期刊
ACTA GEOLOGICA SINICA-ENGLISH EDITION
卷 92, 期 4, 页码 1508-1522出版社
WILEY
DOI: 10.1111/1755-6724.13640
关键词
lacustrine shale; pore development; extraction; shale gas; Chang 7; Ordos Basin
资金
- National Science Foundation of China [41502144, 41503034]
- Foundation of the State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing [PRP/open-1612]
- Fund of the Education Department of Sichuan Province [16ZA0075]
- Youth Scientific Innovation Team of Hydrocarbon Accumulation and Geochemistry, Southwest Petroleum University [2015CXTD02]
- Sichuan Province University Scientific Innovation Team Construction Project (USITCP)
To investigate the influence of extractable organic matter (EOM) on pore evolution of lacustrine shales, Soxhlet extraction, using dichloromethane, was performed on a series of Chang 7 shale samples (Ordos Basin, China) with vitrinite reflectance of 0.64% to 1.34%. Low-pressure gas adsorption experiments were conducted on the samples before and after extraction. The pore structure parameters were calculated from the gas adsorption data. The results show complex changes to the pore volumes and surface areas after extraction. The pore development of both the initial and extracted samples is strongly controlled by total organic carbon (TOC) content. Micropores developed mainly in organic matter (OM), while mesopores and macropores predominantly developed in fractions other than OM. The influence of EOM on micropores is stronger than on mesopores and macropores. Organic solvents with a higher boiling point should be used to explore the effect of EOM on pore structure in the future.
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