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Research method for the main pore size range of shale oil occurrence

A technology for shale oil and pore size, applied in suspension and porous material analysis, instrumentation, permeability/surface area analysis, etc., can solve problems such as no public technology found

Active Publication Date: 2020-01-14
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0007] After searching for keywords such as shale oil, occurrence, and pore size range, although there are a few related research methods, no disclosed technology with the same principle and key steps as the present invention has been found

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  • Research method for the main pore size range of shale oil occurrence
  • Research method for the main pore size range of shale oil occurrence
  • Research method for the main pore size range of shale oil occurrence

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Embodiment Construction

[0041] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.

[0042] Such as figure 1 as shown, figure 1 It is a flow chart of the research method of the shale oil main occurrence pore diameter range of the present invention.

[0043] First, select a series of oil-bearing shale samples of a certain research unit, divide each shale sample into three points, one sample (sample 1) is used to determine the overall density of the shale, and carry out the experiment in step 101; one sample ( Sample 2) is used to measure the oil content, particle density, etc. of the shale, and the preparation and testing process of step 201, step 202, step 203, step 204 and step 205 are carried out in sequence; a sample (sample 3) is used for Study the proportion of pores with different pore diameters, and carry out the preparation and...

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Abstract

The invention provides a method for researching the main pore size range of shale oil. The method for researching the main pore size range of shale oil comprises the following steps: selecting a series of oil-bearing shale samples in a research unit, and dividing the oil shale sample into three parts which are a sample 1, a sample 2 and a sample 3 respectively; determining the bulk density of theshale by using the sample 1; determining the oil content and the grain density of the shale by using the sample 2; calculating the proportions of pores having different pore sizes by using the sample3; calculating the porosity and the oil saturation of the shale according to the bulk density, the grain density and the oil content of the shale, obtained in experiments; and determining the main pore size range of the shale oil according to the relationship between the oil saturation of the shale and the volume proportion of pores having different pore sizes in the total pore volume of the shale. The relationship between the oil saturation and the proportions of all the pore sizes, established through the method for researching the main pore size range of shale oil can objectively quantitatively research the main pore size range of shale oil.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration and development, in particular to a research method for the main pore diameter range of shale oil occurrence. Background technique [0002] Shale oil is an important unconventional oil resource. Its global reserves are far greater than conventional oil and gas. Insufficient understanding of the control factors and other aspects, resulting in its production degree is far lower than that of conventional oil and gas resources. Establishing a research method for the main occurrence space of shale oil and clarifying the main pore size range of shale oil occurrence will help to reasonably evaluate the exploration potential of shale oil and formulate corresponding development and development plans. In addition, the mechanism of oil occurrence in shale as a source rock is also an important content of the theory of hydrocarbon generation and expulsion of source rocks. Therefore, clarifying ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08G01N5/04
CPCG01N5/04G01N15/0893
Inventor 包友书李政李钜源吴连波王宇蓉张蕾刘华夏张学军刘庆张守春朱日房苗春欣
Owner CHINA PETROLEUM & CHEM CORP
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