Shale Gas Accumulation Conditions and Favorable Area Prediction of Hetang Formation in South Anhui Province of China

详细信息   

• 责任者：Chen Jie(China University of Mining and Technology ; School of Resources & Earth Science ; Xuzhou ; Jiangsu 221116 ; China) ; Zhu Yanming
• 刊名：Xinjiang Petroleum Geology
• 出版年：2012
• 卷期：33(4)
• 页码：p.420-423
• issnNo：ISSN1001-3873
• isbnNo：CN65-1107/TE

摘要

The field observation,sampling and lab analysis indicate that the shale sediment of the Hetang formation of Lower Cambrian in Lower Yangtze region of South Anhui province is widely distributed in the study area,with a thickness of 60~360 m,organic carbon content of 0.5%~7.2%,thermal evolution degree of 2.0%~5.5%,possessing better hydrocarbon-generating potential.The mercury injection experiment shows that its average porosity reaches 0.716%,providing some storage spaces for the free gas.The isothermal adsorption experiment shows that the shale in study area has strong adsorption ability for the adsorbed gas averaging 0.443 cm3/g.It is suggested that the regions of related Shitai-Yixian-Jingxian-Ningguo with an area of 9100 km2 will be the favorable areas for shale gas exploration.