Organic geochemistry characteristics of source rocks in Liaohe Depression

ZHAO Huitao; WANG Huaichang; LIU Jian; DING Xuefeng; LIU Yan

doi:10.3969/j.issn.1673-8926.2014.04.016

Lithologic Reservoirs >

2014 , Vol. 26 >Issue 4: 110 - 116

DOI: https://doi.org/10.3969/j.issn.1673-8926.2014.04.016

Organic geochemistry characteristics of source rocks in Liaohe Depression

ZHAO Huitao ,
WANG Huaichang ,
LIU Jian ,
DING Xuefeng ,
LIU Yan

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1. Key Laboratory of Petroleum Resources Research， Chinese Academy of Sciences， Lanzhou 730000， China； 2. University of Chinese Academy of Sciences， Beijing 100049， China； 3. Research Institute of Exploration and Development， PetroChina Liaohe Oilfield Company， Panjin 839009， Liaoning， China

Online published: 2014-08-15

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Abstract

In order to study the characteristics of source rocks for the hydrocarbon formation between western and eastern sags in Liaohe Depression, this paper studied the organic geochemistry characteristics of source rocks of Shahejie Formation by using Rock-Eval and GC-MS detection on saturated hydrocarbons. The GC-MS analysis and biomarker analysis of organic matter saturated hydrocarbon of 18 blocks of source rocks show the different biomarker characteristics of the same formation, and abietanes and methylsteranes compounds were detected in mass chromatogram at m/z 191 and m/z 231 respectively in the eastern and western sags. The results show that there are significant differences in the depositional environment and precursor input between the western and eastern sags in Liaohe Depression, and those might be important reasons for the differences of source rocks and hydrocarbon accumulation between western and eastern sags in Liaohe Depression.

Key words： tight sandstone; reservoir characteristics; low yield reasons; He 8 member; Ordos Basin

Cite this article

ZHAO Huitao , WANG Huaichang , LIU Jian , DING Xuefeng , LIU Yan . Organic geochemistry characteristics of source rocks in Liaohe Depression[J]. Lithologic Reservoirs, 2014 , 26(4) : 110 -116 . DOI: 10.3969/j.issn.1673-8926.2014.04.016

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