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Ocean bottom seismograph anchor

A technology of seismograph and sinking coupling frame, which is applied in the coupling field of seabed seismograph and seabed when it is in use, and can solve the problem of submarine seismograph not working normally, overturning, unable to deploy seabed seismograph, etc. question

Inactive Publication Date: 2016-01-06
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Undersea seismographs are at risk of capsizing as they sink, causing the undersea seismometers to fail to function properly
Second, the current undersea seismograph sinking and coupling frame cannot arrange the undersea seismograph in a north-south direction
[0007] The invention proposes a sinking coupling frame for a submarine seismograph, which is used for the coupling between the submarine seismograph and the seabed. The azimuth angle of the seismograph should be as accurate as possible

Method used

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  • Ocean bottom seismograph anchor
  • Ocean bottom seismograph anchor

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Experimental program
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Embodiment approach

[0024] According to an embodiment provided by the present invention, the support cone, the platform and the seawater form an electrochemical cell, and the support cone has a negative potential as a sacrificial anode.

[0025] According to an embodiment provided by the present invention, the number of the plurality of shrouds is at least four, which are evenly arranged along the circumference of the platform, wherein the shrouds are columnar objects with a circular or triangular cross-sectional shape.

[0026] According to an embodiment provided by the present invention, the line connecting the apex of the support cone and the center of gravity of the permanent magnet is parallel to the direction of gravity.

[0027] According to an embodiment provided by the present invention, a plurality of penetrating water guiding holes are evenly provided on the platform.

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present i...

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PUM

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Abstract

The invention provides an ocean bottom seismograph anchor. The ocean bottom seismograph anchor comprises a platform, a plurality of guiding covers, a support cone, and a permanent magnet, the guiding covers are fixed under the platform, the bottom of the support cone is fixed on the platform, the peak of the support cone is used for supporting an ocean bottom seismograph, and the permanent magnet is fixed at the bottom of the ocean bottom seismograph. According to the ocean bottom seismograph anchor, the guiding covers are uniformly arranged under the platform so that the ocean bottom seismograph can keep balance in a sinking process, and the guiding covers and the ocean bottom can be well coupled; and the ocean bottom seismograph can guarantee the fixed azimuth under the effect of the geomagnetic force of the permanent magnet.

Description

technical field [0001] The invention relates to the field of seabed seismic monitoring, in particular to a sinking coupling frame for a seabed seismograph, which is suitable for coupling the seabed seismograph with the seabed when in use. Background technique [0002] A submarine seismograph is an instrument that places a seismograph on the seabed for earthquake observation. When used to observe natural earthquakes, it can help to carry out earthquake early warning and tsunami early warning, and reduce the loss of people's lives and property caused by geological disasters. Seabed seismographs can also be used in marine oil and gas resource exploration. Seismic wave signals are artificially excited, and the seabed seismograph is used for seismic wave acquisition, so as to determine the location of oil and gas reservoirs. [0003] The coupling effect between submarine seismograph and seabed is very important to the quality of seismic data. Two methods are mainly adopted at ...

Claims

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Application Information

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IPC IPC(8): G01V1/38
Inventor 张文涛李芳
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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