Compacted oil source rock classification evaluation standard division method based on hydrocarbon expulsion efficiency

A technology for evaluating standards and tight oil, applied in material separation, analysis of materials, instruments, etc.

Inactive Publication Date: 2016-10-26
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
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Problems solved by technology

[0004] In order to solve the current problems faced by source rock evaluation in tight oil exploration, the present invention provides a method for establishing tight oil source rock classification and evaluation standards based on source rock expulsion

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  • Compacted oil source rock classification evaluation standard division method based on hydrocarbon expulsion efficiency
  • Compacted oil source rock classification evaluation standard division method based on hydrocarbon expulsion efficiency
  • Compacted oil source rock classification evaluation standard division method based on hydrocarbon expulsion efficiency

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Embodiment Construction

[0099] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0100] The present invention mainly proposes a method for classifying and evaluating the organic matter abundance, type, maturity and overpressure in source rocks based on the hydrocarbon expulsion efficiency of tight oil source rocks.

[0101] Based on the thermal simulation experiment of hydrocarbon generation and the calibration of the chemical...

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Abstract

The invention relates to a compacted oil source rock classification evaluation standard division method based on hydrocarbon expulsion efficiency, which belongs to the field of unconventional oil and gas exploration and development. The method comprises the following steps: 1) the hydrocarbon generating quantity of a hydrocarbon source rock is evaluated based on a chemical dynamics method; 2) recovery of the original residual hydrocarbon quantity (S1) in the hydrocarbon source rock is carried out; 3) the hydrocarbon expulsion quantity (the hydrocarbon expulsion quantity=the hydrocarbon generating quantity-the residual hydrocarbon quantity) of the hydrocarbon source rock is evaluated based on a material balance method; 4) overpressure history recovery of the compacted oil source rock is carried out; and 5) the relationship between the hydrocarbon expulsion quantity and geological and geochemical parameters of the hydrocarbon source rock is built, and classification evaluation standards are defined. The invention provides a systemic and manipulable compacted oil source rock classification evaluation standard definition method with a strict scientific basis, and based on the method, classification evaluation on the compacted oil source rock can be realized, and a quality source rock distribution area can be depicted.

Description

technical field [0001] The invention relates to a method for classifying tight oil source rock classification evaluation standards based on hydrocarbon expulsion efficiency, and belongs to the field of unconventional oil and gas exploration and development. Background technique [0002] Tight oil and gas is the most realistic and available resource in my country's unconventional oil and gas energy structure. Although all relevant decision makers and researchers have recognized the inevitability and importance of tight oil and gas exploration and development, and have made some important progress, but In general, the current situation of exploration and development of tight oil and gas in my country lags behind its potential. Due to the low porosity and low permeability characteristics of tight reservoirs, the buoyancy of oil and gas in tight reservoirs is difficult to drive oil and gas migration, mainly due to short-distance migration of oil and gas in tight reservoirs driven...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/02G06F17/50G01N30/02
CPCG06Q50/02G01N30/02G01N2030/025G06F30/367
Inventor 黄文彪卢双舫薛海涛王伟明王民李吉君肖佃师陈方文
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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