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Establishing method of corrected geological risk evaluation model and trap evaluation method

A technology for risk assessment and method establishment, which is applied in the establishment of corrected geological risk assessment models and in the field of trap assessment. , to ensure the effect of accuracy

Active Publication Date: 2017-01-04
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for establishing a corrected geological risk assessment model to solve the problem of low accuracy of existing geological risk assessment models

Method used

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  • Establishing method of corrected geological risk evaluation model and trap evaluation method
  • Establishing method of corrected geological risk evaluation model and trap evaluation method
  • Establishing method of corrected geological risk evaluation model and trap evaluation method

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Embodiment Construction

[0058] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0059] The focus of the establishment method of the corrected geological risk assessment model of the present invention is to obtain the weight coefficients of each sub-factor and the weight coefficients of each parent factor, and then establish The corrected geological risk assessment model, the results of which are mainly used to improve the reliability of the geological risk assessment conclusions of exploration targets, such as figure 1 and 2 shown.

[0060] Such as image 3 As shown, the specific technical framework scheme of the establishment method of the corrected geological risk assessment model is as follows:

[0061] The first step is to divide the traps into successful and failed types according to the industrial oil and gas flow standards based on the oil test data of different types of traps in different regions;

[0062] For each trap, ther...

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Abstract

The invention relates to an establishing method of a corrected geological risk evaluation model and a trap evaluation method. The establishing method comprises the steps of dividing traps into a successful type and a failed type; evaluating the pollution factor of a corresponding sub-factor according to an initial value of the corresponding sub-factor before drilling of different traps, and then calculating the weight coefficient of the corresponding sub-factor; calculating the pollution coefficient of a corresponding parent factor according to an initial value of the corresponding parent factor before drilling of different traps, and then calculating the weight coefficient of the corresponding parent factor; and finally establishing the geological risk evaluation model. Furthermore, trap evaluation is performed according to the corrected model, thereby generating a positive effect on a trap evaluation result, ensuring high exploration accuracy and reducing probability of evaluation errors.

Description

technical field [0001] The invention relates to a method for establishing a corrected geological risk evaluation model and a trap evaluation method. Background technique [0002] At present, most of the geological risk assessments of exploration targets at home and abroad are based on the quantitative assignment of different geological factors and the corresponding geological risk assessment models for comprehensive evaluation and optimization. Therefore, the study of geological risk models has a crucial impact on the evaluation results. , the concept of geological risk model was first proposed for risk decision-making. Its construction framework mainly includes three parts: geological conditions (parent factors) and their weight coefficients, geological elements (child factors) and their weight coefficients, and evaluation parameters. It requires horizontal comparison of different exploration targets, risk queuing on a unified template, and priority selection of low-risk ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/0635G06Q10/067G06Q50/02
Inventor 刘鹏邱雯林社卿李显路万力彭国力李朝勇
Owner CHINA PETROLEUM & CHEM CORP
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