Non-linear optimization decision-making method of planning schemes for oilfield development

A technology of planning scheme and decision-making method, which is applied in the field of nonlinear optimization and decision-making of oilfield development planning scheme, and can solve problems such as the utility of the impact evaluation method and the difficulty of collection.

Inactive Publication Date: 2014-09-17
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

Secondly, there are more subjective factors in the distribution of index weights, which affects the effectiveness of its evaluation methods
Computational intelligence methods require learning samples for supervised learning. These samples come from usual collection or from the construction based on attribute value functions; the fo

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  • Non-linear optimization decision-making method of planning schemes for oilfield development
  • Non-linear optimization decision-making method of planning schemes for oilfield development
  • Non-linear optimization decision-making method of planning schemes for oilfield development

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[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited to the scope indicated by the examples.

[0041] The first step: according to figure 1 In the process shown, firstly, the schemes to be optimized and the index attributes of each scheme are determined, and the following data are given in the example:

[0042]

[0043] Step 2: According to the index data provided by each plan, establish a decision matrix A=(a ij ) 4×7 :

[0044] A = 22.3 4.25 8.3 0.653 21 3.43 5.5 21.8 7.74 ...

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Abstract

A non-linear optimization decision-making method of planning schemes for oilfield development comprises the following steps that A a planning scheme set to be optimized and a scheme evaluation index set are determined; B an attribute decision-making matrix is built according to index attribute data provided by the schemes; C standardization is performed through different methods according to different index attribute types so that the decision-making matrix can be converted into a standardized decision-making matrix; D the weight of each index attribute is calculated through a combination weighting method, subjective and objective combination is achieved, and the just and ideal weight of each index attribute is obtained; E a weighted standardized matrix is built by means of the standardized matrix obtained in the step C and the weights obtained in the step D; F the schemes are sequenced according to strengths and weaknesses to obtain the optimal scheme by means of an evaluation decision-making model. The method solves the problem that the weights of the index attributes are too objective or subjective, relieves the degree of influence on the weights from the maximum deviation of the index attributes and makes an evaluation result be more scientific, accurate, just and reasonable.

Description

technical field [0001] The invention relates to a nonlinear optimization decision-making method for an oilfield development planning scheme, in particular to a method for optimizing a decision-making scheme for an oilfield development planning scheme by determining weights through a combination weighting method and constructing a nonlinear value function evaluation decision-making model. Background technique [0002] At present, most oilfields in my country are in the period of medium and high water cut. In order to formulate the development (adjustment) plan of the oilfield in the middle and late stages, it is necessary to comprehensively consider the national planning indicators, oilfield production capacity indicators, and oilfield development investment. The quality of the development plan directly affects the comprehensive economic benefits of the oilfield. Therefore, it is essential to plan and design oilfield development. The optimization of the planning scheme is th...

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Application Information

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IPC IPC(8): G06Q10/06
Inventor 李克文王义龙
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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