PENG Yongcana, LI Yingyana, MA Huishua, YANG Kunb, LIU Jianc, CHEN Yingxiaod " /> Influencing Factors of Crude Oil Properties in Lucaogou Tight Reservoir in Jimsar Sag,Eastern Junggar Basin

›› 2015, Vol. 36 ›› Issue (6): 1-1.doi: 10.7657/XJPG20150605

   

Influencing Factors of Crude Oil Properties in Lucaogou Tight Reservoir in Jimsar Sag,Eastern Junggar Basin

PENG Yongcana, LI Yingyana, MA Huishua, YANG Kunb, LIU Jianc, CHEN Yingxiaod   

  1. (PetroChina Xinjiang Oilfield Company, a.Research Institute of Exploration and Development; b.Development Company; c.Fengcheng Oilfield Operation District; d.Jingebi Company, Karamay, Xinjiang 834000)
  • Online:2019-01-01 Published:1905-07-16

Abstract: The tight reservoir of Lucaogou formation is a near?source oil pool with both source and reservoir in Jimsar sag, where there exist two sweet spots being 100 meters apart in the vertical. They belong to saline lacustrine deposits with big difference of fluid property. The crude oil in the lower sweet spot is much heavier than that in the upper one. Focusing on this feature of unusual distribution in crude oil property, this paper analyzed their kerogen type, oil source, source rocks’thermal evolution and oil biodegradation, and reveals the reasons for the partial thick crude oil and differential distribution in this area

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