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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2013  >  35(4): 364-371
Mo Wuling, Lin Tong, Zhang Ying, Yi Shiwei, Wang Dongliang, Zhang Liang. Hydrocarbon origin and accumulation model of Kedong-Kekeya tectonic belt in piedmont of West Kunlun Mountain[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2013, 35(4): 364-371. doi: 10.11781/sysydz201304364
Citation: Mo Wuling, Lin Tong, Zhang Ying, Yi Shiwei, Wang Dongliang, Zhang Liang. Hydrocarbon origin and accumulation model of Kedong-Kekeya tectonic belt in piedmont of West Kunlun Mountain[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2013, 35(4): 364-371. doi: 10.11781/sysydz201304364
shu

Hydrocarbon origin and accumulation model of Kedong-Kekeya tectonic belt in piedmont of West Kunlun Mountain

doi: 10.11781/sysydz201304364
  • 1.

    Institute of Oil & Gas, Peking University, Beijing 100871, China

  • 2. Langfang Branch, Research Institute of Petroleum Exploration & Development, PetroChina, Langfang, Hebei 065007, China

  • 3. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

  • 4. Research Institute of Petroleum Exploration & Development, Tarim Oil Field, PetroChina, Korla, Xinjiang 841000, China

  • Received Date: 2012-06-28
  • Rev Recd Date: 2013-05-02
  • Publish Date: 2013-07-28
    Abstract
  • In the foreland of Western Kunlun Mountain, 3 sets of hydrocarbon source rock developed, including the Heshilafu Formation in the Lower Carboniferous, the Pusige Formation in the Lower Permian and the Yangye Formation in the Middle Jurassic. Analysis of source rock distribution, hydrocarbon property, oil-source and gas-source correlation in the Kedong-Kekeya tectonic belt in the foreland of Western Kunlun Mountain led to the fo-llowing 2 conclusions: a) Oil in the Kedong-Kekeya tectonic belt mainly originated from relatively highly-mature organic matter of type Ⅱ in Permian. b) Natural gas mainly came from Permian, and partially from Jurassic and Carboniferous. Based on the study of tectonic evolution, fluid inclusions and hydrocarbon accumulation evolution history of the well Kedong 1 and the Kedong-Kekeya tectonic belt, the author analyzed the accumulation process of hydrocarbon and summarized the accumulation model of hydrocarbon in the Kedong-Kekeya tectonic belt. Accumulation process of hydrocarbon in the Kedong-Kekeya tectonic belt can be divided into 4 periods which include initial charging period of oil, oil-charging window, gas-charging window and hydrocarbon-adjusting period. To figure out the source and accumulation process of hydrocarbon in the Kedong-Kekeya tectonic belt can provide important reference to expand exploration scope and find more petroleum resource in the study area.

     

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