阅读说明：本技术 海洋地震节点的水声定位和水声检波一体化传感器 (Underwater sound positioning and underwater sound detection integrated sensor for ocean seismic node ) 是由 任文静 薛立武 王浩 袁辰 卢涛 魏启 于 2019-10-25 设计创作，主要内容包括：本发明公开了一种海洋地震节点的水声定位和水声检波一体化传感器,该传感器固定在海洋地震节点上,包括：声学压电陶瓷管、隔离层、检波压电陶瓷管；声学压电陶瓷管与一固定在海洋地震节点上的应答器电路连接,用于接收呼叫声波信号,将呼叫声波信号转换为呼叫电信号,并发送呼叫电信号至应答器电路；接收应答器电路发送的响应电信号,将响应电信号转换为响应声波信号后进行发送；检波压电陶瓷管与海洋地震节点上的采集电路连接,用于采集地震信号,并发送地震信号至采集电路；隔离层位于声学压电陶瓷管与检波压电陶瓷管之间,用于隔离声学压电陶瓷管与检波压电陶瓷管。本发明可以简化海洋地震节点的结构,提高施工作业的效率。(The invention discloses an integral sensor of underwater acoustic positioning and underwater acoustic detection of a marine seismic node, which is fixed on the marine seismic node and comprises: the acoustic piezoelectric ceramic tube, the isolation layer and the detection piezoelectric ceramic tube; the acoustic piezoelectric ceramic tube is connected with a transponder circuit fixed on a marine seismic node and used for receiving a calling sound wave signal, converting the calling sound wave signal into a calling electric signal and sending the calling electric signal to the transponder circuit; receiving a response electric signal sent by the transponder circuit, converting the response electric signal into a response sound wave signal and then sending the response sound wave signal; the detection piezoelectric ceramic tube is connected with an acquisition circuit on a marine earthquake node and used for acquiring earthquake signals and sending the earthquake signals to the acquisition circuit; the isolation layer is positioned between the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube and used for isolating the acoustic piezoelectric ceramic tube from the detection piezoelectric ceramic tube. The invention can simplify the structure of the marine seismic node and improve the efficiency of construction operation.)

1. An integrated sensor for acoustic positioning and detection of a marine seismic node, said sensor being fixed to the marine seismic node, comprising: the acoustic piezoelectric ceramic tube, the isolation layer and the detection piezoelectric ceramic tube;

the acoustic piezoelectric ceramic tube is connected with a transponder circuit fixed on a marine seismic node and used for receiving a calling sound wave signal, converting the calling sound wave signal into a calling electric signal and sending the calling electric signal to the transponder circuit; receiving a response electric signal sent by the transponder circuit, converting the response electric signal into a response sound wave signal and then sending the response sound wave signal;

the wave detection piezoelectric ceramic tube is connected with an acquisition circuit on a marine seismic node and used for acquiring seismic signals and sending the seismic signals to the acquisition circuit;

the isolation layer is located between the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube and used for isolating the acoustic piezoelectric ceramic tube from the detection piezoelectric ceramic tube.

2. The integrated sensor of claim 1 for underwater acoustic positioning and detection of marine seismic nodes, further comprising: and the transformer is used for adjusting the output impedance of the acoustic piezoelectric ceramic tube.

3. The integrated sensor for hydroacoustic positioning and hydroacoustic demodulation of a marine seismic node of claim 2, wherein the sensor further comprises: and the positioning input signal wire is used for connecting the acoustic piezoelectric ceramic tube and the input end of the transformer.

4. The integrated sensor for hydroacoustic positioning and hydroacoustic demodulation of a marine seismic node of claim 2, wherein the sensor further comprises: and the positioning output signal wire is used for connecting the output end of the transformer with the transponder circuit.

5. The integrated sensor of claim 1 for underwater acoustic positioning and detection of marine seismic nodes, further comprising: and the detection output signal wire is used for connecting the detection piezoelectric ceramic tube and the acquisition circuit.

6. The integrated sensor of claim 1 for underwater acoustic positioning and detection of marine seismic nodes, further comprising: and the sealing layer is used for sealing the acoustic piezoelectric ceramic tube, the isolation layer and the detection piezoelectric ceramic tube.

7. The integrated sensor of claim 6, wherein the material of the sealing layer comprises urethane rubber.

8. The integrated marine seismic node hydroacoustic positioning and hydroacoustic rectification sensor of claim 6 wherein said acoustic piezo ceramic tube is proximate a bottom of said seal.

9. The integrated sensor of claim 6, further comprising: a watertight frame, a top of the watertight frame connected with the marine seismic node, a bottom of the watertight frame connected with a top of the sealing layer.

10. The integrated marine seismic node hydroacoustic positioning and hydroacoustic rectification sensor of claim 9 wherein the material of said watertight frame comprises an injection molded material.

Technical Field

The invention relates to the technical field of marine geophysical exploration, in particular to an underwater acoustic positioning and underwater acoustic detection integrated sensor for a marine seismic node.

Background

In recent years, marine oil and gas resources are gradually the focus of international energy competition, and offshore oil and gas exploration is also a research hotspot in the technical field of oil and gas exploration. OBN (ocean Bottom node) marine seismic node equipment is becoming the mainstream acquisition equipment for offshore oil and gas exploration. The operation method of the equipment comprises the steps of putting the marine seismic nodes on the seabed to collect data, recovering the marine seismic nodes after collection and downloading the data.

A piezoelectric detector is installed in a full-sealing structure of a traditional marine seismic node to detect underwater acoustic signals of seabed vibration, and meanwhile, a transponder is hung on a deck of a ship manually when the marine seismic node is launched, and the transponder needs an independent sealing structure. A main control computer on the ship transmits an inquiry signal in a certain time period through a underwater acoustic transducer, a transponder mounted on a marine seismic node receives the inquiry signal and then transmits a response signal back, and the main control computer accurately positions the geodetic coordinates of the marine seismic node at the water bottom according to the inquiry signal and the response signal. However, the method of externally hanging the transponder on the deck of the ship is low in efficiency during construction operation and has potential safety hazards.

In view of the above problems, no effective solution has been proposed.

Disclosure of Invention

The embodiment of the invention provides an underwater acoustic positioning and underwater acoustic detection integrated sensor for a marine seismic node, which is used for simplifying the structure of the marine seismic node and improving the efficiency of construction operation, and the sensor is fixed on the marine seismic node and comprises the following components: the acoustic piezoelectric ceramic tube, the isolation layer and the detection piezoelectric ceramic tube;

the acoustic piezoelectric ceramic tube is connected with a transponder circuit fixed on a marine seismic node and used for receiving a calling sound wave signal, converting the calling sound wave signal into a calling electric signal and sending the calling electric signal to the transponder circuit; receiving a response electric signal sent by the transponder circuit, converting the response electric signal into a response sound wave signal and then sending the response sound wave signal;

the detection piezoelectric ceramic tube is connected with the acquisition circuit on the marine earthquake node and used for acquiring earthquake signals and sending the earthquake signals to the acquisition circuit;

and the isolation layer is positioned between the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube and is used for isolating the acoustic piezoelectric ceramic tube from the detection piezoelectric ceramic tube.

The embodiment of the invention comprises the following steps: the acoustic piezoelectric ceramic tube converts the calling sound wave signal into a calling electric signal and sends the calling electric signal to the responder circuit, and the response electric signal sent by the responder circuit is converted into a response sound wave signal and then sent, so that the signal conversion in the marine seismic node positioning process can be realized; the demodulation piezoelectric ceramic tube can accurately acquire seismic signals; the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube are integrated in one device, the size is small, and the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube can work simultaneously on the basis of simplifying the structure of a marine earthquake node; the isolation layer isolates the acoustic piezoelectric ceramic tube from the wave detection piezoelectric ceramic tube, so that the acoustic piezoelectric ceramic tube and the wave detection piezoelectric ceramic tube can be ensured not to interfere with each other, and the efficiency of marine seismic node construction operation can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:

FIG. 1 is a schematic diagram of an integrated sensor architecture for underwater acoustic positioning and detection of a marine seismic node in an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides an underwater acoustic positioning and underwater acoustic detection integrated sensor for a marine seismic node, which is used for simplifying the structure of the marine seismic node and improving the efficiency of construction operation, and the sensor is fixed on the marine seismic node and comprises the following components: the acoustic piezoelectric ceramic tube 01, the isolation layer 02 and the detection piezoelectric ceramic tube 03;

the acoustic piezoelectric ceramic tube 01 is connected with a transponder circuit fixed on a marine seismic node, and is used for receiving a calling sound wave signal, converting the calling sound wave signal into a calling electric signal and sending the calling electric signal to the transponder circuit; receiving a response electric signal sent by the transponder circuit, converting the response electric signal into a response sound wave signal and then sending the response sound wave signal;

the wave detection piezoelectric ceramic tube 03 is connected with an acquisition circuit on a marine seismic node, and is used for acquiring seismic signals and sending the seismic signals to the acquisition circuit;

and the isolation layer 02 is positioned between the acoustic piezoelectric ceramic tube 01 and the detection piezoelectric ceramic tube 03 and is used for isolating the acoustic piezoelectric ceramic tube 01 from the detection piezoelectric ceramic tube 02.

As shown in fig. 1, the present invention is achieved by: the acoustic piezoelectric ceramic tube converts the calling sound wave signal into a calling electric signal and sends the calling electric signal to the responder circuit, and the response electric signal sent by the responder circuit is converted into a response sound wave signal and then sent, so that the signal conversion in the marine seismic node positioning process can be realized; the demodulation piezoelectric ceramic tube can accurately acquire seismic signals; the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube are integrated in one device, the size is small, and the acoustic piezoelectric ceramic tube and the detection piezoelectric ceramic tube can work simultaneously on the basis of simplifying the structure of a marine earthquake node; the isolation layer isolates the acoustic piezoelectric ceramic tube from the wave detection piezoelectric ceramic tube, so that the acoustic piezoelectric ceramic tube and the wave detection piezoelectric ceramic tube can be ensured not to interfere with each other, and the efficiency of marine seismic node construction operation can be improved.