Burial evolution of evaporites with implications for sublacustrine fan reservoir quality: A case study from the Eocene Es4x interval, Dongying depression, Bohai Bay Basin, China
详细信息 查看全文
- 作者：Benben Maa ; b ; Yingchang Caoa ; cyc8391680@163.com" class="auth_mail" title="E-mail the corresponding author ; Kenneth A. Erikssonb ; kaeson@vt.edu" class="auth_mail" title="E-mail the corresponding author ; Yancong Jiac ; Yanzhong Wanga
- 关键词：Evaporites ; Dehydration fractures ; Sublacustrine fan ; Reservoir quality ; Eocene ; Bohai Bay Basin
- 刊名：Marine and Petroleum Geology
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：76
- 期：Complete
- 页码：98-114
- 全文大小：7474 K
文摘
- •
Sublacustrine-fan sandstones in Eocene Es4x are important hydrocarbon reservoirs.
- •
Evaporite and related diagenetic processes critically influenced reservoir quality.
- •
Microbial sulfate reduction (MSR) resulted in precipitation of micritic dolomite and framboidal pyrite.
- •
Dehydration fractures within anhydrite could increase reservoir permeability by connecting isolated pores.
- •
Dissolution of gypsum and anhydrite related to thermochemical sulfate reduction contributed little to reservoir quality.