. The flange is a disc-shaped metal structure with multiple bolt holes along its edge. When connecting the lower end face of the housing 21 and the gland 22 using fastening screws 23, the fastening screws 23 first enter through the bolt holes on the gland 22, and then enter the corresponding bolt holes on the lower end face of the housing 21. By tightening the fastening screws 23 that penetrate through the bolt holes to the lower end face of the gland 22 and the housing 21, the connection between the lower end face of the housing 21 and the gland can be achieved, thereby sealing the inner hole of the housing 21 to form a gas storage chamber. The gas storage chamber is the sealed cavity formed between the shell 21 and the pressure cap 22. This sealed cavity is used to store high-pressure combustible gas injected through the gas injection pipe 12. The high-pressure combustible gas is a mixture of oxygen and combustible gas, such as acetylene, ethylene, and propane.

[0047] In some embodiments, Figure 2 This is a cross-sectional schematic diagram of a gas storage device provided in an embodiment of this application. See also... Figure 2 The lower end face of the housing 21 is engraved with an annular groove, which is used to install the seal 24. The seal 24 is used to prevent gas leakage at the connection between the housing 21 and the gland 22.

[0048] The lower end face of the housing 21 is annular, with an annular groove located inside the lower end face. This annular groove allows for the installation of a seal 24, an O-ring, at the lower end face of the housing 21. The seal 24 is located between the lower end face of the housing 21 and the gland 22, providing a seal and preventing gas leakage at the connection between the housing 21 and the gland 22.

[0049] In some embodiments, see continue to see Figure 2 The pressure cap 22 has a guide stop for inserting into the interior of the housing 21 so that the pressure cap 22 fits tightly against the inner wall of the housing 21.

[0050] The guide stop is the protruding part of the pressure cap 22. This protruding part is cylindrical, and the diameter of the cylinder is equal to the inner diameter of the housing 21. Accordingly, when the protruding part of the pressure cap 22 is inserted into the housing 21, the side of the protruding part contacts the inner surface of the housing 21, so that the pressure cap 22 can fit tightly against the inner wall of the housing 21, thereby enhancing the airtightness of the gas storage device 2 and preventing gas leakage.

[0051] In some embodiments, see continue to seeFigure 2 The fastening screw 23 is made of non-explosion-proof material and is prone to breakage under high-pressure impact. Correspondingly, if the high-pressure combustible gas in the gas storage device 2 is ignited by an electric spark generated by the ignition wire 11, the resulting high-pressure, high-temperature mixture can shear off the fastening screw 23 connecting the housing 21 and the pressure cap 22. When the fastening screw 23 is sheared off, the pressure cap 22 will be ejected due to the impact of the high-pressure, high-temperature mixture, causing the gas to rush out from inside the housing 21 and impact the bottom of the well, generating seismic waves.

[0052] In some embodiments, Figure 3 This is a cross-sectional schematic diagram of a well control device provided in an embodiment of this application. See also... Figure 3 The upper end face of the shell 21 is connected to lifting rings 25 on the left and right sides respectively. The lifting rings 25 are used to connect the lifting rope so that the gas explosion source can be put into the well hole to be excited through the lifting rope, and the shell 21 can be taken out from the well hole through the lifting rope after the gas explosion source is excited.

[0053] In the process of micro-logging, a seismic source needs to be placed in the wellbore to generate seismic waves by impacting the bottom of the well upon activation. Since the depth of the wellbore is variable, ranging from 1 meter to 10 meters, two lifting rings 25 are connected to the upper surface of the shell 21 of the seismic source in this embodiment to facilitate quick and convenient placement of the seismic source by construction personnel. Correspondingly, when the wellbore is deep, construction personnel can place the seismic source into the wellbore by connecting a lifting rope to the lifting rings 25. Because the shell 21 of the seismic source provided in this embodiment is made of explosion-proof material, the shell 21 is not destroyed by the explosion when the high-pressure combustible gas inside is ignited; that is, the shell 21 can be reused. Correspondingly, after the gas explosion source is activated, the construction personnel can also use the lifting rope connected to the lifting ring 25 to take the housing 21 of the gas explosion source out of the well hole, so as to reuse the housing 21 to assemble the gas explosion source again, realizing the reusability of the gas explosion source and greatly saving the operating cost of micro-logging.

[0054] In some embodiments, see continue to see Figure 3 When the gas explosion source is placed into the well to be activated, the pressure cap 22 of the gas storage device 2 is in contact with the bottom of the well to be activated, and a well kill device 301 is placed on the surface of the shell 21 of the gas storage device 2. The lower end of the well kill device 301 is cylindrical and is in contact with the upper surface of the shell 21, while the upper end of the well kill device 301 is planar and is in contact with the wellhead of the well to be activated.

[0055] In existing micro-logging acquisition processes, to prevent the shock wave generated by the excitation of the seismic source from ejecting it from the wellbore, construction personnel typically need to bury the seismic source with soil after placing it into the wellbore to be excited. This is done by applying gravity to the surface of the seismic source to counteract the reaction force. To achieve the reuse of the gas explosion seismic source, the shell 21 and pressure cap 22 of the gas explosion seismic source provided in this application embodiment are both made of explosion-proof materials by welding, meaning that the shell 21 and pressure cap 22 will not be destroyed by the explosion of high-pressure flammable gas. Since burying the gas explosion seismic source with soil after placing it into the wellbore to be excited makes it difficult for construction personnel to remove the reusable shell 21 and pressure cap 22 from the wellbore after the gas explosion seismic source has been excited, this application embodiment also provides a well-killing device 301. The well-killing device 301 can be considered as a component consisting of a lower cylindrical section and an upper pressure cap. The lower cylindrical part is fitted onto the ignition and gas injection device 1 of the gas explosion source, and the lower end face of the cylinder is in contact with the upper surface of the housing 21. A circular hole is provided at the connection between the upper end cap and the lower end cylinder. The diameter of this circular hole is larger than the diameter of the threaded through hole provided on the upper end face of the housing 21, so that when the well-killing device 301 is placed on the surface of the housing 21, the ignition and gas injection device 1 of the gas explosion source can pass through the well-killing device 301. The edge of the upper end cap is in contact with the wellhead of the well to be activated, so that the construction personnel can apply gravity to the surface of the gas explosion source by compacting sandbags on the upper end cap of the well-killing device 301 to counteract the reaction force formed by the shock wave generated by the activation.

[0056] Figure 4 This is a schematic diagram illustrating the implementation environment of a seismic data acquisition method provided in this application embodiment. See also... Figure 4 The implementation environment includes: terminal 401, explosive device 402, gas explosion source 403, seismic data acquisition instrument 404, and detector 405. Terminal 401 can be connected to explosive device 402 via wireless or wired network, and explosive device 402 can be connected to seismic data acquisition instrument via wireless or wired network.

[0057] The terminal 401 is at least one of a smartphone, desktop computer, laptop, or tablet computer. The terminal 401 has an application installed, allowing construction personnel to view the operation of the detonator 402, such as its connection to the gas explosion source. Personnel can also send control commands to the detonator 402 via the application to instruct it to perform corresponding operations. The detonator 402 controls the detonation of the gas explosion source 403; that is, by connecting to the ignition wire 11 of the gas explosion source 403, the detonator 402 can control the ignition wire 11 to generate an electric spark, thereby igniting the high-pressure combustible gas stored in the gas storage device of the gas explosion source 403. The seismic data acquisition instrument 404 receives, amplifies, digitizes, and stores seismic wave signals from the detector 405. These seismic wave signals contain information about the underground geological structure; by further processing and analyzing the received seismic wave signals, the structure and lithology of the underground strata can be inferred.

[0058] Optionally, the seismic data acquisition method provided in this application embodiment can be executed by the terminal 401 alone, or it can be executed interactively by the terminal 401, the explosion machine 402, and the seismic data acquisition instrument 404.

[0059] In some embodiments, when the terminal 401 executes the seismic data acquisition method independently, the terminal 401 can run an application offline. This application can send control commands to the detonator 402, instructing it not only to detonate the gas explosion source 403, but also to send acquisition signals to the seismic data acquisition instrument 404, enabling the seismic data acquisition instrument 404 to perform synchronous seismic data acquisition, that is, to begin receiving seismic wave signals acquired by the detector 405 simultaneously with the detonation of the gas explosion source 403.

[0060] In some embodiments, when the terminal 401, the detonator 402, and the seismic data acquisition instrument 404 interactively execute the seismic data acquisition method, and when a control command is sent to the detonator 402 via the application program of the terminal 401, the detonator 402 can, based on the control command, control the ignition wire 11 connected to the detonator 402 to generate an electric spark, and can also send an acquisition signal to the seismic data acquisition instrument 404. After receiving the acquisition signal, the seismic data acquisition instrument 404 can perform synchronous seismic data acquisition, that is, it can start receiving the seismic wave signal acquired by the detector 405 at the same time as the gas explosion source 403 is detonated.

[0061] It should be noted that in the following embodiments, the method for acquiring seismic data provided in the embodiments of this application is described using a terminal executing the method alone.

[0062] Figure 5This is a flowchart of a seismic data acquisition method provided in an embodiment of this application. This embodiment is executed by a terminal as an example. (See also...) Figure 5 The method includes:

[0063] 501. In the case where the gas explosion source in the above embodiment has been placed in the well hole to be activated, the detonator connected to the ignition wire 11 of the gas explosion source is controlled to send an ignition signal to the ignition wire 11. The ignition signal is used to instruct the ignition wire 11 to generate an electric spark to ignite the high-pressure combustible gas in the gas storage device 2 of the gas explosion source.

[0064] In this embodiment, when using a gas-explosion seismic source to acquire micrologging data, the construction personnel need to drill according to the micrologging construction design. The micrologging construction involves dual-well construction: a geophone is placed in one well, and a gas-explosion seismic source is placed in the other well, thus achieving in-well excitation and in-well reception. Accordingly, the construction personnel, according to the micrologging construction design, first determine the location of the seismic source point and the receiving point, and then carry out drilling operations based on parameters such as the designed well depth and well diameter. Then, the gas-explosion seismic source is placed in the wellbore at the seismic source point, the geophone is placed in the wellbore at the receiving point, and a well-killing device is placed on the surface of the gas-explosion seismic source, and the well-killing device is compacted with sandbags, soil, or other heavy objects. The gas explosion seismic source utilizes a high-temperature, high-pressure mixture of oxygen and combustible gas to generate seismic waves, enabling directional excitation of strong longitudinal wave energy. This allows it to replace detonators or explosives in micro-logging operations. Furthermore, both the casing 21 and the pressure cap 22 of the gas explosion seismic source are constructed from explosion-proof materials, allowing for reuse and thus saving on micro-logging acquisition costs and improving acquisition efficiency. After the aforementioned preparations are completed, in response to the ignition operation performed by the construction personnel, the terminal sends a first control command to the detonator, instructing it to send an ignition signal to the ignition wire 11 of the gas explosion seismic source, thereby detonating the gas explosion seismic source.

[0065] 502. In the event of the detonation of high-pressure combustible gas, control the detonator to send an acquisition signal to the seismic data acquisition instrument. The acquisition signal is used to instruct the seismic data acquisition instrument to start acquiring seismic data. The seismic data acquisition instrument is used to receive seismic wave signals from the geophone located in the receiving well.

[0066] In this embodiment, when the high-pressure combustible gas in the gas storage device 2 is ignited by an electric spark generated by the ignition wire 11, the high-pressure, high-temperature mixed gas generated by the explosion can shear off the fastening screws 23 connecting the housing 21 and the pressure cap 22 of the gas explosion source. With the fastening screws 23 sheared off, the pressure cap 22 will pop out due to the impact of the high-pressure, high-temperature mixed gas, causing the gas to rush out from inside the housing 21 and impact the bottom of the well to generate seismic waves. Correspondingly, the terminal can send a second control command to the explosion machine simultaneously with the detonation of the gas explosion source, instructing the explosion machine to transmit the acquisition signal (pulse current signal) to the seismic data acquisition instrument via the wireless signal transmission module, facilitating the simultaneous micro-logging data acquisition by the seismic data acquisition instrument.

[0067] This application provides a method for acquiring seismic data. By using a gas storage device consisting of a shell and a pressure cap made of explosion-proof material to form a gas explosion source, the gas storage device can not only be ignited by an electric spark generated by an ignition wire, causing the high-temperature and high-pressure gas generated by the explosion to shear off the fastening screws connecting the shell and the pressure cap, allowing the gas rushing out of the shell to impact the bottom of the well and generate seismic waves, but also, after the seismic waves are generated, the shell and pressure cap of the gas explosion source can be removed from the wellhead. By reinstalling the fastening screws and the ignition and gas injection device, the gas explosion source can be reused, thereby greatly reducing the operating cost of seismic exploration and improving construction efficiency.

[0068] Figure 6 This is a schematic diagram of the structure of a seismic data acquisition device provided in an embodiment of this application. See also... Figure 6 The device includes: a first control module 601 and a second control module 602.

[0069] The first control module 601 is used to control the detonator connected to the ignition wire 11 of the gas explosion source to send a detonation signal to the ignition wire 11 when the gas explosion source in the above embodiment has been placed into the well hole to be activated. The detonation signal is used to instruct the ignition wire 11 to generate an electric spark to detonate the high-pressure combustible gas in the gas storage device 2 of the gas explosion source.

[0070] The second control module 602 is used to control the detonator to send an acquisition signal to the seismic data acquisition instrument when the high-pressure combustible gas is detonated. The acquisition signal is used to instruct the seismic data acquisition instrument to start acquiring seismic data. The seismic data acquisition instrument is used to receive seismic wave signals from the geophone located in the receiving well.

[0071] This application provides a seismic data acquisition device. The device utilizes a gas storage unit comprised of a casing and a pressure cap made of explosion-proof material to form a gas explosion source. This allows the gas storage unit to be ignited by an electric spark from an ignition wire, which then generates high-temperature, high-pressure gas that shears off the fastening screws connecting the casing and pressure cap. This enables the gas ejected from the casing to impact the bottom of the well and generate seismic waves. Furthermore, after the seismic waves are generated, the casing and pressure cap of the gas explosion source can be removed from the wellhead. By reinstalling the fastening screws and the ignition and gas injection device, the gas explosion source can be reused, significantly reducing the operational costs of seismic exploration and improving construction efficiency.

[0072] It should be noted that the seismic data acquisition device provided in the above embodiments is only an example of the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the computer device can be divided into different functional modules to complete all or part of the functions described above. In addition, the seismic data acquisition device and the seismic data acquisition method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0073] This application also provides a computer device, which includes a processor and a memory. The memory stores at least one computer program, which is loaded and executed by the processor to implement the earthquake data acquisition method of the above embodiments.

[0074] Taking computer devices as terminals as an example, Figure 7 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application.

[0075] The terminal 700 includes a processor 701 and a memory 702.

[0076] Processor 701 may include one or more processing cores, such as a quad-core processor, an octa-core processor, etc. Processor 701 may be implemented using at least one hardware form selected from DSP (Digital Signal Processing), FPGA (Field Programmable Gate Array), and PLA (Programmable Logic Array). Processor 701 may also include a main processor and a coprocessor. The main processor, also known as a CPU (Central Processing Unit), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, processor 701 may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the screen. In some embodiments, processor 701 may also include an AI (Artificial Intelligence) processor, which is used to handle computational operations related to machine learning.

[0077] The memory 702 may include one or more computer-readable storage media, which may be non-transitory. The memory 702 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the non-transitory computer-readable storage media in the memory 702 are used to store at least one computer program, which is used by the processor 701 to implement the seismic data acquisition method provided in the method embodiments of this application.

[0078] In some embodiments, the terminal 700 may also optionally include a peripheral device interface 703 and at least one peripheral device. The processor 701, memory 702, and peripheral device interface 703 can be connected via a bus or signal line. Each peripheral device can be connected to the peripheral device interface 703 via a bus, signal line, or circuit board. Optionally, the peripheral device includes at least one of a radio frequency circuit 704, a display screen 705, a camera assembly 706, an audio circuit 707, and a power supply 708.

[0079] Peripheral device interface 703 can be used to connect at least one I / O (Input / Output) related peripheral device to processor 701 and memory 702. In some embodiments, processor 701, memory 702 and peripheral device interface 703 are integrated on the same chip or circuit board; in some other embodiments, any one or two of processor 701, memory 702 and peripheral device interface 703 can be implemented on separate chips or circuit boards, which is not limited in this embodiment.

[0080] The radio frequency (RF) circuit 704 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The RF circuit 704 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuit 704 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals back into electrical signals. Optionally, the RF circuit 704 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, etc. The RF circuit 704 can communicate with other devices through at least one wireless communication protocol. This wireless communication protocol includes, but is not limited to: metropolitan area networks (MANs), various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks (WLANs), and / or WiFi (Wireless Fidelity) networks. In some embodiments, the RF circuit 704 may also include circuitry related to NFC (Near Field Communication), which is not limited in this application.

[0081] Display screen 705 is used to display a UI (User Interface). This UI may include graphics, text, icons, videos, and any combination thereof. When display screen 705 is a touch display screen, it also has the ability to collect touch signals on or above its surface. These touch signals can be input as control signals to processor 701 for processing. In this case, display screen 705 can also be used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard. In some embodiments, there may be one display screen 705, disposed on the front panel of terminal 700; in other embodiments, there may be at least two display screens 705, disposed on different surfaces of terminal 700 or in a folded design; in other embodiments, display screen 705 may be a flexible display screen, disposed on a curved or folded surface of terminal 700. Furthermore, display screen 705 may be configured as a non-rectangular irregular shape, i.e., a non-rectangular screen. Display screen 705 may be made of materials such as LCD (Liquid Crystal Display) or OLED (Organic Light-Emitting Diode).

[0082] The camera assembly 706 is used to acquire images or videos. Optionally, the camera assembly 706 includes a front-facing camera and a rear-facing camera. The front-facing camera is disposed on the front panel of the terminal 700, and the rear-facing camera is disposed on the back of the terminal 700. In some embodiments, there are at least two rear-facing cameras, which are any one of a main camera, a depth-sensing camera, a wide-angle camera, and a telephoto camera, to achieve background blurring by fusion of the main camera and the depth-sensing camera, panoramic shooting by fusion of the main camera and the wide-angle camera, VR (Virtual Reality) shooting, or other fusion shooting functions. In some embodiments, the camera assembly 706 may also include a flash. The flash may be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cool light flash, which can be used for light compensation at different color temperatures.

[0083] The audio circuit 707 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, converting the sound waves into electrical signals that are input to the processor 701 for processing, or input to the radio frequency circuit 704 for voice communication. For stereo sound acquisition or noise reduction purposes, multiple microphones may be used, each located at a different part of the terminal 700. The microphone may also be an array microphone or an omnidirectional microphone. The speaker is used to convert the electrical signals from the processor 701 or the radio frequency circuit 704 into sound waves. The speaker may be a conventional diaphragm speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can convert electrical signals not only into audible sound waves but also into inaudible sound waves for purposes such as distance measurement. In some embodiments, the audio circuit 707 may also include a headphone jack.

[0084] Power supply 708 is used to power the various components in terminal 700. Power supply 708 can be AC ​​power, DC power, a disposable battery, or a rechargeable battery. When power supply 708 includes a rechargeable battery, the rechargeable battery can support wired charging or wireless charging. The rechargeable battery can also be used to support fast charging technology.

[0085] In some embodiments, the terminal 700 further includes one or more sensors 709. The one or more sensors 709 include, but are not limited to: an accelerometer 710, a gyroscope 711, a pressure sensor 712, an optical sensor 713, and a proximity sensor 714.

[0086] Accelerometer 710 can detect the magnitude of acceleration along the three coordinate axes of a coordinate system established by terminal 700. For example, accelerometer 710 can be used to detect the components of gravitational acceleration along the three coordinate axes. Processor 701 can control display screen 705 to display the user interface in either a landscape or portrait view based on the gravitational acceleration signal acquired by accelerometer 710. Accelerometer 710 can also be used for games or for acquiring user motion data.

[0087] The gyroscope sensor 711 can detect the orientation and rotation angle of the terminal 700. The gyroscope sensor 711, in conjunction with the accelerometer sensor 710, can collect 3D motion data from the user on the terminal 700. Based on the data collected by the gyroscope sensor 711, the processor 701 can perform the following functions: motion sensing (e.g., changing the UI based on the user's tilt), image stabilization during shooting, game control, and inertial navigation.

[0088] The pressure sensor 712 can be disposed on the side bezel of the terminal 700 and / or the lower layer of the display screen 705. When the pressure sensor 712 is disposed on the side bezel of the terminal 700, it can detect the user's grip signal on the terminal 700, and the processor 701 can perform left / right hand recognition or quick operation based on the grip signal collected by the pressure sensor 712. When the pressure sensor 712 is disposed on the lower layer of the display screen 705, the processor 701 can control the operable controls on the UI interface based on the user's pressure operation on the display screen 705. The operable controls include at least one of button controls, scroll bar controls, icon controls, and menu controls.

[0089] An optical sensor 713 is used to collect ambient light intensity. In one embodiment, the processor 701 can control the display brightness of the display screen 705 based on the ambient light intensity collected by the optical sensor 713. Optionally, when the ambient light intensity is high, the display brightness of the display screen 705 is increased; when the ambient light intensity is low, the display brightness of the display screen 705 is decreased. In another embodiment, the processor 701 can also dynamically adjust the shooting parameters of the camera assembly 706 based on the ambient light intensity collected by the optical sensor 713.

[0090] A proximity sensor 714, also known as a distance sensor, is installed on the front panel of the terminal 700. The proximity sensor 714 is used to detect the distance between the user and the front of the terminal 700. In one embodiment, when the proximity sensor 714 detects that the distance between the user and the front of the terminal 700 is gradually decreasing, the processor 701 controls the display screen 705 to switch from a screen-on state to a screen-off state; when the proximity sensor 714 detects that the distance between the user and the front of the terminal 700 is gradually increasing, the processor 701 controls the display screen 705 to switch from a screen-off state to a screen-on state.

[0091] Those skilled in the art will understand that Figure 7 The structure shown does not constitute a limitation on terminal 700, and may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0092] This application also provides a computer-readable storage medium storing at least one computer program, which is loaded and executed by a processor to implement the earthquake data acquisition method of the above embodiments.

[0093] This application also provides a computer program product, including a computer program loaded and executed by a processor to implement the earthquake data acquisition method as described in the above embodiments.

[0094] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0095] The above are merely optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present application should be included within the protection scope of the present application.

Claims

1. A gas explosion vibration source, characterized in that, The gas explosion source includes: an ignition and gas injection device (1) and a gas storage device (2); The ignition and gas injection device (1) includes an ignition wire (11) and a gas injection pipe (12), and a one-way valve (13) is provided on the gas injection pipe (12); The gas storage device (2) includes a housing (21), a pressure cap (22), and fastening screws (23). The housing (21) and the pressure cap (22) are both made of explosion-proof material by welding. The upper end face of the housing (21) is connected to the ignition and gas injection device (1) through a threaded through hole. The lower end face of the housing (21) is connected to the pressure cap (22) through the fastening screws (23). A sealed cavity is formed between the housing (21) and the pressure cap (22) for storing high-pressure combustible gas.

2. The gas explosion vibration source according to claim 1, characterized in that, The lower end face of the housing (21) is engraved with an annular groove, which is used to install a seal (24) to prevent gas leakage at the connection between the housing (21) and the cover (22).

3. The gas explosion vibration source according to claim 1, characterized in that, The upper end face of the housing (21) is connected to lifting rings (25) on the left and right sides respectively. The lifting rings (25) are used to connect lifting ropes so that the gas explosion source can be put into the well hole to be excited through the lifting ropes, and the housing (21) can be taken out from the well hole through the lifting ropes after the gas explosion source is excited.

4. The gas explosion vibration source according to claim 1, characterized in that, The one-way valve (13) is used to open when high-pressure combustible gas is injected into the gas storage device (2) from the gas injection pipe (12) and to close when high-pressure combustible gas flows back.

5. The gas explosion vibration source according to claim 1, characterized in that, The pressure cap (22) has a guide stop for inserting into the interior of the housing (21) so that the pressure cap (22) fits tightly against the inner wall of the housing (21).

6. The gas explosion vibration source according to claim 1, characterized in that, The fastening screw (23) is made of non-explosion-proof material and is prone to breakage under high pressure impact.

7. The gas explosion vibration source according to claim 1, characterized in that, When the gas explosion source is placed into the well to be activated, the cap (22) of the gas storage device (2) is in contact with the bottom of the well to be activated, and a well kill device is placed on the surface of the housing (21) of the gas storage device (2). The lower end of the well kill device is cylindrical and is in contact with the upper surface of the housing (21), and the upper end of the well kill device is planar and is in contact with the wellhead of the well to be activated.

8. A method for acquiring seismic data, characterized in that, The method includes: When the gas explosion source according to any one of claims 1-7 has been placed in the well to be activated, the detonator connected to the ignition wire (11) of the gas explosion source is controlled to send an ignition signal to the ignition wire (11), the ignition signal being used to instruct the ignition wire (11) to generate an electric spark to ignite the high-pressure combustible gas in the gas storage device (2) of the gas explosion source. In the event that the high-pressure combustible gas is detonated, the detonator is controlled to send an acquisition signal to the seismic data acquisition instrument. The acquisition signal is used to instruct the seismic data acquisition instrument to start acquiring seismic data. The seismic data acquisition instrument is used to receive seismic wave signals from the geophone located in the receiving well.

9. A seismic data acquisition device, characterized in that, The device includes: The first control module is used to control the detonator connected to the ignition wire (11) of the gas explosion source when the gas explosion source according to any one of claims 1-7 has been placed in the well hole to be activated, and to send a detonation signal to the ignition wire (11). The detonation signal is used to instruct the ignition wire (11) to generate an electric spark to detonate the high-pressure combustible gas in the gas storage device (2) of the gas explosion source. The second control module is used to control the detonator to send an acquisition signal to the seismic data acquisition instrument when the high-pressure combustible gas is detonated. The acquisition signal is used to instruct the seismic data acquisition instrument to start acquiring seismic data. The seismic data acquisition instrument is used to receive seismic wave signals from the geophone located in the receiving well.

10. A computer device, characterized in that, The computer device includes a processor and a memory, the memory storing at least one computer program, which is loaded and executed by the processor to implement the seismic data acquisition method as described in claim 8.

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