优选油气田开发方案的灰色评价模型

GREY EVALUATION MODEL FOR OPTIMIZING DEVELOPMENT PROJECTS OF OIL AND GAS FIELD

本文用灰色系统理论建立了一种用于油气田开发方案优选的新方法,它是将油气田开发方案中的主要指标作为一个评价因素集{u_1,u_2,…},再作出评价者集{w_1,w_2,…}和评价值集{v_1,v_2,…},在给出v_1,v_2,…各种评价值的标准函数后,将w_1,w_2,…评价者全体对某因素u_j的评价归纳为标准评价值集v_1,v_2,…的权重,经整理即可得出方案的总评分并可排序。我们将此方法用于评价“四川川南矿区稳产方案可行性论证”所提出的5个方案,所得评价结果符合实际并为现场所接受,同时,还编制了相应的计算机程序。

According to grey system theory, a new method for evaluating and optimizing development projects of oil and gas field is given. It means: If w=(w_1, w_2, …} is the set of evaluator, u={u_1, u_2, …} is the set of evaluation factor, v={v_1, v_2, …} is the set of the type of evaluation value. Suppose d_(ij) is the evaluation value of evaluation factor u_p, which is given by evaluator group l. The grey evaluation is to classify w_1, w_2, …all evaluators for evaluation factor u_j into the Weighted number of standard evaluation value. The method is applied to 'feasiblity demonstration of stable yield projects in the South Sichuan oil field'. The evaluation and optimization is done for giving 5 projects. The results are tally with the actual situation and accepted by the users.