CN-122018386-A - Seismic source system, control method and control device thereof, storage medium and electronic equipment

Abstract

The invention belongs to the technical field of controllable vibration sources, and particularly provides a vibration source system, a control method, a control device, a storage medium and electronic equipment thereof, wherein the vibration source system comprises a liquid source, a vibration executing part, a first servo valve, a second servo valve and a control component; the vibration executing part comprises a first hydraulic cavity and a second hydraulic cavity, the first servo valve comprises a first control port, a first liquid inlet and a first liquid outlet, the first liquid inlet is communicated with a liquid source, the first liquid outlet is communicated with the first hydraulic cavity, the second servo valve comprises a second control port, a second liquid inlet and a second liquid outlet, the second liquid inlet is communicated with the liquid source, the second liquid outlet is communicated with the second hydraulic cavity, the control assembly is electrically connected with the first control port and the second control port, and the control assembly is used for controlling the opening degrees of the first servo valve and the second servo valve. The invention adopts a double-valve body structure, reduces the distortion degree of odd harmonics, improves the identification precision of deep geological structures, and provides technical support for high-resolution oil and gas reservoir exploration.

Inventors

• LIANG FUHE
• WU YONGSHENG
• FAN HUIWEN
• Qi Chongwei
• SUN WEI
• MIAO JING

Assignees

• 中国石油集团东方地球物理勘探有限责任公司
• 中国石油天然气集团有限公司

Dates

Publication Date

20260512

Application Date

20251218

Claims (15)

1. 1. A seismic source system (100), comprising: A liquid source; A shock executing portion (110), the shock executing portion (110) including a first hydraulic chamber (114) and a second hydraulic chamber (116); a first servo valve (130), the first servo valve (130) comprising a first control port (132), a first liquid inlet and a first liquid outlet, the first liquid inlet being in communication with the liquid source, the first liquid outlet being in communication with the first hydraulic chamber (114); a second servo valve (140), the second servo valve (140) comprising a second control port (142), a second liquid inlet and a second liquid outlet, the second liquid inlet being in communication with the liquid source, the second liquid outlet being in communication with the second hydraulic chamber (116); And a control assembly (150) electrically connected with the first control port (132) and the second control port (142), wherein the control assembly (150) is used for controlling the opening degree of the first servo valve (130) and the second servo valve (140).
2. 2. The seismic source system (100) of claim 1, wherein the first servo valve (130) further comprises: a first motor (134), the first motor (134) being electrically connected with the first control port (132); The first valve core (136) is arranged in a first valve cavity (138) of the first servo valve (130) and is positioned between the first liquid inlet and the first liquid outlet; The first valve core (136) is connected with the first motor (134), and the first motor (134) can drive the first valve core (136) to move under the control of the first control port (132) so as to change the opening degree of the first servo valve (130).
3. 3. The seismic source system (100) of claim 1, wherein the second servo valve (140) further comprises: A second motor (144), the second motor (144) being electrically connected with the second control port (142); The second valve core (146) is arranged in a second valve cavity (148) of the second servo valve (140) and is positioned between the second liquid inlet and the second liquid outlet; The second valve core (146) is connected with the second motor (144), and the second motor (144) can drive the second valve core (146) to move under the control of the second control port (142) so as to change the opening degree of the second servo valve (140).
4. 4. The seismic source system (100) of claim 1, wherein the plurality of seismic sources are configured to generate a plurality of seismic sources, The first servo valve (130) and the second servo valve (140) are symmetrically distributed with respect to the vibration executing portion (110).
5. 5. The seismic source system (100) of any of claims 1-4, wherein the seismic actuation section (110) comprises: A weight (112), wherein the first hydraulic cavity (114) and the second hydraulic cavity (116) are arranged in the weight (112); and the plate body (122) is connected with the heavy hammer (112).
6. 6. The seismic source system (100) of claim 5, wherein the seismic source system (100) further comprises: The detection component is used for detecting the displacement of the heavy hammer (112), the acceleration of the plate body (122), the valve core displacement of the first servo valve (130) and the valve core displacement of the second servo valve (140); The control assembly (150) is electrically connected with the detection assembly, and the control assembly (150) is further used for adjusting the opening degrees of the first servo valve (130) and the second servo valve (140) according to the displacement of the heavy hammer (112), the acceleration of the plate body (122), the valve core displacement of the first servo valve (130) and the valve core displacement of the second servo valve (140).
7. 7. The seismic source system (100) of claim 6, wherein the detection assembly comprises: a first displacement sensor (170) disposed on the weight (112) for detecting the displacement of the weight (112); a first acceleration sensor (172) provided to the weight (112) for detecting an acceleration of the weight (112); and a second acceleration sensor (178) provided to the plate body (122) and configured to detect acceleration of the plate body (122).
8. 8. The method of controlling a seismic source system of claim 7, wherein the detection assembly further comprises: A second displacement sensor (180) provided to the first servo valve (130) and configured to detect a spool displacement of the first servo valve (130); And a third displacement sensor (182) provided to the second servo valve (140) and configured to detect the displacement of the valve element of the second servo valve (140).
9. 9. The seismic source system (100) of claim 8, wherein the control assembly (150) comprises: a controller (152); A junction box (154), the junction box (154) comprising a first interface (155), a second interface (156), a third interface (157), a fourth interface (158), a fifth interface (160), a sixth interface (162), and a seventh interface (164); The first interface (155) is electrically connected with the controller (152), the second interface (156) is electrically connected with the first control port (132), the third interface (157) is electrically connected with the second control port (142), the fourth interface (158) is electrically connected with the first displacement sensor (170), the fifth interface (160) is electrically connected with the first acceleration sensor (172), the sixth interface (162) is electrically connected with the second acceleration sensor (178), and the seventh interface (164) is electrically connected with the second displacement sensor (180) and the third displacement sensor (182).
10. 10. A method of controlling a source system according to any one of claims 1 to 9, the control method of the seismic source system is characterized by comprising the following steps: acquiring a seismic source exploration requirement; generating a first driving signal and a second driving signal according to the seismic source exploration requirement; and controlling the opening degree of the first servo valve according to the first driving signal, and controlling the opening degree of the second servo valve according to the second driving signal.
11. 11. The method of controlling a seismic source system of claim 10, wherein the method of controlling a seismic source system further comprises: Acquiring an operation parameter; Acquiring a first adjusting signal and a second adjusting signal according to the operation parameters; And controlling the opening degree of the first servo valve according to the first adjusting signal, and controlling the opening degree of the second servo valve according to the second adjusting signal.
12. 12. The method of controlling a seismic source system of claim 11, wherein, The operation parameters comprise valve core displacement of the first servo valve, valve core displacement of the second servo valve, displacement of the heavy hammer, acceleration of the heavy hammer and acceleration of the plate body.
13. 13. A control device for a seismic source system according to any one of claims 1 to 9, comprising: The first processing unit is used for acquiring the seismic source exploration requirements; the second processing unit is used for generating a first driving signal and a second driving signal according to the seismic source exploration requirement; And the control unit is used for controlling the opening degree of the first servo valve according to the first driving signal and controlling the opening degree of the second servo valve according to the second driving signal.
14. 14. A storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of controlling a seismic source system according to any of claims 10 to 12.
15. 15. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the method of controlling a seismic source system according to any one of claims 10 to 12.

Description

Seismic source system, control method and control device thereof, storage medium and electronic equipment Technical Field The invention belongs to the technical field of controllable seismic sources, and particularly relates to a seismic source system, a control method and device thereof, a storage medium and electronic equipment. Background In the related art, the quality of the output force waveform of the seismic source system, which is used as a key device in geophysical exploration, directly determines the accuracy of the seismic data. At present, the traditional seismic source system generally adopts an electrohydraulic control architecture of a single servo valve, an inherent nonlinear relation exists between the flow rate and the load pressure difference of the servo valve, and the seismic source system can generate remarkable harmonic distortion in the working process, particularly under a high-load working condition, so that the signal-to-noise ratio and the fidelity of an output signal are seriously deteriorated, and the identification capability of a deep geological structure is further affected. Disclosure of Invention In a first aspect, an embodiment of the invention provides a seismic source system, which comprises a liquid source, a vibration executing part, a first servo valve, a second servo valve and a control assembly, wherein the vibration executing part comprises a first hydraulic cavity and a second hydraulic cavity, the first servo valve comprises a first control port, a first liquid inlet and a first liquid outlet, the first liquid inlet is communicated with the liquid source, the first liquid outlet is communicated with the first hydraulic cavity, the second servo valve comprises a second control port, a second liquid inlet and a second liquid outlet, the second liquid inlet is communicated with the liquid source, the second liquid outlet is communicated with the second hydraulic cavity, the control assembly is electrically connected with the first control port and the second control port, and the control assembly is used for controlling the opening degrees of the first servo valve and the second servo valve. In a second aspect, an embodiment of the present invention provides a control method of a seismic source system, for use in a seismic source system according to the first aspect, where the control method of the seismic source system includes obtaining a seismic source exploration requirement, generating a first driving signal and a second driving signal according to the seismic source exploration requirement, controlling an opening of a first servo valve according to the first driving signal, and controlling an opening of a second servo valve according to the second driving signal. In a third aspect, an embodiment of the present invention provides a control apparatus for a seismic source system, for use in a seismic source system as in the first aspect, where the control apparatus for a seismic source system includes a first processing unit, a second processing unit, and a control unit. The control unit is used for controlling the opening degree of the first servo valve according to the first driving signal and controlling the opening degree of the second servo valve according to the second driving signal. In a fourth aspect, embodiments of the present invention provide a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of controlling a seismic source system of the second aspect. In a fifth aspect, the present invention provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for controlling a seismic source system of the second aspect when executing the computer program. The beneficial effects brought by the invention are as follows: According to the scheme, the seismic source system comprises a hydraulic source, a vibration executing part, a first servo valve, a second servo valve and a control assembly. The fluid source is the fluid supply portion of the seismic source system for providing a continuous stable hydraulic oil. The vibration executing part is a power output part of the vibration source system, and the inside of the vibration executing part comprises two independent first hydraulic cavities and a second hydraulic cavity, wherein the first hydraulic cavity is an upper cavity of the vibration executing part, and the second hydraulic cavity is a lower cavity of the vibration executing part. The first servo valve is one of core control elements of the seismic source system, and comprises a first control port, a first liquid inlet and a first liquid outlet, wherein the first control port can receive an electric control signal, the first liquid inlet is communicated with a liquid source to obtain hydraulic oil, and the first liquid outlet is communicated with a