Classification evaluation method for complex fault block reservoir

It is a technology of complex fault block and evaluation method, which is applied in the fields of earthwork drilling, fluid extraction, measurement, etc., to achieve the effect of broad application prospect, simple application and significant economic and social benefits.

Inactive Publication Date: 2019-03-26
GUANGDONG UNIV OF PETROCHEMICAL TECH
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[0003] The purpose of the present invention is to provide a method for classification and evaluation of complex fault-block reservoirs, solve the problem of comprehensive classification and evaluation of reservoirs that is conven...

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  • Classification evaluation method for complex fault block reservoir

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[0013] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

[0014] like figure 1 As shown, the complex fault block reservoir classification evaluation method of the present invention, its steps are as follows:

[0015] In step 101, a fine reservoir description is performed on the target complex fault-block reservoir, and a fine geological model is established. The purpose of this step is to establish a relatively high-precision reservoir model and lay a geological foundation for obtaining geological classification index parameters. The flow goes to step 102.

[0016] Step 102, based on the fine geological model of the target reservoir, apply the reservoir numerical simulation method, fully examine the dynamic and static data of the reservoir, and repeatedly modify and impro...

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Abstract

The invention discloses a classification evaluation method for a complex fault block reservoir. The method includes the following steps: (1) performing fine reservoir description on a target complex fault block reservoir and establishing a fine geological model; (2) performing numerical reservoir simulation to modify and improve the fine geological model; (3) utilizing the modified and improved fine geological model to obtain geological classification evaluation index parameters; (4) performing classification evaluation on the target complex fault block reservoir according to quantitative criteria of the geological classification evaluation index parameters. According to the method, main control factors affecting the reservoir development effect are selected as the classification evaluation index, and the quantitative classification evaluation criteria are utilized to comprehensively judge the development difficulty of the complex fault block reservoir, so that a comprehensive classification evaluation result of the reservoir is more reasonable, and the method has more promotion value.

Description

technical field [0001] The invention relates to the field of highly efficient development of complex fault-block oil reservoirs and greatly improving oil recovery, in particular to a classification and evaluation method for complex fault-block oil reservoirs. Background technique [0002] Reservoir classification and evaluation research is a very important content in oil and gas field exploration and development research. Many researchers at home and abroad have used different methods to classify and evaluate clastic rocks, carbonate rocks, volcanic rocks, and even shale reservoirs from different angles, such as macroscopic physical property parameter method, macro-microcosmic parameter combination method, fuzzy optimization method , gray cluster analysis method, method using mercury injection data and physical property analysis data, petrophysical phase method, neural network method, Q-type cluster analysis and Bayesian discriminant combination method, Q-type cluster analys...

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Application Information

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IPC IPC(8): E21B49/00E21B47/00E21B43/16
CPCE21B43/16E21B47/00E21B49/00
Inventor 胡罡王刘英田选华李鹏春刘全稳陈国民
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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