Lithologic Reservoirs ›› 2013, Vol. 25 ›› Issue (2): 86-91.doi: 10.3969/j.issn.1673-8926.2013.02.015

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Feasibility study of air foam flooding low temperature oxidation process in“three low” reservoir: A case study from Tang 80 block in Ganguyi Oilfield

ZHANG Xinchun1， YANG Xingli2， SHI Xiaowei1   

  1. 1. Institute of Exploration and Development，Ganguyi Oil Production Plant，Yanchang Oilfield Company Ltd.， Yan’an 716005，China； 2. Department of Exploration，Yanchang Oilfield Company Ltd.， Yan’an 716000，China
  • Online:2013-04-20 Published:2013-04-20

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Abstract:

The air foam flooding technology is of low-cost and high-profile drive capacity, and has broad application prospects in “three low” reservoir in Ganguyi Oilfield, which is characterized by strong heterogeneity, lack of water and low well production. In order to validate low temperature oxidation feasibility of air foam flooding, and ensure the safety of air injection, through researching application status of this technology, studying indoor dynamic and static low temperature oxidation simulation experiment and actual field test detection, this paper studied oil and air oxidation in different pressures and different temperatures, also monitored and analyzed the oxygen content in field test. The result shows that low temperature oxidation reactions can occur in this “three-low” reservoir and the reaction rate is intensified with increasing pressure.

Key words: well trajectory, horizontal well, inflow performance

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