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Method for obtaining fracture activity information

A technology of activity intensity and fault distance, applied in the field of geological exploration, which can solve the problems of studying fault limitations and the inability to accurately obtain fault activities.

Active Publication Date: 2017-03-08
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0020] For oil exploration, in most cases, drilling is done avoiding faults, and only occasionally cores from underground faults are obtained, which limits the method of studying faults through fault rock itself
[0021] In summary, the methods in the prior art cannot ideally and accurately obtain the specific conditions of fracture activity

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  • Method for obtaining fracture activity information
  • Method for obtaining fracture activity information
  • Method for obtaining fracture activity information

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Embodiment Construction

[0052] 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.

[0053] In order to acquire more accurate fracture activity conditions, the present invention proposes a method for acquiring fracture activity conditions. Through the analysis and research of geological data, it is found that different tectonic periods are divided based on...

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Abstract

The invention discloses a method for obtaining fracture activity information. On the basis of fault displacement generated by a to-be-analyzed fracture activity, a quantitative analysis is carried out to obtain specific information of the fracture activity. To be specific, division of different tectonic periods is carried out by using an unconformity geological series of strata as a boundary based on a tectonic time sequence; and the activity situation of the to-be-analyzed fracture activity during the corresponding tectonic period is processed by a quantitative analysis based on the fault displacement corresponding to the geological series of strata within the tectonic period, wherein the fault displacement corresponding to the geological series of strata within the tectonic period is obtained by superposition of fault displacement caused by fracture activities of the tectonic period and all tectonic periods after the tectonic period. Compared with the prior art, the accurate fracture activity information can be obtained.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to a method for acquiring fault activity. Background technique [0002] The process of fault activity in sedimentary basins is closely related to oil and gas migration and accumulation. Oil and gas often flow into traps through faults, and faults can also damage oil and gas reservoirs in subsequent activities. [0003] Therefore, in the process of oil and gas exploration, it is very important to analyze and obtain the fault activity, especially the relationship between the fault activity period and the hydrocarbon accumulation period. Because a fault often experiences multiple periods of activity, it is not easy to scientifically and accurately determine the period when the fault activity occurred. There are three main methods currently used to determine the period of fault activity as follows. [0004] (1) Balanced section method [0005] The balanced section method is a s...

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Application Information

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IPC IPC(8): G01V9/00
Inventor 李京昌
Owner CHINA PETROLEUM & CHEM CORP
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