Study on Reservoir Controlling Factors of Xujiahe Formation in Puguang Area
详细信息
- 责任者：Chen Xiaohua (Natural Gas Company ; SINOPEC ; Beijing 100011 ; China) ; Gao Mingjian
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2011
- 卷期：18(2)
- 关键词：低渗透储集层 ; low permeability reservoirs ; 砂岩储集层 ; sandstone reservoirs ; 四川 ; Sichuan Province
- 页码：p.169-172
- 图表：5 illus., 1 table, 7 refs.
- 分类号：1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
Xujiahe Formation in Puguang area belongs to ultra-low porosity and ultra-low permeability sandstone reservoirs on the whole. The result shows that the main controlling factors of reservoir development are the sedimentary facies and diagenesis. Among them, the controlling of sedimentary facies against reservoir is reflected mainly through the change of grain size and quartz content. The influence of reservoir diagenesis mainly includes compaction, cementation and denudation. The structural fractures developed well in the local part in Xujiahe Formation. The effect of the fractures on reservoir is a key of producing the commercial gas flow.