Diagenetic and porosity evolution of conglomerate sandstones in聽Bayingebi Formation of the Lower Cretaceous, Chagan Sag, China-Mongolia frontier area
详细信息 查看全文
- 作者：Wei Weia ; b ; hunqiu8854@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Xiaomin Zhua ; b ; xmzhu@cup.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Mingxuan Tana ; b ; Mengge Xuea ; b ; Dianbin Guoa ; b ; c ; Hui Suc ; Pengyu Wangc
- 关键词：Diagenesis ; Porosity evolution ; Conglomerate sandstone ; Fan delta ; Lower Cretaceous ; Chagan Sag
- 刊名：Marine and Petroleum Geology
- 出版年：2015
- 出版时间：September 2015
- 年：2015
- 卷：66
- 期：part_P4
- 页码：998-1012
- 全文大小：6123 K
文摘
- •
Quantitative diagenesis in the conglomerate sandstones was examined.
- •
Porosity and permeability reduction were caused by compaction and cementation.
- •
Clays and carbonate cements in conglomerate sandstones reduced reservoir quality.
- •
Dissolution of carbonate cement and metastable framework grains caused high porosity.
- •
Thickly bedded channels (>2 m) of fan delta front have high porosity.