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Shale oil and gas resource potential grading evaluation criterion method

A shale oil and gas, evaluation standard technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as not considering the recoverability of shale oil and gas, and not considering the impact of organic matter types, etc.

Inactive Publication Date: 2015-01-07
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

[0006] To sum up, the prior art has the following disadvantages: 1. In the analysis of shale oil and gas, the influence of organic matter type is not considered; 2. The recoverability of shale oil and gas is not considered

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] refer to Figure 1-7 , the specific implementation method adopts the following technical scheme: a set of shale oil and gas resource potential grading evaluation standard method, the steps are:

[0026] (1) Oil-bearing analysis of different types of shale (argillaceous dolomite)

[0027] For the evaluation of traditional source rocks, we hope that as much oil and gas as possible can be expelled for migration and accumulation, while for shale oil and gas, we hope that as much oil and gas will remain in the rock as possible. Therefore, for rocks that form shale oil and gas, when discussing their oiliness, it is necessary to consider the type of organic matter, mainly because the hydrocarbon expulsion efficiencies of different types of source...

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Abstract

The invention discloses a shale oil and gas resource potential grading evaluation criterion method and relates to an evaluation criterion. The method mainly includes: discussing oiliness of different types of argillaceous dolomite according to absolute oil content (S1) and relative oil content parameter (S1 / TOC), establishing shale oil resource grading evaluation criterion by utilizing knee points according to correlation between the S1 and the TOC, and dividing shale oil and gas resources into four classes of enriched, medium enriched, low-efficiency and invalid resources. By the principle and the method, the oiliness of the different types of argillaceous dolomite is discussed from the perspectives of hydrocarbon generation and expulsion, and a method for quickly evaluating shale oil and gas resource potential is established. In addition, the shale oil and gas resource potential grading evaluation criterion is provided from the perspectives of shale oil and gas resource quantity and shale oil recoverability for the first time, theoretical support is provided for optimal selection of basins containing shale oil and gas in China, and the shale oil and gas resource potential grading evaluation criterion is directly related to decision making for investment and exploration direction of an exploratory area.

Description

technical field [0001] The invention relates to an evaluation standard, in particular to a set of shale oil and gas resource potential grading evaluation standard methods. Background technique [0002] The successful development of shale gas reservoirs in North America has established the important position of shale oil and gas in the energy structure and greatly promoted the global shale oil and gas exploration and development process (Rong, 1997; Hill et al., 2004; Perry and Lee, 2007 ). However, since North American mud shale formations are mostly developed in marine formations, with small facies change and strong homogeneity, the favorable areas for shale oil and gas development can be determined by using limited exploratory wells and some analysis and test data. Therefore, there are no foreign reports on the grading and evaluation of shale oil and gas resources. [0003] my country's mud shale is widely distributed and is the main battlefield for shale oil and gas exp...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 李文浩卢双舫张鹏飞胡莹李倩张亚念张晗
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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