Middle-seepage complex fault block oil reservoir water flooding development effect quantitative evaluation method

A technology with development effect and complex fault blocks, applied in instrumentation, climate change adaptation, data processing applications, etc., which can solve the problems of low accuracy of water flooding development effect and single consideration factors.

Active Publication Date: 2017-08-11
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0006] The purpose of the present invention is to provide a quantitative evaluation method for water flooding development effect of complex fault-block reservoirs with medium permeability in

Method used

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  • Middle-seepage complex fault block oil reservoir water flooding development effect quantitative evaluation method
  • Middle-seepage complex fault block oil reservoir water flooding development effect quantitative evaluation method
  • Middle-seepage complex fault block oil reservoir water flooding development effect quantitative evaluation method

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Embodiment Construction

[0088] Below in conjunction with the water flooding development effect evaluation examples and accompanying drawings of the Sha 2 lower oil reservoir in the east area of ​​Pucheng Oilfield, the embodiment of the present invention will be described in further detail, by figure 1 As can be seen, the concrete steps of the present invention are as follows:

[0089] 1 Select the factors that affect the water flooding development effect of the Lower Sha 2 reservoir in the east area of ​​Pucheng Oilfield, and determine the relatively independent and operable evaluation factors based on the degree of influence of each factor on the development effect and the logical relationship between each factor.

[0090] 1.1 Using the development geology, reservoir engineering, development management, and development economic data related to the development of the Lower Sha 2 reservoir in the east area of ​​Pucheng Oilfield, and according to the degree of influence of reservoir development factors ...

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Abstract

The invention relates to a middle-seepage complex fault block oil reservoir water flooding development effect quantitative evaluation method, which belongs to the oil field development and oil reservoir engineering field. According to the invention, on the foundation of selecting the factors influencing the water flooding development effect for middle-seepage complex fault block oil reservoir and according to the influencing degrees of the various factors on the development effect as well as the logic relationships among the various factors, the evaluation factors with relative independence and operability are determined, superposed in quantification and combined to establish an evaluation grade membership matrix capable of quantitatively evaluating the water flooding development effect of the middle-seepage complex fault block oil reservoir and to accomplish the purpose of quantitatively evaluating the water flooding development effect of the middle-seepage complex fault block oil reservoir. The method fully considers the shared influences of all individual factors on the oil reservoir and the obtained unique quantitative evaluation result for the target oil reservoir can reflect the water flooding development effect for the middle-seepage complex fault block oil reservoir scientifically and accurately so as to provide an objective basis for scientific decisions on oil reservoir development and technical support for the effective adjustment of the oil reservoir development scheme.

Description

technical field [0001] The invention relates to a method for quantitatively evaluating the water flooding development effect of medium-permeability complex fault-block reservoirs, belonging to the field of oilfield development reservoir engineering, and in particular to the technical field of oilfield development effect evaluation methods. Background technique [0002] Medium-permeability complex fault-block reservoirs are one of the main types of sandstone reservoirs in China, which are characterized by complex structures, small oil-bearing area of ​​a single fault block, and few reserves. This type of reservoir is usually developed by water flooding, with poor well pattern adaptability, serious water flooding inside the fault block, and relatively rich residual oil at the corner of the fault block. Low. How to quantitatively and accurately evaluate the water flooding development effect of this kind of reservoir and realize the beneficial development of the reservoir is an...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/06395G06Q50/02Y02A10/40
Inventor 史毅娜李中超陈林媛王自立赵爱武李长春王君刚万龙
Owner CHINA PETROLEUM & CHEM CORP
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