Survey method and device for buried-hill crevice distribution

A detection method and technology for cracks, applied in seismic signal processing, seismic signal receivers, etc., can solve the problem of low accuracy of crack distribution

Inactive Publication Date: 2013-11-20
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] In view of this, the present invention provides a method and device for surveying fracture distribution in buried hills to solve the technical problem of low accuracy of fracture distribution obtained by fracture distribution survey technology in the prior art

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  • Survey method and device for buried-hill crevice distribution
  • Survey method and device for buried-hill crevice distribution
  • Survey method and device for buried-hill crevice distribution

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Embodiment Construction

[0063] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of embodiments of the present invention, but not all embodiments. 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.

[0064] At present, the relatively mature fracture survey and analysis methods mainly include the following: field outcrop observation, macroscopic and microscopic observation of core fractures, production dynamic observation, logging identification, and seismic data prediction. However, these methods can only perform local observation, which can be c...

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Abstract

The invention discloses a survey method and a survey device for buried-hill crevice distribution. The survey method comprises the steps as follows: setting the initial depth range of a target zone; respectively adopting a longitudinal wave direction detection method and a relative wave resistance detection method to determine the crevice intensity distribution within the initial depth range; determining the crevice intensity distribution as target crevice intensity distribution when the two methods for determining the crevice intensity distribution acquire a concordant result; regulating the initial depth range, and adopting the two detection methods to acquire the crevice direction distribution with a corresponding depth during the regulation process till anyone of the detection methods determines that the crevice direction distribution is located in a known well and is concordant with the practical crevice direction distribution. The regulated initial depth range is the target depth range, and the crevice direction distribution of the target depth range is the target crevice direction distribution. Multiple kinds of data have relative independence and are applied to survey crevice distribution, so that the survey result is more accurate.

Description

technical field [0001] The invention relates to the technical field of geophysics, in particular to a survey method and device for crack distribution in buried hills. Background technique [0002] The geology after the crustal movement will form faults. Faults are formed when rock formations are ruptured when the force reaches a certain level, and there is obvious relative movement along the rupture surface. Later, faults develop and complex cracks with a certain distribution pattern will be formed. Often have oil and gas resources, or known as fractured oil and gas reservoirs. The richer the fractures, the better the development, and the richer the oil and gas resources. Geological surveyors often choose areas with well-developed fractures to drill wells to collect oil and gas resources. At present, when oil and gas resources are surveyed, the distribution of fractures formed by the development of faults is mainly surveyed to determine the distribution of oil and gas rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G01V1/30G01V1/16
Inventor 舒梦珵王真理
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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