Geochemical Characteristics of Crude Oils in Mid-Shallow Layer of Wangfu Sag and Adjacent Areas, Songliao Basin

Xinjiang Petroleum Geology ›› 2007, Vol. 28 ›› Issue (1): 40-43.

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Geochemical Characteristics of Crude Oils in Mid-Shallow Layer of Wangfu Sag and Adjacent Areas, Songliao Basin

JIANG Xing-chao^1,2, WANG Tie-guan², FENG Zi-hui³, CHEN Jian-fa², WANG Jie⁴, LI Min³, WANG Xue³

1. Geochemistry Department, Yangtze University, Jingzhou, Hubei 434023, China;
2. Key Laboratory of Hydrocarbon Accumulation Mechanism, Ministry of Education, China University of Petroleum, Beijing 102249, China;
3. Research Institute of Exploration and Development, Daqing Oilfield Company Ltd., PetroChina, Daqing, Heilongjiang 163712, China;
4. Wuxi Institute of Petroleum Geology, Research Institute of Petroleum Exploration and Development, Sinopec, Wuxi, Jiangsu 214151, China

Received:2006-04-21 Online:2007-02-01 Published:2020-07-29

Abstract

Abstract: The group composition, light hydrocarbon, chain alkane, sterane, hopane and stable carbon isotope are analyzed in geochemical characteristics. Study shows that the crude oils from Fuyu-Yangdachengzi zone belong to the same oil source, which could further be divided into three groups such as immature oil (A) , low-middle mature oil (B) and middle mature oil (C) . Type A is found in Wells Chang-20, San-403 and Wu-204 which are located at the highs of palaeo-and present-structure; Type C in Well Shuang-32 located at Wangfu sag, and Type B is distributed in rest areas.

Key words: Songliao basin, geochemical characteristic, crude oil, maturity

CLC Number:

TE125.4

JIANG Xing-chao, WANG Tie-guan, FENG Zi-hui, CHEN Jian-fa, WANG Jie, LI Min, WANG Xue. Geochemical Characteristics of Crude Oils in Mid-Shallow Layer of Wangfu Sag and Adjacent Areas, Songliao Basin[J]. Xinjiang Petroleum Geology, 2007, 28(1): 40-43.

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Geochemical Characteristics of Crude Oils in Mid-Shallow Layer of Wangfu Sag and Adjacent Areas, Songliao Basin

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