新疆石油地质

›› 2016, Vol. 37 ›› Issue (6): 1-1.doi: 10.7657/XJPG20160611

• 论文 •    

苏德尔特油田强水敏储集层CO2混相驱试验

程杰成1，姜洪福2，雷友忠1，庞志庆1，汪艳勇1，安平2   

  1. (1.中国石油 大庆油田有限责任公司,黑龙江 大庆 163453;2.中国石油 大庆油田有限责任公司 海拉尔石油勘探开发指挥部,黑龙江 大庆 163453)
  • 出版日期:2019-01-01 发布日期:1905-07-17

Study on Miscible CO2 Flooding Test in Strong Water-Sensitive Reservoirs in Sudert Oilfield

CHENG Jiecheng1, JIANG Hongfu2, LEI Youzhong1, PANG Zhiqing1, WANG Yanyong1, AN Ping2   

  1. (1.Daqing Oilfield Company Limited, PetroChina, Daqing, Heilongjiang 163453, China; 2.Hailar Exploration and Development Administration, Daqing Oilfield Company Limited, PetroChina, Daqing, Heilongjiang 163453, China)
  • Online:2019-01-01 Published:1905-07-17

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摘要： 针对苏德尔特油田下侏罗统兴安岭组油层水敏性强、注水开发效果差的实际情况，2011年优选B14区块开展了CO2混相驱试验。实验室细管实验测试原油与CO2的最小混相压力为16.6 MPa，比原始地层压力低1.0 MPa，可实现CO2混相驱。矿场试验结果表明，实施CO2混相驱后，注入能力明显提高，油井产量大幅上升，储集层动用程度增大，构造高部位和人工裂缝方向是受效的优势方向；CO2混相驱能够为强水敏储集层有效补充能量，不失为改善开发效果和提高采收率的一种新方法。

Abstract: In view of the actual situations such as strong water sensitivity and poor water injection effect of the Lower Jurassic Hinggan reservoir in Sudert oil field, the Block B14 was selected for miscible CO2 flooding test in 2011. The obtained minimum miscible pressure of crude oil and CO2 is 16.6 MPa from slim tube test in laboratory, 1.0 MPa lower than the original formation pressure, which indicates that miscible CO2 flooding could be realized. The field test result shows after the implementation of miscible CO2 flooding, the injectivity and the oil production are significantly improved, the reservoir producing degree are increased and the structural high and artificial fracture strikes are the predominant directions; miscible CO2 flooding can replenish energy for strong water-sensitive reservoirs effectively, so it could be a new method to improve development effect and enhance oil recovery

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