应用模糊层次评判法进行油藏调剖适宜度综合评价

在对调剖措施影响因素分析以及对其量化研究的基础上,结合调剖措施效果评价原理,引用岭形分布函数确定了各评价因素的隶属度,得到单因素评价向量,进而应用模糊数学理论和0.1～0.9标度法建立了调剖措施适宜度模糊综合评价模型,并用模糊层次分析法求解各评价因素的权重,形成了评价油藏调剖措施适宜度的新方法,然后将这种方法应用在临盘油田盘2-20区块的调剖适宜度评价中.结果表明,此方法能够为油田区块调剖措施的实施提供指导,具有重要的现实意义.

Integrated evaluation on reservoir profile modification suitability degree using fuzzy hierarchy determination

Based on analysis and quantitative study on affecting factors on profile modification methods, and combining with evaluation theory of profile modification effect, this paper determines degree of membership of various evaluation factors using ridge -shaped distributed function, and obtains single -factor evaluation vector. Then it establishes fuzzy integrated evaluation model for profile modification suitability degree using fuzzy mathematics theory and 0. 1 -0. 9 scaling procedure, and discriminates weight of all evaluation factors using fuzzy hierarchy analysis method to form a new method for evaluating reservoir profile modification suitability degree. It applies this method to evaluation of profile modification suitability degree of Block Pan 2 - 20 in Linpan Oilfield, and result shows that this method has a feasible significance for implementation of profile modification in oilfields.