Oil & Gas Geology ›› 2011, Vol. 32 ›› Issue (5): 692-697,709.doi: 10.11743/ogg20110507

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High-quality hydrocarbon source rock identification and hydrocarbon migration and accumulation characteristics in hte Wudong slope zone of the Hailer Basin

Wang Weiming1, Lu Shuangfang1, Cao Ruicheng2, Shang Jiaohui1, Chen Guohui1   

  1. 1. College of Earth Sciences,Northeast Petroleum University,Daqing,Heilongjiang 163318,China;
    2. Hailer Exploration and Development Department,PetroChina Daqing Oilfield Company,Daqing,Heilongjiang 163000,China
  • Received:2011-01-06 Online:2011-10-28 Published:2011-12-16

Abstract:

Based on high vertical resolution of well logging data,we used ΔlgR method to identify the high-quality hydrocarbon source rocks in Wudong slope zone of Hailer Basin and explored its relationship with hydrocarbon accumulation.Research showed that the high-quality hydrocarbon source rocks identified by logging in the vicinity of Wudong reservoir occur in stripped shape in the area from Wu 31 to Wu 108-112 wellblocks in Wu-dong slope zone.The crude oil in this area can be divided into two types.The first type of crude oil correlate well with the high quality source rocks in Wunan subsag in the downdip direction of Wudong reservoir,as they all show obvious characteristics of Ts>Tm and low gammacerane.The second type of crude oil correlate well with the high quality source rocks in Wudong slope zone as they all obviously featured in Ts

Key words: high-quality source rock, oil-source correlation, hydrocarbon migration and accumulation mode, Wudong slope zone, Hailer Basin

CLC Number: