Detector tailstock for seismic exploration

A technology for seismic exploration and geophones, which is applied in the direction of seismic signal receivers, etc., can solve the problems of the influence of geophone detection signals and the inability to realize the coupling between geophones and the ground well, so as to increase the coupling area and fix the rigidity, structure Simple, easy-to-manufacture effects

Inactive Publication Date: 2007-11-14
CENT SOUTH UNIV
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Problems solved by technology

At present, in seismic exploration, it is unavoidable to place geophones on the surface of land or soft media (such as deserts, tidal flats, etc.). After the coupling conditions are improved by other methods such as lengthening the tail cone, the detection signal of the detector will be greatly affected.

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  • Detector tailstock for seismic exploration
  • Detector tailstock for seismic exploration

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Embodiment Construction

[0016] Referring to Fig. 1, Fig. 2 and Fig. 3, a spherical tail cover 2 made of aluminum alloy with high rigidity and light weight is provided at the junction of the tail cone 1 and the geophone 3, and the tail cup 2 is connected between the geophone 3 and the tail The threaded connection between the cones 1, the spherical tail cover 2 and the tail cone 1 are threaded flexible connections.

[0017] Referring to Fig. 1, Fig. 2 and Fig. 3, with the spherical tail cover 2, the length of the original tail cone 2 of the geophone 3 can be reduced, and the spherical tail cup 2 cooperates with the small tail cone 1 to fix the geophone 3 on the ground surface, increasing the The coupling area and fixed stiffness of the geophone 3, thereby directly improving the ground coupling condition of the geophone 3, thereby overcoming the deficiency of the existing geophone tail cone 1, improving the sensitivity and signal-to-noise ratio of the geophone 3, and improving the coupled geophone Accor...

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Abstract

The invention discloses a seismic geophone tailstock used in the tail cone (1) at the end of a hood. Mei enclosures installed at the tail cone (1) detector at the junctions. Mei Mei hood is a spherical enclosures (2), tail cone surface cover (4) or Globoidal tail enclosures (5), referred to the end of the hood and tail cone (1) for a fixed link, or demolition activities-connected. Cone surface or rigid spherical or Globoidal use, the quality of light made of non-magnetic material or magnetic materials. The invention overcomes the traditional detector on a single tail cone fixed the shortcomings, overcome detector loose in the desert or placement on the land, coupled conditions caused by bad signal sensitivity decrease or signal distortion effects of increased detector grounding coupling area and stiffness can be decreased detectors caused long tail cone stacking effect, thereby enhancing the sensitivity of the detector; improved detector frequency characteristics, and to improve the detection of high-frequency signals in the detection of capacity.

Description

technical field [0001] The invention relates to a ground-coupled geophone tailstock suitable for seismic exploration geophones (sensors), not only suitable for velocity geophones (sensors), but also suitable for various acceleration geophones (sensors). technical background [0002] The quality of seismic exploration results is good or bad, the first element is the quality of the detection signal, the quality of the coupling between the geophone and the surface of the medium directly affects the quality of the detection signal. At present, in seismic exploration, it is unavoidable to place geophones on the surface of land or soft media (such as deserts, tidal flats, etc.). After the coupling conditions are improved by other methods such as lengthening the tail cone, the detection signal of the detector will be greatly affected. How to improve the ground coupling condition of the geophone and ensure the frequency response characteristics of the geophone itself is an importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/18
Inventor 朱德兵
Owner CENT SOUTH UNIV
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