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Petroleum reservoir exploitation effect evaluation method

An evaluation method and development effect technology, applied in the field of reservoir development effect evaluation, can solve the problems of narrow application range, difficult reservoir development effect quantitative characterization, inability to comprehensively and truly reflect the reservoir development effect, etc., and achieve a wide application range. Effect

Inactive Publication Date: 2017-12-08
PETROCHINA CO LTD
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Problems solved by technology

[0003] Most of the existing reservoir development effect evaluation methods can only evaluate the development effect of a specific reservoir at a specific development stage, and are no longer applicable when the development object and development stage change, and the scope of application is narrow
Moreover, the development effect evaluation indicators used in the existing evaluation methods are mostly management indicators, which cannot fully and truly reflect the actual development effect of the reservoir, and it is difficult to quantitatively characterize the development effect of the reservoir.

Method used

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  • Petroleum reservoir exploitation effect evaluation method

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Embodiment 1

[0038] This embodiment provides a method for evaluating the effect of reservoir development, which includes the following steps:

[0039] Step 101, judging the reservoir type of the target reservoir according to the geological characteristics of the target reservoir.

[0040] Step 102, determine the development stage of the target oil reservoir according to the reservoir type and recovery degree of the target oil reservoir.

[0041] Step 103, obtaining the calculation results of each development effect evaluation index of the target oil reservoir.

[0042] Step 104, according to the reservoir type and development stage of the target reservoir, and the calculation results of each development effect evaluation index, according to preset rules, the weight values ​​corresponding to each development effect evaluation index are obtained.

[0043] Step 105, calculating the sum of the weight values ​​corresponding to each development effect evaluation index to obtain the comprehensiv...

Embodiment 2

[0047]This embodiment provides a reservoir development effect evaluation method. In this evaluation method, according to the role of each development effect evaluation index in the reservoir development effect evaluation, each development effect evaluation index is quantified and scored, and the target oil reservoir is obtained. The comprehensive score of the development effect, and finally evaluate the development effect of the target reservoir according to the comprehensive score of the development effect, realize the quantitative characterization of the reservoir development effect, comprehensively and truly reflect the actual development effect of the reservoir, and provide a basis for formulating a reasonable and effective reservoir development plan , Provide basis for governance measures.

[0048] Specifically, the evaluation method provided in this embodiment includes the following steps:

[0049] Step 201, judging the reservoir type of the target reservoir according to...

Embodiment 3

[0113] In this embodiment, 29 specific fault-block reservoirs are taken as examples to further illustrate the reservoir development effect evaluation method provided by the present invention.

[0114] The 29 fault-block reservoirs in this embodiment include reservoir types such as high pressure and low permeability, high pour point oil, high saturation and ultra-low permeability. Fault-block fracture system is developed, fault-block is broken, small in scale, complex and diverse in reservoir types, difficult to exploit, and relatively low in development level. It is of great significance to comprehensively evaluate the development effect of complex fault blocks, carry out targeted geological research and control countermeasures, and implement comprehensive control of inefficient blocks.

[0115] In this example, the geological characteristics of the 29 fault-block oil reservoirs are shown in Table 5, among which, those not marked with carbonate rocks are all sandstone oil rese...

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Abstract

The invention discloses a petroleum reservoir exploitation effect evaluation method, and belongs to the field of petroleum reservoir exploitation effect evaluation methods and classification technologies. The evaluation method comprises the following steps of: a, judging a petroleum reservoir type of a target petroleum reservoir according to geologic features of the target petroleum reservoir; b, determining development stages of the target petroleum reservoir according to the petroleum reservoir type and a reserve recovery rate of the target petroleum reservoir; c, obtaining a calculation result of each development effect evaluation index of the target petroleum reservoir; d, obtaining a weight value of each development effect evaluation index according to the petroleum reservoir type and the development stages of the target petroleum reservoir, the calculation result of each development effect evaluation index and a preset rule; and e, calculating a sum of the weight values corresponding to the development effect evaluation indexes to obtain a development effect comprehensive score of the target petroleum reservoir, and determining a development effect of the target petroleum reservoir according to the comprehensive score. The evaluation method is capable of comprehensively and really reflecting the practical development effects of petroleum reservoirs and realizing the quantitative expression for the petroleum reservoir development effects.

Description

technical field [0001] The invention relates to the technical field of comprehensive evaluation method and classification of oil reservoir development effect, in particular to an evaluation method of oil reservoir development effect. Background technique [0002] In the process of reservoir development, it is of great significance to evaluate the development effect of the reservoir and take reasonable and effective treatment measures for the reservoirs with poor development effect in time for improving the recovery rate of the reservoir and improving economic benefits. [0003] Most of the existing reservoir development effect evaluation methods can only evaluate the development effect of a specific reservoir at a specific development stage, and are no longer applicable when the development object and development stage change, and the scope of application is narrow. Moreover, the development effect evaluation indicators used in the existing evaluation methods are mostly mana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/02G06Q10/06
CPCG06Q10/06393G06Q50/02
Inventor 王月辉吴郁刘继霞高丽商海兰刘淑敏黄旦华詹美萍陈善峰
Owner PETROCHINA CO LTD
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