地层损害严重程度模糊综合评判
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摘要
针对目前评价地层损害程度的室内评价法和矿场评价法在定量分析方面存在的不足，应用二级模糊综合评判法，利用室内评价和矿场评价取得的资料，建立了包括钻井、完井、开发各工艺环节及其环节对地层损害类型的因素体系，确立了地层损害的模糊分类等级对应分值，构造了地层损害模糊关系矩阵，特别定义了地层损害严重程度，并结合油田实际给出损害严重程度的计算示例．
In view of there being shortcomings in the quantitative analysis of the laboratory evaluation and the field evaluation of formation damage, a secondary fuzzy comprehensive evaluation method is put forward. According to the data acquired from laboratory evaluation and field evaluation, a multifactor system including all damage procedures and their damage types is established. The damage grades and corresponding interval values are determined. A fuzzy matrix is structured. The definition of evaluating formation damage severity is given. And a instance is also given in which the fuzzy comprehensive evaluation method is applyed.
In view of there being shortcomings in the quantitative analysis of the laboratory evaluation and the field evaluation of formation damage, a secondary fuzzy comprehensive evaluation method is put forward. According to the data acquired from laboratory evaluation and field evaluation, a multifactor system including all damage procedures and their damage types is established. The damage grades and corresponding interval values are determined. A fuzzy matrix is structured. The definition of evaluating formation damage severity is given. And a instance is also given in which the fuzzy comprehensive evaluation method is applyed.
引文
1李克向．保护油气层钻井完井技术．北京：石油工业出版社，19932李宾元等编著．水平井完井和防砂．成都：成都科技大学出版社，19943冯得益等编著．模糊数学方法与应用．北京：地震出版社，19834AmaefuleJO，KerseyKG．Advancesinformationdam－ageassessmentandcontrolstrategies．CIM883965，1998
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