Automatic transverse control device for pulling cable array in ocean

A towed linear array and lateral control technology, which is applied in the direction of feedback control and seismic signal receiver, can solve the problems of towed cables, unsmooth seismic acquisition operations, and uncontrollable conditions at the tail end of the towed cables. The effect of good elasticity, light weight, high strength and rigidity
CN103760596AInactive Publication Date: 2014-04-30CHINA NAT OFFSHORE OIL CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2014-04-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an automatic transverse control device for pulling a cable array in ocean. The device comprises a shell, an acoustic receiving transducer unit, a communication unit, a circuit unit, a driving unit, a wing plate unit, a power source unit and a locking unit. According to the device, sound wave signals are processed by the circuit unit to generate ranging signals, the ranging signals are sent to a cabin control chamber through the communication unit, after the ranging signals are analyzed by the cabin control chamber, current cable array information is compared with a target cable array information, the angle by which wing plates need to rotate is determined, through the communication unit, an angle instruction is sent to the driving unit through the circuit unit, and further the winging plates are driven to rotate to the set angle. The automatic transverse control device can be applied to the technical field of ocean oil seismic exploration. With the device, the distance between targets can be adjusted and controlled through the wing plate angle, and therefore the pulled cable array can be automatically adjusted and controlled in the transverse direction, cables are always acquired in a certain array shape, and smooth seismic acquisition work is guaranteed.
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Description

Technical field

[0001] The invention relates to the technical field of marine petroleum seismic exploration, in particular to an automatic lateral control device for marine drag line arrays. Background technique

[0002] At present, marine seismic exploration usually uses artificial excitation of seismic waves, and several collection streamers equipped with geophones towed behind the geophysical vessel receive the ground reflection waves. With the advancement of science and technology, the number of marine streamers used for seismic streamers is increasing. Generally, high-efficiency geophysical acquisition vessels can drag 12-16 acquisition streamers with a spacing of 50-100 meters for operation. Under normal circumstances, an extender is used at the front end of the streamer to help maintain the distance between the streamers, but the conditions at the end of the streamer cannot be controlled. Currents, sea tides and other effects may cause the end of the streamer to drift late...

Claims

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