Geochemical features and identification marks for efficient source rocks of Yanchang formation in southern Ordos Basin

被引：7

作者：

Deng, Nan-Tao ^{[1
,2
]}

Zhang, Zhi-Huan ^{[1
,2
]}

Bao, Zhi-Dong ^{[1
,2
]}

Wang, Fu-Bin ^{[3
]}

Liang, Quan-Sheng ^{[4
]}

Li, Wen-Hao ^{[1
,2
]}

Lu, Chen ^{[3
]}

Zhao, Shuang-Feng ^{[1
,2
]}

Luo, Meng-Jiao ^{[1
,2
]}

机构：

[1] College of Geoscience in China University of Petroleum

[2] State Key Laboratory of Petroleum Resources and Prospecting in China University of Petroleum

[3] China Petroleum and Chemical Company Limited, North China Branch

[4] Research Institute of Shanxi Yanchang Petroleum (Group) Company Limited

来源：

Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2013年 / 37卷 / 02期

关键词：

Biomarkers; Effective hydrocarbon source rocks; Geochemical characteristics; Identification marks; Oil-source correlation; Southern Ordos Basin;

D O I：

10.3969/j.issn.1673-5005.2013.02.023

中图分类号：

学科分类号：

摘要：

Based on the analysis of the precise biomarker characteristics, type classifications and comparison of crude oil and source rocks, the effective source rocks of Yanchang formation in southern Erdos Basin were considered to be oil shale and mudstone in Chang 7.The identification mark of biomarker-normal geochemical evaluation-log electrical parameters in Yanchang formation of upper Triassic in southern Erdos Basin was established according to the geochemical characteristics and logging characteristics. The parameters are as follows: 8β(H)-homodrimane/8β(H)-drimanes<2, w(TOC)>1.6%, S1+S2>4 mg/g, IH>170 mg/g, GR>120 API, Δt>260 μs/m, RT>15 Ω·m, CNL>27%. Logging calculation formula of w(TOC) and IH was established according to the correlation of geochemical parameters and electrical ones, which has realized the cohesion of geochemical information of limited core to the whole interval logging information.

引用

页码：135 / 145

页数：10

共 18 条

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