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Volume 44 Issue 1
Jan.  2022
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2022  >  44(1): 94-101
WANG Shaohua, NIE Hui, MA Shengzhong, DING Yi, LI Hao, LIANG Wenhua. Resource evaluation and sweet-spot prediction of inter-salt shale oil of Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2022, 44(1): 94-101. doi: 10.11781/sysydz202201094
Citation: WANG Shaohua, NIE Hui, MA Shengzhong, DING Yi, LI Hao, LIANG Wenhua. Resource evaluation and sweet-spot prediction of inter-salt shale oil of Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2022, 44(1): 94-101. doi: 10.11781/sysydz202201094
shu

Resource evaluation and sweet-spot prediction of inter-salt shale oil of Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin

doi: 10.11781/sysydz202201094
  • 1.

    Research Institute of Exploration and Development, SINOPEC Jianghan Oilfield Branch Company, Wuhan, Hubei 430223, China

  • 2.

    Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

  • Received Date: 2021-08-02
  • Rev Recd Date: 2021-12-10
  • Publish Date: 2022-01-28
    Abstract
  • Shale oil resources are rich in China's continental basins, and is a new reliever of petroliferous resource in China. It is of great practical significance for shale oil exploration in continental basins in eastern China to strengthen the study on the evaluation of shale oil resource potential in continental salty lake basins. For this reason, the inter-salt shale oil of Paleogene Qianjiang Formation in Qianjiang Sag of Jianghan Salt Lake Basin was employed as an example. This paper highlights the effectiveness and innovation of resource evaluation, and optimizes the shale oil resource evaluation method based on TSM basin modelling method, supplemented by volume method and pyrolytical method and resource abundance analogy method, so as to further clarify the resource potential and favorable area distribution of shale oil. The inter-salt shale oil resources of the Qianjiang Formation in the Qianjiang Sag are mainly distributed in 13 single rhythm layers and 1 complex rhythm layer, with the predicted geological resources of 800 million tons and recoverable resources of 126 million tons, of which the Eq34-10 rhythm resource is the largest. Horizontally, it is predicted that the central and northern part of Qianjiang Sag is a favorable exploration area for shale oil in the Qianjiang Formation, in which the geological resources of sweet-spot area are 243 million tons and the recoverable resources are 38 million tons, the geological resources of favorable area are 557 million tons and the reco-verable resources are 88 million tons.

     

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