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The method of quantitative assignment of the weight of the preservation coefficient of the evaluation unit in the calculation of shale oil resources

An evaluation unit and shale oil technology, applied in design optimization/simulation, earthwork drilling, wellbore/well components, etc., can solve problems such as misunderstandings and deviations, achieve scientific evaluation, overcome oily differences, and solve evaluation problems The effect of inaccurate results

Active Publication Date: 2022-07-08
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

If the evaluation of exploration selection areas is carried out based on the current calculation results of shale oil resources, there will be obvious deviations, and even a wrong understanding

Method used

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  • The method of quantitative assignment of the weight of the preservation coefficient of the evaluation unit in the calculation of shale oil resources
  • The method of quantitative assignment of the weight of the preservation coefficient of the evaluation unit in the calculation of shale oil resources
  • The method of quantitative assignment of the weight of the preservation coefficient of the evaluation unit in the calculation of shale oil resources

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Embodiment Construction

[0058] In order to make the above-mentioned and other objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

[0059] like figure 1 shown, figure 1 It is a flow chart of the method for quantitatively assigning the weight of the preservation coefficient of the evaluation unit in the calculation of the shale oil resource of the present invention.

[0060] 1) Division of evaluation units: According to the actual geological structure and characteristics of preservation conditions in the study area, different evaluation units are divided; for the division of evaluation units, a fine interpretation of the structure of the study area is firstly carried out, and the distribution characteristics of the target layers and the distribution characteristics of main faults are clarified. The distribution of strata overburden or ...

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Abstract

The invention provides a method for quantitatively assigning the weight of the preservation coefficient of an evaluation unit in the calculation of shale oil resources. Outcrop section; Step 3, establish the relationship chart of organic matter abundance and oil content parameters for different evaluation units and lithofacies; Step 4, establish a quantitative model for the weight assignment of preservation coefficients of different evaluation units and lithofacies; Step 5, sub-evaluation Unit and lithofacies types calculate resources. In the calculation of shale oil resources, the method of quantitatively assigning the weight of the preservation coefficient of the evaluation unit is more scientific, and the results are more objective. support.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to a method for quantitatively assigning weights of preservation coefficients of evaluation units in the calculation of shale oil resources. Background technique [0002] In recent years, the exploration and development of shale oil and gas has achieved great success in North America, which has promoted the upsurge of global shale oil and gas exploration and research, and the exploration of shale oil unconventional oil and gas resources has attracted more and more attention. Global shale oil and gas research is still in its infancy. In the early stage of oil and gas exploration, the evaluation of shale oil resources is of great significance for the selection of shale oil and gas exploration direction and the evaluation of zones. Regarding conventional resource evaluation, predecessors have proposed a variety of research methods such as analogy method, statistical metho...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/00E21B49/08G06F30/20
CPCE21B49/00E21B49/087
Inventor 林会喜王圣柱汪誉新曲彦胜马雪洁于洪洲张奎华张关龙赵建成牛晓燕
Owner CHINA PETROLEUM & CHEM CORP
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