摘要
通过对盖层微观封闭特征和宏观封闭特征评价参数进行等级划分，赋予不同权值，利用加权平均法计算盖层自身封堵能力评价权值大小，探讨了盖层自身封堵能力的综合评价方法。此方法应用于大庆长垣及其百部地区嫩一、二段泥岩盖层的评价，其结果与天然气勘探成果十分吻合，证明了该方法的有效性。
Based on the predecessors' work, by weighting macrospoic and microsmic sealing characteristics of caprock into different grades, this paper suggests a comprehensive evaluation method on the sealing ability of caprock by calculating the weighted mean value of evaluation caprock sealing ability. This method is used it in the evaluation of Kn1+2 mudstone caprock sealing ability in Daqing Placanticline and a region on its westside. The results are consistent with the exploration results. It indicates that the method is practicable.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1995年第3期46-50,共5页
Petroleum Exploration and Development
关键词
盖层
封堵
性能
天然气勘探
Caprock, Plugging, Performance, Evaluation, Method, Daqing Placanticline, Nenjiang FM
