Distribution Prediction and Evaluation of Natural Fractures in 2nd Xu Member Gas Reservoirs, Xinchang Area, West Sichuan Basin
详细信息
- 责任者：Bi Hailong (College of Energy Resources ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhou Wen
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2013
- 卷期：35(1)
- 关键词：气藏 ; gas reservoirs ; 裂隙 ; cracks ; 四川 ; Sichuan Province
- 页码：p.76-78
- 图表：illus., 1 table, 7 refs.
- 分类号：1003
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
Natural fractures with complex formation periods are important factors to affect the development capacity in The 2nd Xu member in Xinchang area,west Sichuan basin.Based on the survey,identification and statistic of natural fractures in field,cores and thin section,the characteristics of the nature fractures are concluded and summarized.According with different geological factors such as bed thickness,structural deformation,faults,lithology,physical properties et al.to analysis those control of the natural fractures and figure out the main controlling factors of the natural fractures.Under the premise of the natural fracture characteristics and the main controlling factors,by comparing the results of single factor fractures predicting and the results of single well interpreting and considering the main controlling factors of the 2na Xu member in Xinchang area,a comprehensive evaluation factor of distribution predication of natural fractures is established.Evaluate the fractures distribution prediction resuits by the production performance data that tle consistent rate of them is more than 80% and the results are to meet the requirements of the development and application of precision.