期刊
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
卷 187, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.petrol.2019.106858
关键词
Shale; Isolated kerogen; Adsorbed water distribution; Pore size distribution; Gas adsorption
资金
- China Scholarship Council [201506440050]
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University, China) [RES-59202]
Bakken shale samples were studied for distribution of adsorbed water using low-pressure nitrogen sorption. By comparing results between dry and wet samples, the distribution of adsorbed water in shale was determined. Two of the isolated kerogen samples show a striking change of pore size distribution (PSD) in large pores (>16 nm), indicating the pronounced distribution of adsorbed water in large pores of organic matter. As for the bulk shale, water can adsorb in both small (<16 nm) and large pores (>16 nm) depending on hydrophilic sites. However, hydrophilic sites in small pores are mainly contributed by inorganic matter, while hydrophilic sites in large pores are composed of inorganic or organic matter. The overall results therefore clarify the contribution of inorganic and organic matter to water adsorption in shale and provide a better understanding of the significance of adsorbed water in shale.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据