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Seabed seismic source and seabed detection system

A detection system and source technology, which is applied in seismology, measurement device, seismic signal transmission, etc., can solve the problem of marine seismic detection resolution decline, etc., and achieve the effect of improving the stratum penetration depth and avoiding energy loss.

Active Publication Date: 2021-08-17
THE FIRST INST OF OCEANOGRAPHY SOA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, solve the problem of the decline in the resolution of marine seismic detection in deep sea areas, and provide a seabed seismic source and a seabed detection system with high detection accuracy

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  • Seabed seismic source and seabed detection system
  • Seabed seismic source and seabed detection system
  • Seabed seismic source and seabed detection system

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Embodiment Construction

[0042] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0043] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear" etc. is based on the positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

[0044] It should be noted that when an element is referred to as being “disposed on”, “connected to”, or “fixed on” another element, it ca...

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Abstract

The invention provides a seabed seismic source and a seabed detection system. The seabed seismic source comprises a base which is provided with a first pressure-bearing bin, a second pressure-bearing bin and a third pressure-bearing bin; a central control unit, an underwater acoustic communication unit and a wavelet recording unit are arranged in the first pressure-bearing bin; an energy supply unit is arranged in the second pressure-bearing bin; and a seismic wave excitation unit is arranged in the third pressure-bearing bin. The seabed detection system comprises a plurality of seabed seismic sources and a seabed seismograph which are arranged at intervals. The seismic source provided by the invention is located at the seabed during working, does not need to be dragged by a survey ship for operation, does not need to be provided by the survey ship for energy, is placed at the seabed during working, can be recycled after working, and excites seismic waves at the seabed, so that energy loss caused by long-distance propagation of the excited seismic waves in seawater is avoided, and the stratum penetration depth is improved.

Description

technical field [0001] The invention relates to the technical field of marine detection, in particular to a seabed seismic source and a seabed detection system. Background technique [0002] In conventional marine seismic exploration, the acoustic wave excitation system (source 1) is usually towed on the sea surface by a survey ship, and the structure refers to figure 1 . The source system includes a towed source 1 and an indoor system. The sound waves emitted by the towed seismic source 1 propagate through the seawater and are reflected by the seabed, then are collected and collected by the ocean bottom seismograph (OBS) 2, and are further calculated and drawn by the computing system to analyze and judge the geological conditions of the seabed. [0003] The seismic detection system in the prior art has the following deficiencies: due to the use of the drag-and-drop detection method, when working in deep sea areas, the seismic wave propagation path is long, and seawater gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/22G01V1/38G01V1/18G01V1/20
CPCG01V1/226G01V1/3835G01V1/3808G01V1/18G01V1/20Y02A90/30
Inventor 裴彦良华清峰刘晨光张连成李西双闫克平刘保华
Owner THE FIRST INST OF OCEANOGRAPHY SOA