A marine air gun subarray controller structure and air gun source control system thereof

Abstract

The application relates to the field of a seismic source control system, in particular to a marine air gun subarray controller structure and an air gun seismic source control system. The marine air gun subarray controller structure comprises a shell, an accommodating cavity is arranged in the shell, a communication interface module is arranged in the accommodating cavity, an installation box is arranged on the outer side of the communication interface module, the installation box is connected with the shell, an underwater power supply module is arranged on one side of the communication interface module, the side wall of the side of the installation box away from the underwater power supply module is abutted against the shell, the side of the underwater power supply module away from the installation box is abutted against the shell, and the shell is pressed against the installation box and the underwater power supply module. The application has the effects of simplifying the controller structure, facilitating installation and later maintenance.

Description

Technical Field

[0001] This application relates to the field of seismic source control systems, and in particular to a marine air gun subarray controller structure and its air gun seismic source control system. Background Technology

[0002] The marine airgun seismic source control system is a crucial system for source excitation in marine oil and gas seismic exploration. The control system consists of multiple functional units, including the main unit, time synchronization unit, deck wiring unit, subarray controller, and airgun controller. It controls the airgun to excite at specific times and transmit data back at sea. The airgun subarray controller is the nerve center and command center of the airgun seismic source control system. Through high-precision timing control, reliable communication, comprehensive status monitoring, and strict safety management, it ensures that the large airgun array operates in a coordinated manner according to design requirements, generating sound source signals that meet the needs of high-precision seismic exploration. Its performance and reliability are key factors for successful marine seismic exploration.

[0003] Regarding the aforementioned technologies, the inventors believe that the air gun seismic source control systems and equipment commonly used in marine exploration are costly and complex in structure, which is not conducive to subsequent maintenance and use. Utility Model Content

[0004] To simplify the controller structure and make it easier to install and maintain, this application provides a marine air gun subarray controller structure and its air gun source control system.

[0005] This application provides a marine airgun subarray controller structure, which adopts the following technical solution: A marine air gun subarray controller structure includes a housing with an internal cavity containing a communication interface module. A mounting box is fitted around the communication interface module and connected to the housing. An underwater power supply module is located on one side of the communication interface module. The side wall of the mounting box opposite to the underwater power supply module abuts against the housing, and the side of the underwater power supply module opposite to the mounting box abuts against the housing. The housing presses the mounting box and the underwater power supply module firmly against each other.

[0006] By adopting the above technical solution, a communication interface module and an underwater power supply module are set inside the housing cavity of the shell. The underwater power supply module supplies power to the communication interface module, and the mounting box is fitted on the outside of the communication interface module to protect it. The upper cover and the lower shell press and fix the communication interface module and the underwater charging module to prevent them from moving, simplifying the controller structure and making it easy to install and maintain.

[0007] Optionally, the housing includes a lower housing, the receiving cavity is formed in the lower housing, and an upper cover is provided on one side of the lower housing, the upper cover closes the receiving cavity, and the side wall of the upper cover near the mounting box abuts against the side wall of the mounting box.

[0008] Optionally, the upper cover includes a shielding portion that shields the receiving cavity and an extension portion that extends into the receiving cavity. The side wall of the shielding portion abuts against the end wall of the lower housing, and the extension portion abuts against the inner side wall of the lower housing. A sealing assembly is provided between the upper cover and the lower housing.

[0009] Optionally, the sealing assembly includes a first sealing ring and a second sealing ring, wherein the first sealing ring is located between the shielding portion and the end wall of the lower housing, and the second sealing ring is located between the extending portion and the inner side wall of the lower housing.

[0010] Optionally, a positioning pin is fixedly connected to the end wall of the lower housing near the upper cover, and a positioning hole is provided on the upper cover relative to the positioning pin. When the upper cover is in contact with the lower housing, the positioning pin is located in the positioning hole.

[0011] Optionally, the upper cover is provided with a first threaded hole, and the lower housing is provided with a second threaded hole relative to the first threaded hole. A fixing member is inserted into the first threaded hole and the second threaded hole. The fixing member is threadedly connected to the upper cover and the lower housing.

[0012] Optionally, the first threaded hole is located on the shielding portion, and the first threaded hole is located on the side of the first sealing ring away from the center of the housing.

[0013] Optionally, the receiving cavity includes a first receiving portion and a second receiving portion. The first receiving portion is used to receive the mounting box, and the second receiving portion is used to receive the underwater power supply module. The cross-sectional area of ​​the first receiving portion is smaller than the cross-sectional area of ​​the second receiving portion. The shell forms a boss, and the underwater power supply module is fixed to the boss.

[0014] Optionally, the side wall of the housing is provided with an inflation test hole, and a sealing plug is threaded into the inflation test hole.

[0015] The air gun source control system includes the marine air gun subarray controller structure described above.

[0016] In summary, this application includes at least one of the following beneficial technical effects: The communication interface module and the underwater power supply module are installed inside the housing cavity of the shell. The underwater power supply module supplies power to the communication interface module, and the mounting box is fitted on the outside of the communication interface module to protect it. The upper cover and the lower shell press and fix the communication interface module and the underwater charging module to prevent them from moving, simplifying the controller structure and making it easy to install and maintain. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a marine air gun subarray controller and its air gun source control system according to an embodiment of this application.

[0018] Figure 2 This is a side view of a marine air gun subarray controller structure and its air gun source control system according to an embodiment of this application.

[0019] Figure 3 This is a cross-sectional view of a marine air gun subarray controller structure and its air gun source control system according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Top cover; 111. Shielding part; 112. Extension part; 113. First threaded hole; 12. Lower housing; 121. Second threaded hole; 13. Boss; 14. Fixing member; 2. Receiving cavity; 21. First receiving part; 22. Second receiving part; 3. Communication interface module; 4. Underwater power supply module; 5. Sealing assembly; 51. First sealing ring; 52. Second sealing ring. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0023] The marine airgun seismic source control system is a crucial system for source excitation in marine oil and gas seismic exploration. The control system consists of multiple functional units, including the main unit, time synchronization unit, deck wiring unit, subarray controller, and airgun controller. It controls the airgun to excite at specific times and transmit data back at sea. The airgun subarray controller is the nerve center and command center of the airgun seismic source control system. Through high-precision timing control, reliable communication, comprehensive status monitoring, and strict safety management, it ensures that the large airgun array operates in a coordinated manner according to design requirements, generating sound source signals that meet the needs of high-precision seismic exploration. Its performance and reliability are key factors for successful marine seismic exploration.

[0024] Regarding the aforementioned technologies, the inventors believe that the air gun seismic source control systems and equipment commonly used in marine exploration are costly and complex in structure, which is not conducive to subsequent maintenance and use.

[0025] To simplify the controller structure and make it easier to install and maintain, this application provides a marine air gun subarray controller structure and its air gun source control system.

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a marine airgun subarray controller structure. (Refer to...) Figure 1 A marine air gun subarray controller structure includes a housing 1, with an internal cavity 2. The housing 1 includes an upper cover 11 and a lower housing 12 disposed opposite to each other, and the upper cover 11 and the lower housing 12 are connected to each other to close the cavity 2.

[0028] The lower housing 12 has a rectangular structure, and the receiving cavity 2 includes a first receiving part 21 and a second receiving part 22. The first receiving part 21 is located on the side of the lower housing 12 away from the upper cover 11, and the second receiving part 22 is located on the side of the lower housing 12 close to the upper cover 11. The first receiving part 21 and the second receiving part 22 are connected to each other.

[0029] The cross-sectional area of ​​the first receiving part 21 is larger than that of the second receiving part 22, and the first receiving part 21 is located at the center of the second receiving part 22, such that the lower housing 12 forms a mounting boss 13 relative to the first receiving part 21 and the second receiving part 22, the boss 13 being used to position and install the device located inside the second receiving part 22.

[0030] In some embodiments, a communication interface module 3 is disposed inside the first receiving portion 21, and a mounting box is fitted around the outside of the communication interface module 3. In a specific embodiment, the mounting box is made of aluminum alloy. The mounting box is used to install and fix the communication interface module 3, and a bracket for fixing the mounting box is provided on the outer wall of the mounting box. The bracket is fixedly connected to the mounting box, and the bracket is located on the side of the mounting box near the bottom wall of the outer shell 1. The bracket and the outer shell 1 are fixedly connected to each other by bolts, thereby fixing the mounting box inside the outer shell 1 through the bracket, and then installing the communication interface module 3 inside the first receiving cavity 2 of the lower housing 12.

[0031] An underwater power supply module 4 is located inside the second accommodating cavity 2. The underwater power supply module 4 is bolted to the boss 13 of the outer shell 1, thereby fixing the underwater power supply module 4 to the outer shell 1. The underwater power supply system is used to convert the DC high voltage input from the surface power supply into pulse voltage for use by the downstream air gun module and other modules of the subarray controller. The output voltage amplitude and output on / off can be controlled by the host computer.

[0032] When the upper cover 11 is fastened onto the lower housing 12, the side wall of the upper cover 11 closest to the underwater power supply module 4 abuts against the side wall of the underwater power supply module 4, and the side of the mounting box outside the communication interface module 3 abuts against the inner side wall of the outer housing 1 opposite to the upper cover 11, and the other side of the mounting box outside the communication interface module 3 abuts against the side wall of the underwater power supply module 4. Thus, the upper cover 11 and the outer housing 1 press and fix the mounting box and the underwater power supply module 4, limiting the displacement of the mounting box and the underwater power supply module 4 inside the receiving cavity 2.

[0033] The side wall of the lower housing 12 is also provided with an inflation test hole. The inflation test hole is in communication with the interior of the receiving cavity 2 and is used for inflation testing. After the inflation test is completed, a sealing plug is installed inside the inflation test hole. The sealing plug is threadedly connected to the lower housing 12. An appropriate amount of thread sealant is applied to the threads of the sealing plug, silicone grease is applied to the sealing ring, and the torque wrench is set to 8 Nm for tightening.

[0034] The upper cover 11 includes a shielding portion 111 and an extension portion 112. The shielding portion 111 is disposed opposite to the lower housing 12 and is used to connect the upper cover 11 and the lower housing 12, and to shield the receiving cavity 2. The extension portion 112 is located on the side of the shielding portion 111 near the center of the lower housing 12, and is used to extend into the interior of the receiving cavity 2 to form a seal and limit movement.

[0035] A positioning pin is fixedly connected to the end wall of the lower housing 12 near the upper cover 11. The positioning pin is arranged along the side from the lower housing 12 toward the upper housing 1. A positioning hole is opened on the side of the upper cover 11 near the lower housing 12 relative to the positioning pin. When the lower housing 12 and the upper cover 11 are relatively close together, the positioning pin is located in the positioning hole. The connection between the upper cover 11 and the lower housing 12 is positioned by the cooperation between the positioning pin and the positioning hole.

[0036] The extension portion 112 extends into the interior of the receiving cavity 2, and the outer wall of the extension portion 112 abuts against the inner wall of the lower housing 12 relative to the second receiving portion 22. A sealing assembly 5 is provided between the upper cover 11 and the lower housing 12. The sealing assembly 5 is used to seal the connection between the upper cover 11 and the lower housing 12, reducing the entry of external media into the interior of the receiving cavity 2 through the connection gap between the upper cover 11 and the lower housing 12.

[0037] The sealing assembly 5 includes a first sealing ring 51 and a second sealing ring 52. The first sealing ring 51 is located between the shielding part 111 and the end wall of the lower housing 12, and the second sealing ring 52 is located between the outer side wall of the extension part 112 and the inner side wall of the lower housing 12.

[0038] The upper cover 11 has a first threaded hole 113 on its side wall relative to the lower housing 12, and the lower housing 12 has a second threaded hole 121 at a position relative to the first threaded hole 113. The first threaded hole 113 and the second threaded hole 121 are connected to each other. A fastener 14 is provided inside the first threaded hole 113 and the second threaded hole 121. In a specific embodiment, the fastener 14 is a bolt. One side of the fastener 14 is threaded to the upper cover 11, and the other side of the fastener 14 is fixedly connected to the lower housing 12. The upper cover 11 and the lower housing 12 are fixed relative to each other by the fastener 14. In a specific embodiment, multiple fasteners 14 are provided along the circumference of the housing 1.

[0039] The first threaded hole 113 is opposite to the shielding part 111 of the upper cover 11, and the first threaded hole 113 is located on the side of the first sealing ring 51 away from the center of the housing 1.

[0040] This application also provides an air gun source control system, including the above-mentioned marine air gun subarray controller structure.

[0041] In this application, the term "multiple" refers to at least two or more, unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be 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 application based on the specific circumstances.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A marine airgun subarray controller structure, characterized in that: The device includes a housing (1), an internal cavity (2) is provided inside the housing (1), a communication interface module (3) is provided inside the cavity (2), an installation box is provided on the outside of the communication interface module (3), the installation box is connected to the housing (1), an underwater power supply module (4) is provided on one side of the communication interface module (3), the side wall of the installation box away from the underwater power supply module (4) abuts against the housing (1), the side of the underwater power supply module (4) away from the installation box abuts against the housing (1), and the housing (1) presses against the installation box and the underwater power supply module (4).

2. The marine air gun subarray controller structure according to claim 1, characterized in that: The housing (1) includes a lower housing (12), the receiving cavity (2) is opened in the lower housing (12), and an upper cover (11) is provided on one side of the lower housing (12). The upper cover (11) closes the receiving cavity (2), and the side wall of the upper cover (11) near the mounting box abuts against the side wall of the mounting box.

3. The marine air gun subarray controller structure according to claim 2, characterized in that: The upper cover (11) includes a shielding part (111) that shields the receiving cavity (2) and an extension part (112) that extends into the receiving cavity (2). The side wall of the shielding part (111) abuts against the end wall of the lower housing (12), and the extension part (112) abuts against the inner side wall of the lower housing (12). A sealing assembly (5) is provided between the upper cover (11) and the lower housing (12).

4. The marine airgun subarray controller structure according to claim 3, characterized in that: The sealing assembly (5) includes a first sealing ring (51) and a second sealing ring (52). The first sealing ring (51) is located between the shielding part (111) and the end wall of the lower housing (12), and the second sealing ring (52) is located between the extension part (112) and the inner side wall of the lower housing (12).

5. The marine airgun subarray controller structure according to claim 2, characterized in that: A positioning pin is fixedly connected to the end wall of the lower housing (12) near the upper cover (11). The upper cover (11) has a positioning hole relative to the positioning pin. When the upper cover (11) and the lower housing (12) are in contact, the positioning pin is located in the positioning hole.

6. The marine airgun subarray controller structure according to claim 4, characterized in that: The upper cover (11) is provided with a first threaded hole (113), and the lower housing (12) is provided with a second threaded hole (121) relative to the first threaded hole (113). A fastener (14) is provided in the first threaded hole (113) and the second threaded hole (121). The fastener (14) is threadedly connected to the upper cover (11) and the fastener (14) is threadedly connected to the lower housing (12).

7. The marine airgun subarray controller structure according to claim 6, characterized in that: The first threaded hole (113) is located on the shielding part (111), and the first threaded hole (113) is located on the side of the first sealing ring (51) away from the center of the housing (1).

8. The marine airgun subarray controller structure according to claim 1, characterized in that: The receiving cavity (2) includes a first receiving part (21) and a second receiving part (22). The first receiving part (21) is used to receive the mounting box, and the second receiving part (22) is used to receive the underwater power supply module (4). The cross-sectional area of ​​the first receiving part (21) is smaller than the cross-sectional area of ​​the second receiving part (22). The housing (1) forms a boss (13), and the underwater power supply module (4) is fixed to the boss (13).

9. The marine airgun subarray controller structure according to claim 1, characterized in that: The side wall of the housing (1) is provided with an inflation test hole, and a sealing plug is threaded into the inflation test hole.

10. An air gun vibration source control system, characterized in that, Includes the marine air gun subarray controller structure as described in any one of claims 1 to 9.

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