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A reservoir evaluation classification method and device

A classification method and reservoir technology, applied in the field of geophysical exploration of reservoirs, can solve the problems of unsatisfactory effect of classification and evaluation of reservoir evaluation, and achieve the effect of ideal effect, high application value and high resolution.

Inactive Publication Date: 2019-05-03
PETROCHINA CO LTD
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Problems solved by technology

[0008] An embodiment of the present invention provides a reservoir evaluation and classification method to solve the problem of unsatisfactory results of reservoir evaluation classification and evaluation under the condition of multiple exploration results data. The method includes:

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  • A reservoir evaluation classification method and device
  • A reservoir evaluation classification method and device
  • A reservoir evaluation classification method and device

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0032] The embodiment of the present invention provides a method for classification and evaluation of reservoir evaluation, which is used to solve the problem of unsatisfactory results of classification and evaluation of reservoir evaluation under the condition of multiple exploration results data, such as figure 1 As shown, the method includes:

[0033] Step 101, performing principal component analysis on multivariate exploration data of the reservoir to obtain first principal component data and second principal component data;

[0034] Step 102, classify the first ...

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Abstract

The invention provides a reservoir evaluation classification method and device. The method comprises classifying according to the spatial distribution density of the sample points and the accumulateddistance between the sample points; classifying reservoir multivariate exploration data; the method is simple in concept, the classification effect is superior to that of a conventional clustering algorithm, the clustering method is not applied to the field of petroleum geophysical prospecting, the method has good adaptability to complex multivariate exploration data, the classification effect has high resolution, reliability, robustness and ideal effect, and the method has high application value in the field of oil and gas exploration.

Description

technical field [0001] The invention relates to the technical field of reservoir geophysical exploration, in particular to a reservoir evaluation and classification method and device. Background technique [0002] The main purpose of reservoir evaluation and classification research is to conduct a basic evaluation of the quality of reservoirs on the basis of obtaining detailed data such as elasticity and physical property information, aiming at selecting high-quality reservoirs and oil and gas sweet spots and reducing exploration risks. [0003] The ultimate goal of reservoir research is to evaluate and classify reservoirs in line with geological reality. Reservoir evaluation classification methods at home and abroad mainly include geological experience method, weight analysis method, analytic hierarchy process, fuzzy mathematics method, artificial neural network method, fractal geometry method, variogram method, cluster analysis method, gray relational method, various Well...

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Application Information

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IPC IPC(8): G06K9/62
Inventor 王恩利杨午阳谢春辉杜炳毅闫国亮李海山杨庆鄢高韩
Owner PETROCHINA CO LTD
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