XUE Hai-tao1*, TIAN Shan-si1, LU Shuang-fang1, ZHANG Wen-hua1,2, DU Tian-tian1,2, MU Guo-dong1,2
1. China University of Petroleum(Eastern China), Qingdao Shandong 266580, China;
2. Northeast Petroleum University, Daqing Heilongjiang 163318, China
Abstract: Pyrolysis parameter, S1, is a key parameter on behalf of oil content in the shale oil resource evaluation process. But contents of light hydrocarbons and heavy hydrocarbons in the measured S1 were under estimated because of the experimental process. In order to accurate evaluate shale oil resources, we conducted rock pyrolysis experiments on original and extracted samples of chloroform bitumen "A", then compared their results to acquire the compensation factors of heavy hydrocarbons for S1 and to determine the compensation factors of light hydrocarbons of S1, by such we gained the oil content of shale, which we called the calibrated S1. Moreover, we determined the flowing amount of shale oil according to the hydrocarbon expulsion threshold. Results showed that the original S1 and the calibrated S1 are significantly different, and that the threshold is 75 mg/g TOC. The favorable area of exploration and development can be selected according to resource evaluations of shale oil and clay minerals. The favorable areas of qn1 should be concentrated in the central and northern Qijia-Gulong sag and the middle of the Longhupao-Daan terrace, while those of qn2 and qn3 should be mainly concentrated in the center and southern of the Longhupao-Daan terrace and the Qijia-Gulong sag.
Keywords: shale oil oil content S1 correction selection of moveable oil parameter favorable area
*Corresponding Author, E-Mail: sea1999101@sina.com
Bulletin of Mineralogy, Petrology and Geochemistry Vol. 34, No.1, 2015, page 191-200
