Analysis method for strike-slip fault zone of deep carbonate rock

A technology for carbonate rocks and fault zones, applied in the field of geological exploration, can solve problems such as large changes in the thickness of loose sand layers, constraints on the comprehensive evaluation and optimal deployment of favorable zones, and difficulties in seismic data acquisition, processing and imaging, etc.

Active Publication Date: 2020-03-03
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0004] Strike-slip fault zones generally have small vertical fault throws, fault interpretation marks are not clear, and carbonate rock dissolution is abundant. Especially in large desert areas, the surface dunes are undulating, and the thickness of loose sand layers varies greatly. Acquisition and processing of images has brought great difficulties
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  • Analysis method for strike-slip fault zone of deep carbonate rock
  • Analysis method for strike-slip fault zone of deep carbonate rock
  • Analysis method for strike-slip fault zone of deep carbonate rock

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[0042] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so that implementers of the present invention can fully understand how the present invention uses technical means to solve technical problems, and achieve the realization process of technical effects and according to the above-mentioned realization process The present invention is implemented concretely. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0043] Fault zones are crucial to key factors such as oil and gas migration, trap shielding, and reservoir development and transformation during the formation of oil and gas reservoirs. The interpretation of fault zones is one of the most important contents of seismic geolo...

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Abstract

The invention discloses an analysis method for the strike-slip fault zone of deep carbonate rock. The method comprises the following steps that: a geological mode is determined; response characteristics are determined; an active phase is determined; the strike-slip fault zone of a research area is analyzed based on results obtained in the above three steps, so that an analysis result can be obtained, and the analysis specifically includes the determination of a combination type and/or the determination of the scale of a reservoir body. According to the method, the rules of the strike-slip fault zone and oil-gas accumulation and reservoir development characteristics can be defined, and therefore, powerful data support is provided for the comprehensive geological condition research, oil andgas resource evaluation and target area optimal selection of complex fault control-induced reservoir body development areas.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to an analysis method for strike-slip fault zones in deep carbonate rocks. Background technique [0002] Fault zones are crucial to key factors such as oil and gas migration, trap shielding, and reservoir development and transformation during the formation of oil and gas reservoirs. The interpretation of fault zones is one of the most important contents of seismic geological interpretation in the process of oil and gas exploration. The comprehensive evaluation of fault zones based on fault zone interpretation is an important foundation and basis for evaluating the resource potential of fault-controlled reservoirs and guiding oil and gas exploration and development practices. [0003] In the study of the structure of the existing seismic data, the interpretation and analysis of the fault zone is guided by the theory of structural geology. In the actual interpretation operation, ...

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Application Information

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IPC IPC(8): G01V1/30
CPCG01V1/306G01V2210/624
Inventor 李宗杰刘军杨子川龚伟王鹏任丽丹魏华动王来源廖茂辉卢志强杨林曹自成刘群陈绪云黄超文山师陈俊安张荣李弘艳闫娥
Owner CHINA PETROLEUM & CHEM CORP
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