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Method for determining migration dynamic conditions by utilizing hydrocarbon-type geochemical parameters of oil deposits

A geochemical, parameter-determining technology that can be used in earth-moving drilling, wellbore/well components, surveying, etc., to solve problems such as lack of data support

Active Publication Date: 2018-04-17
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The migration dynamics mostly manifest as two mechanisms of overpressure and buoyancy, but the complexity of the accumulation zone often forms multiple dynamical systems, and these dynamical systems need to be accurately divided in actual work. Lack of sufficient data to support

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  • Method for determining migration dynamic conditions by utilizing hydrocarbon-type geochemical parameters of oil deposits
  • Method for determining migration dynamic conditions by utilizing hydrocarbon-type geochemical parameters of oil deposits

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Embodiment Construction

[0018] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below, and are described in detail in conjunction with the accompanying drawings.

[0019] like figure 1 as shown, figure 1 It is a flow chart of the method for determining the migration dynamic condition by using the hydrocarbon geochemical parameters of the reservoir according to the present invention.

[0020] In step 101, classification and calibration of source rock horizons and biomarker feature analysis are performed. The range and type of source rocks are determined according to the development, sedimentary characteristics, and organic geochemical characteristics of shale formations in depressions or basins. The process goes to step 102.

[0021] In step 102, oil reservoir sample analysis and oil source comparison are carried out, and oil reservoirs are classified according to oil source. Select as many reservoi...

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Abstract

The invention provides a method for determining migration dynamic conditions by utilizing hydrocarbon-type geochemical parameters of oil deposits. The method for determining migration dynamic conditions by utilizing hydrocarbon-type geochemical parameters of the oil deposits comprises the steps that 1, classified calibration of a hydrocarbon source rock stratum and biological marker feature analysis are performed; 2, oil deposit sample analysis and oil and source comparison are performed, and the oil deposits are classified according to oil sources; 3, the change laws with depths of hydrocarbon-type sterane isomerization parameters and light-heavy ratio parameters of same-type-source oil deposits or single-source oil deposits are established, and mode curves are drawn; 4, influence factorsof trend changes of trend lines are analyzed; 5, dynamic condition analysis and distinguishing are performed, and dynamic systems are divided. The method for determining migration dynamic conditionsby utilizing the hydrocarbon-type geochemical parameters of the oil deposits utilizes multiple geochemical parameters to determine a dynamic environment for hydrocarbon migration, research of an oil-gas reservoir forming mechanism is achieved, and evidences for migration and reservoir forming research are more directly and reliably provided.

Description

technical field [0001] The invention relates to the field of oil and gas accumulation research, in particular to a method for determining migration dynamic conditions by utilizing geochemical parameters of oil reservoir hydrocarbons. Background technique [0002] Oil and gas accumulation analysis is the core of petroleum geology research and one of the key issues affecting oil and gas exploration, and the analysis of dynamics is the most important link. Due to the complexity of geological conditions, there are still many bottlenecks in this aspect of research at home and abroad. [0003] Due to the differentiation effect in the migration process of hydrocarbons, the proportion of some components will change, and this kind of change is obviously related to the dynamic environment of hydrocarbon migration. Paleopressure studies during the accumulation period mainly include numerical simulation methods, inclusion measurement methods, etc. Through these methods, the pressure st...

Claims

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Application Information

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IPC IPC(8): E21B47/10E21B49/00
CPCE21B47/10E21B49/00
Inventor 张守春王学军徐兴友王秀红李钜源刘庆刘旋包友书吴连波张蕾王宇蓉刘军宋长玉鲍燕吴平金洪蕊
Owner CHINA PETROLEUM & CHEM CORP
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