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Remaining oil distribution rule quantitative analysis method

A technique of quantitative analysis and distribution rules, applied in the field of petroleum exploration, can solve problems such as the lack of quantitative analysis methods

Active Publication Date: 2018-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, in the analysis of the remaining oil distribution law and its controlling factors, visual analysis is generally used to find out individual representative typical areas and conduct induction, and no quantitative analysis method has been formed.

Method used

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  • Remaining oil distribution rule quantitative analysis method
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  • Remaining oil distribution rule quantitative analysis method

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Embodiment Construction

[0042] 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.

[0043] like figure 1 as shown, figure 1 It is a flow chart of the quantitative analysis method for remaining oil distribution law of the present invention.

[0044] In step 101, a numerical simulation model is established, production history fitting is performed, and the model is solved. A reservoir numerical simulation model is established from geological attribute parameters, fluid distribution parameters, injection-production well production parameters, and injection-production control parameters. History matching includes block and single well pressure fitting and production index fitting. and solve the model.

[0045] In step 102, model result data is extracted, and various index parameters are counted. Statistics of remaining oil saturation, ...

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Abstract

The invention provides a remaining oil distribution rule quantitative analysis method. The remaining oil distribution rule quantitative analysis method comprises the steps that 1, a value simulation model is built up, production history matching is conducted, and the model is solved; 2, result data is extracted, and statistics of index parameters are made; 3, a frequency distribution map of the remaining oil saturation and construction, permeability, oil layer thickness and pressure is drawn and analyzed; 4, a frequency distribution map and a cumulative frequency distribution map of the remaining oil reserve abundance and construction, permeability, oil layer thickness and pressure are drawn; 5, a frequency distribution map and an cumulative frequency distribution map of recoverable reserve abundance and construction, permeability, oil layer thickness and pressure are drawn; and 6, a result is obtained after comprehensive analysis is conducted. The remaining oil distribution rule quantitative analysis method is high in practicality, a remaining oil distribution mode and characteristics of an oil field are analyzed, and evidences are provided for follow-up digging and production increasing.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a method for quantitatively analyzing the distribution law of remaining oil. Background technique [0002] Residual oil is the remaining movable oil, which refers to underground movable crude oil that cannot be recovered temporarily under the existing mining technology conditions. The research on the distribution characteristics and law of remaining oil is one of the important tasks of development geologists. Quantitative analysis of the factors affecting the distribution of remaining oil is carried out to obtain the distribution pattern and characteristics of remaining oil in the oilfield, and corresponding technical countermeasures for enhancing oil recovery are proposed for different types of remaining oil in the target oilfield, providing directional guidance for deep tapping of oilfield potential. [0003] At present, there are many analysis methods for remain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00
CPCE21B49/00
Inventor 王端平黄迎松谷建伟刘志宏张以根魏明贾元元王鹏润唐从见刘海成陶德硕孙永杰赖书敏
Owner CHINA PETROLEUM & CHEM CORP
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