模糊法综合评价垦东断裂带断层封闭性  

On the Comprehensive Evaluation of Fault Sealing of Ken East Fracture Zone Using Fuzzy Method

作　　者：刘玉梅[1] 于兴河[1] 李胜利[1] 

机构地区：[1]中国地质大学,北京100083

出　　处：《重庆科技学院学报（自然科学版）》2009年第2期11-13,32,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：高等学校博士学科点专项科研基金项目(20050491001)

摘　　要：综合考虑岩性配置关系、断层走向与构造应力的关系、泥岩沾污因子、断层横向封堵系数、断层纵向封堵系数等几种主要因素对断层封闭性的影响,采用离散隶属函数和连续函数确定各单因素评价隶属度,并建立单因素评价矩阵。根据模糊变换原理,采用加权平均模型对垦东断裂带主要断层的封闭性进行模糊综合评判。综合评价结果与实际勘探相符,判断方法可靠,为该区的油气勘探以及开发方案设计提供了科学依据。In this paper, considering lithology configuration relations, the relationship between faults and the tectonic stress, the period of fault activity and oil and gas migration configuration relations, lithology occurrence configuration relations, mudstone staining factor, horizontal fault sealing coefficient, vertical fault sealing factor, such as the impact of fault sealing the seven major factors, determine membership degree of the single-factor evaluation by the use of discrete membership function and continuous function and establish the single-factor evaluation matrix. According to the principle of fuzzy transform, using the weighted average model, the sealing of the main faults of Ken East fracture zone is made fuzzy comprehensive evaluation. The result of the comprehensive evaluation is in line with the actual exploration. The method is reliable and provides a scientific basis to determine the area of oil and gas exploration and development program designed.

关 键 词：模糊法综合评价 垦东断裂带 断层封闭性 

分 类 号：TE121[石油与天然气工程—油气勘探]