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
CN107179554AActive Publication Date: 2017-09-19NAT DEEP SEA CENT +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NAT DEEP SEA CENT
Publication Date
2017-09-19

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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.
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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; ...

Claims

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