Tectonism-diagenesis intensity quantitative evaluation and reservoir quality evaluation method

A quantitative evaluation and reservoir quality technology, applied in the direction of prediction, instrumentation, electrical digital data processing, etc., can solve the problems of inability to quantitatively evaluate structure-diagenetic strength, etc., and achieve the effect of reducing risk costs

Active Publication Date: 2016-11-09
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

This patent only simulates diagenesis, and cannot quantitatively evaluate the structural-diagenetic strength

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[0040] In order to further understand the technical characteristics of the present invention, the present invention will be described in detail below in conjunction with specific embodiments. The embodiments only have an exemplary effect on the present invention, and do not have any restrictive effect. Any insubstantial modifications made by those skilled in the art on the basis of the present invention shall belong to the protection scope of the present invention.

[0041] A method for quantitative evaluation of structural-diagenetic strength and reservoir quality evaluation method includes: (1) Quantitatively reflecting the strength and evolution of structural deformation in different structural periods; (2) Using basin simulation technology to restore the burial history curve of the formation , and then calculate the time-depth index of the target layer; (3) calculate the structure-diagenesis index; (4) evaluate the quality of the reservoir based on the structure-diagenesis....

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Abstract

The invention relates to a tectonism-diagenesis intensity quantitative evaluation and reservoir quality evaluation method. The method comprises the following steps that 1, the tectonic deformation intensity size and evolution thereof in different tectonism stages are quantitatively reflected; 2, a burial history curve of a stratum is recovered through a basin simulation technique, and then a time-depth index of the target stratum is calculated; 3, a tectonism-diagenesis index is calculated; 4, the reservoir quality is evaluated. According to the tectonism-diagenesis intensity quantitative evaluation and reservoir quality evaluation method, the tectonism and diagenesis intensity and the control effect thereof on reservoir evolution can be quantitatively reflected in the formation and evolution process of a sedimentary reservoir in a region, a comprehensive influence of the tectonism and the diagenesis on the reservoir formation and evolution process is objectively and quantitatively evaluated conveniently, therefore, the reservoir quality is evaluated, reliable information is provided for oil and gas exploration and development, and the risk cost of oil and gas exploration and development is reduced.

Description

technical field [0001] The invention relates to the field of oil and gas geology, in particular to a method for quantitative evaluation of structure-diagenetic strength and reservoir quality evaluation Background technique [0002] The formation and evolution of reservoirs are controlled by both tectonic and diagenetic processes, which jointly control the quality of reservoirs. However, due to the lack of effective quantitative methods, the formation and evolution of reservoirs and the quality of reservoirs are mainly studied from the perspective of diagenesis, and the influence of structural deformation intensity on reservoirs is not considered, so the evaluation results are difficult to objectively reflect reservoirs The quality is good or bad. It is of great economic and social significance to objectively reflect the quality of reservoirs by quantitatively evaluating structure-diagenetic strength. [0003] For example, the Chinese invention patent with the authorized no...

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Application Information

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IPC IPC(8): G06F17/50G06Q10/04G06Q50/06
CPCG06F30/23G06F30/367G06Q10/04G06Q50/06
Inventor 曾联波刘国平
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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