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Seismic omnidirectional vector divergence detector

A geophone and vector technology, applied in the field of seismic omnidirectional vector divergence geophones, can solve the problem that the seismic wave field does not have divergence information detection or measurement functions.

Active Publication Date: 2016-03-09
PETROCHINA CO LTD
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  • Abstract
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Problems solved by technology

[0031] The invention provides a seismic omnidirectional vector divergence detector to at least solve the problem in the prior art that the seismic wave field does not have the function of divergence information detection or measurement

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  • Seismic omnidirectional vector divergence detector
  • Seismic omnidirectional vector divergence detector
  • Seismic omnidirectional vector divergence detector

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Embodiment Construction

[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0060] The present invention proposes a seismic omnidirectional vector divergence geophone, which is equal and balanced in all directions in the spatial structure, which is a structural advantage that geophones in the prior art do not have. Using this structural advantage, the seismic wave field can be realized Accurate detection of divergence information. The specific structure of the seismic omnidirectional vector divergence detector is introduce...

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Abstract

The present invention discloses a seismic omnidirectional vector divergence detector which comprises four detectors and a support structure. The support structure is used for supporting the four detectors such that the bottom surfaces of the four detectors are on four equilateral triangular faces of a regular tetrahedron respectively. The intersection of the working axis of each detector and the corresponding equilateral triangular face are at the center of the equilateral triangular face. According to the Gauss divergence formula of the field theory, a specific space motion vector detection structure is designed so as to realize the detection of the frequency, amplitude, phase, and vibration direction of a seismic wave field and especially the divergence information detection of a wave power field, and the novel seismic omnidirectional vector divergence detector technology is realized.

Description

technical field [0001] The invention relates to the technical field of geophones, in particular to a seismic omnidirectional vector divergence geophone. Background technique [0002] According to the wave theory, waves mean not only vibrations, but also the propagation of vibrations. Specifically: 1. Vibration can be decomposed into linear vibration and rotational vibration; 2. The wave field divergence drives the longitudinal wave, and the wave field curl drives the transverse wave; 3. The linear vibration is the joint action of divergence and curl, which includes both Contains transverse waves; 4. Rotation vibration is only related to curl; 5. Body curl is complete curl, and surface curl is incomplete curl. Therefore, techniques that can only detect linear vibrations cannot cleanly separate longitudinal and transverse waves. It must be a technology that can detect body curl or divergence, so that it is possible to solve pure shear waves and pure longitudinal waves. [0...

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Application Information

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IPC IPC(8): G01V1/18
CPCG01V1/18G01V1/20G01V1/184
Inventor 陈立康
Owner PETROCHINA CO LTD
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