Xinjiang Petroleum Geology

Xinjiang Petroleum Geology ›› 2006, Vol. 27 ›› Issue (1): 59-61.

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Project Design for Gas Dr ive of Lower Kar amay Reservoir in West Distr ict No. 5-(2), Kar amay Oilfield

MEI Hai-yan1, GU Hong-jun2, XU Guo-yong2, DONG Han-ping2   

  1. 1. Southwest Petroleum Institute, Chengdu, Sichuan 610500, China;
    2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2005-06-29 Published:2020-10-19

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Abstract: Twenty two gas-drive projects for Lower Karamay reservoir in west District No.5-(2) are designed with individual production performance index prediction for each project. Sensitivity analyses of each gas injection duration, gas injection rate and gas-water alternation cycle are made with numerical simulation method. The results show that by gas-water alternation displacement process, the sum of cycles is not sensitive factor to the production performance, but the gas-water alternation duration and gas injection rate have great effects on gas-injection incremental oil production and gas injection oil production reduction ratio. And the gas drive process is an effective way to improve the reservoir behavior with high water cut and can be applied for great increase of oil recovery compared with waterflooding process.

Key words: Karamay oilfield, reservoir, gas drive, EOR, IOR

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