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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2005  >  27(3): 256-259
Qin Changwen, Pang Xiongqi. THE FEATURES AND EXPLORATION PROSPECT OF OUTCROP OIL ACCUMULATION IN QAIDAM BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2005, 27(3): 256-259. doi: 10.11781/sysydz200503256
Citation: Qin Changwen, Pang Xiongqi. THE FEATURES AND EXPLORATION PROSPECT OF OUTCROP OIL ACCUMULATION IN QAIDAM BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2005, 27(3): 256-259. doi: 10.11781/sysydz200503256
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THE FEATURES AND EXPLORATION PROSPECT OF OUTCROP OIL ACCUMULATION IN QAIDAM BASIN

doi: 10.11781/sysydz200503256
  • 1.

    Key Laboratory for Hydrocarbon Accumulation Mechanism, Ministry of Education, Petroleum University, Beijing 102249, China

  • 2. Basin and Reservior Research Center, Petroleum University, Beijing 102249, China

  • Received Date: 2004-12-03
  • Rev Recd Date: 2005-04-26
  • Publish Date: 2005-05-25
    Abstract
  • Outcrop oil accumulation is a special accumulation which is located in the wing of an outcrop anticline or in a monocline in the edge of a basin and is controlled by water table.It is a new explorating field.Through analyzing the geological conditions of oil accumulating and the exploration results in Yuqia oilfield in Qaidam basin,some viewpoints are put forward.Yuqia oilfiold in Qaidam basin is in an uncomplete outcrop anticline without trapping in top.The oil accumulation is lifted by underwater.It forms late and has good oil reservoir rocks with porosity over 17%.The oil in Yuqia oilfield is thin and the buried depth of oil accumulation is from 120 to 450 meters.Being of these features,it is considered as an outcrop oil accumulation.Qaidam basin is arid now.The depth of water table is from tens to hundreds meters in outcrop areas.It is abound in petroleum resources.There are many outcrop anticlines in the basin.The prospects for the exploration of outcrop oil accumulation in Qaidam basin is broad.

     

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