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Seabed earthquake detection device and method

A detection device and detector technology, applied in measurement devices, seismology, geophysical measurement, etc., can solve the problems of high noise, low signal-to-noise ratio, and seismic signal distortion of submarine seismographs, and reduce equipment noise, signal-to-noise, etc. high effect

Active Publication Date: 2017-09-19
NAT DEEP SEA CENT +1
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Problems solved by technology

Compared with the deep sea, there are many particularities and difficulties in the detection of near-shallow sea bottom seismographs: (1) The sea bottom seismograph equipment and data are lost due to fishing nets; (2) The soft sediments lead to poor coupling between the bottom sea seismo Signal distortion; (3) Strong near-bottom turbulence, eddy current noise and sea surface noise make the background noise of the submarine seismograph large and the signal-to-noise ratio low

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  • Seabed earthquake detection device and method

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] The object of the present invention is to provide a kind of submarine seismic detection device and detection method, to solve the problems existing in the prior art, the submarine seismic detection device is effectively coupled with the seabed, reduces noise, improves detection effect; Convenient, save time and effort.

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention...

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Abstract

The invention discloses a seabed earthquake detection device and method. The seabed earthquake detection device is buried in seabed sediments, so the device and the seabed are coupled effectively, and seismic signals will not distort due to poor coupling. The noise of the device caused by flushing of ocean currents can be reduced effectively, and a seismic signal to noise ratio is higher. Moreover, loss risks of the device caused by fishery activities can be handled effectively. Through adoption of a releasing mechanism and a pneumatic popup mechanism, the seabed earthquake detection device can be recovered automatically, so time is saved and labor is saved. Meanwhile, a mechanical popup mechanism is adopted to further enable an earthquake detector to be quickly disengaged from a first housing, so the detector floats upwards to a water surface and is recovered.

Description

technical field [0001] The invention relates to the technical field of seismic detection, in particular to a seabed seismic detection device and a detection method. Background technique [0002] The submarine seismograph is a high-tech submarine detection technology developed in the past fifty years. Compared with the conventional multi-channel seismic technology, the submarine seismograph not only has a lower operating cost, but also has a large array length, which can receive rich information such as wide-angle reflection, wide-angle refraction P-wave and converted S-wave, etc. Research, seabed seismic monitoring, and offshore oil and gas resource exploration have been widely used. [0003] Seabed seismographs can be used both in deep seas and in shallow seas. Compared with the deep sea, there are many particularities and difficulties in the detection of near-shallow sea bottom seismographs: (1) The sea bottom seismograph equipment and data are lost due to fishing nets; ...

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Application Information

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IPC IPC(8): G01V1/38
CPCG01V1/3808G01V1/3852Y02A90/30
Inventor 刘保华裴彦良于凯本刘晨光李西双杨志国于盛齐宗乐
Owner NAT DEEP SEA CENT
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