| 低渗透油藏高浓度表面活性剂体系降压增注试验研究 |
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| 引用本文： | 冯岸洲,张建强,蒋平,仉莉,张贵才,葛际江.低渗透油藏高浓度表面活性剂体系降压增注试验研究[J].油田化学,2011,28(1). |
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| 作者姓名： | 冯岸洲 张建强 蒋平 仉莉 张贵才 葛际江 |
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| 作者单位： | 中国石油大学(华东)石油工程学院,山东,青岛,266555 |
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| 基金项目： | 国家高技术研究发展专项项目“与蒸汽吞吐结合的表面活性剂驱油体系研究”(项目编号2007AA06Z201); 教育部新世纪优秀人才支持计划(项目编号NECT-07-0846); 中国石油大学引进人才科研基金资助“稠油油藏化学驱微观驱油机理研究” |
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| 摘 要： | 针对低渗透油藏注水井注入压力高的问题,开展了高浓度表面活性剂体系降压增注室内实验研究.以增溶量为指标,通过微乳液配制方法,对阴离子和两性表面活性剂进行了筛选和配方优化,得到一种降压效果好的体系:13.3%表面活性剂HEX+2.23%正丙醇+4.47%正丁醇,其增溶量达0.66 g/g.该体系耐盐性能良好,在1～200g/L含盐量范国内均能形成水外相微乳液.该体系的矿场岩心驱替实验结果表明:注入的7.5 PV浓表面活性剂体系在岩心中与残余油形成水外相微乳液,降低水驱注入压力35%以上;浓度和注入段塞大小对降压增注效果的影响结果表明:该体系注入浓度为100g/L、注入段塞1 PV时便有很好的降压效果.
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| 关 键 词： | 低渗透油藏 表面活性剂 降压增注 微乳液 复配体系 |
Experimental Study of Depressurization and Augmented Injection by High Concentration Surfactant System for Low Permeability Reservoir |
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| FENG An-Zhou
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ZHANG Jian-Qiang
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JIANG Ping
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ZHANG Li
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ZHANG Gui-Cai
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GE Ji-Jiang.Experimental Study of Depressurization and Augmented Injection by High Concentration Surfactant System for Low Permeability Reservoir[J].Oilfield Chemistry,2011,28(1). |
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| Authors: | FENG An-Zhou ZHANG Jian-Qiang JIANG Ping ZHANG Li ZHANG Gui-Cai GE Ji-Jiang |
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| Affiliation: | FENG An-Zhou,ZHANG Jian-Qiang,JIANG Ping,ZHANG Li,ZHANG Gui-Cai,GE Ji-Jiang (College of Petroleum Engineering,China University of Petroleum(East China),Qingdao,Shandong 266555,P R of China) |
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| Abstract: | Aimed at the problem of high injection pressure for low permeability reservoirs,the experiments of high concentration surfactant system for depressurization and augmented injection were developed in the laboratory.With solubilization capability as criteria,the formulation was screened from anionic and amphoteric surfactants by the method of microemulsion preparation;finally,the optimized depressurized system was obtained as follows,13.3% surfactant HEX+2.23% n-propanol +4.47% n-butanol,the solubilization ca... |
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| Keywords: | low permeability reservoir surfactant depressurization and augmented injection microemulsion combinational systems |
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