西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (1): 47-58.DOI: 10.11885/j.issn.1674-5086.2016.07.22.01

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The Characteristics and Main Controlling Factors of Tight Oil Reservoir Formation in the Wolfcamp Series of the Permian Basin, USA

SUN Xiangcan1, TONG Xiaoguang2,3, ZHANG Guangya3, WEN Zhixin3, WANG Zhaoming3   

  1. 1. Oil & Gas Survey, China Geological Survey, Haidian, Beijing 100083, China;
    2. China National Oil and Gas Exploration and Development Corporation, Xicheng, Beijing 100034, China;
    3. Research Institute of Petroleum Exploration and Development, PetroChina, Haidian, Beijing 100083, China
  • Received:2016-07-22 Online:2018-02-01 Published:2018-02-01

Abstract: We conducted a deep analysis of the Wolfcamp Series tight oil reservoir formation conditions and discuss the main controlling factors of tight oil reservoir formation based on the analysis of the structural and sedimentary characteristics and systematic research on hydrocarbon source rock and reservoirs in the Wolfcamp Series of the Permian Basin. The results show that the Wolfcamp Series has good geological conditions for tight oil enrichment:excellent hydrocarbon source rocks that consist mainly of siliceous and calcareous shale and excellent " bottom-generating, top-storing" source-reservoir configuration. The main factors controlling the tight oil production and distribution are the source rock and reservoir characteristics and the source-storage configuration. The hydrocarbon source rock characteristics are the primary controlling factor because they determine the abundance of resources; the reservoir characteristics and good source-storage configuration determine the tight oil production, migration method, and hydrocarbon removal efficienc, and are crucial for the tight oil accumulation.

Key words: Permian Basin, Wolfcamp Series, tight oil, reservoir formation characteristics, controlling factor

CLC Number: