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Accurate and fast quantitative simulation method for hydrocarbon generation and expulsion history of source rocks in sedimentary basins

A simulation method and technology of source rocks, applied in the direction of measuring devices, soil material testing, instruments, etc., can solve the problems of large error, difficult promotion, heavy calculation workload, etc., and achieve the effect of quantitative calculation

Active Publication Date: 2021-07-30
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0005] The present invention provides a fine and fast quantitative simulation method for hydrocarbon generation and expulsion history of source rocks in sedimentary basins with different acquisition parameters, which is used to solve the technical problems of large errors, large calculation workload and difficult promotion in traditional calculation methods

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  • Accurate and fast quantitative simulation method for hydrocarbon generation and expulsion history of source rocks in sedimentary basins
  • Accurate and fast quantitative simulation method for hydrocarbon generation and expulsion history of source rocks in sedimentary basins
  • Accurate and fast quantitative simulation method for hydrocarbon generation and expulsion history of source rocks in sedimentary basins

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Embodiment Construction

[0078] The present invention will be further described below in conjunction with accompanying drawing.

[0079] Such as figure 1 As shown, the present invention provides a fine and fast quantitative simulation method for the hydrocarbon generation and expulsion history of source rocks in sedimentary basins, which includes the following steps:

[0080] Step 1: Determine the distribution information of source rocks in the target zone.

[0081] Step 2: According to the distribution information, unitize the destination layer along the depth direction with the step size h, and obtain the equivalent distribution index and dispersion coefficient of the source rock.

[0082] Step 3: Obtain the maturity of the source rock according to the thickness of the destination layer where the source rock is located.

[0083] Step 4: According to the maturity of the source rocks, the volumetric method is used to calculate the maximum and minimum theoretical hydrocarbon generation strengths of t...

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Abstract

The invention relates to a method for precise and rapid quantitative simulation of hydrocarbon generation and expulsion history of source rocks in sedimentary basins, relates to the technical field of oil and gas resource evaluation, and is used to solve the problems of large errors in traditional calculation methods, large calculation workload, and difficult popularization. question. The method of the present invention establishes a fast approximation algorithm closer to the actual source rock hydrocarbon generation process by defining the quantitative characterization parameters of the source rock longitudinal position and continuous distribution degree, that is, the equivalent distribution index and dispersion coefficient, and achieves fine, fast, Quantitative calculation of source rock hydrocarbon generation can provide more scientific and accurate results for oil and gas resource evaluation and basin simulation.

Description

technical field [0001] The invention relates to the technical field of oil and gas resource evaluation, in particular to a fine and fast quantitative simulation method for hydrocarbon generation and expulsion history of source rocks in sedimentary basins. Background technique [0002] At present, the genetic method is mainly used in the evaluation of oil and gas resources in my country, and this method will still be the main method for the evaluation of oil and gas resources in my country for a period of time in the future [Song Zhenxiang, Lu Jianlin, et al., Research progress and development direction of conventional oil and gas resource evaluation methods[J], China Petroleum Exploration, 2017,22(3):21-29]. [0003] Among them, the calculation of the amount of hydrocarbon generation and expulsion (including the history of hydrocarbon generation and expulsion) is the key step of this method. The traditional method of calculating the amount of hydrocarbon generation is to trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
CPCG01N33/241
Inventor 王保华陆建林左宗鑫倪春华李浩宋在超吕剑虹
Owner CHINA PETROLEUM & CHEM CORP
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