Pressure Evolution and Gas Accumulation of the Fourth Member of the Shahejie Formation in Dongying Depression, Bohai Bay Basin
详细信息
- 责任者：Liu Hua (School of Geosciences ; China University of Petroleum ; Qingdao 266555 ; China) ; Jiang Youlu
- 刊名：Acta Sedimentologica Sinica
- 出版年：2012
- 卷期：30(1)
- 关键词：天然气 ; natural gas ; 油气藏形成 ; reservoir formation ; 渤海湾盆地 ; Bohaiwan Basin ; 东营凹陷 ; Dongying Sag
- 页码：p.197-203
- 图表：5 illus., 1 table, 20 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
After the paleo-pressure build-up by means of measured pressure,mudstone sonic log interval and fluid inclusions,the pressure evolution model of the fourth member of the Shahejie Formation is analyzed in Minfeng area,Dongying Depression.The results show that,different periods of reservoir formation correspond to different pressure system in Es4 reservoir,Minfeng area.The hydrocarbon accumulation of Sha2-last stage of Dongying was accomplished in a higher pressure system.The hydrocarbon accumulation environment of the last stage of Ng was normal pressure.And after the middle and late period of Nm the cracking gas in the central area of sub sag was formed in a high pressure system.