| 疏水缔合羟乙基纤维素水溶液的流变性及驱油性能 |
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| 引用本文： | 王彦玲,仇东旭,刘承杰,赵修太,宋丽.疏水缔合羟乙基纤维素水溶液的流变性及驱油性能[J].高分子材料科学与工程,2012(7):47-50. |
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| 作者姓名： | 王彦玲 仇东旭 刘承杰 赵修太 宋丽 |
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| 作者单位： | 中国石油大学(华东)石油工程学院;中石化胜利油田分公司采油工艺研究院;中石化胜利油田分公司石油开发中心 |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金(BS2009CL019);山东省科技发展计划(2010GSF10601);中国博士后科学基金面上资助(20090451347),中国博士后科学基金特别资助(201003651) |
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| 摘 要： | 研究了疏水缔合改性羟乙基纤维素(BHEC)水溶液的流变性和驱油性能。结果表明,BHEC的临界缔合浓度在4000 mg/L左右,其增粘性能是HEC的近22倍;NaCl对BHEC水溶液有促进作用,当NaCl含量达到100000 mg/L时,BHEC的表观黏度仍然稳定在699.9 mPa.s,说明其具有良好的抗盐性。BHEC水溶液达到临界缔合浓度才具有粘弹性,并随着聚合物浓度的增加,聚合物溶液的粘弹性越显著,振荡频率越高,损耗因子越低。浓度为6000 mg/L的BHEC水溶液可在水驱基础上提高原油采收率25%~32%。
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| 关 键 词： | 疏水缔合羟乙基纤维素 流变性 粘弹性 聚合物驱 |
Rheological Behavior and Oil Displacing Performance of Hydrophobically Associating Hydroxyethyl Cellulose |
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| Yanling Wang,Dongxu Qiu,Chengjie Liu,Xiutai Zhao,Li Song.Rheological Behavior and Oil Displacing Performance of Hydrophobically Associating Hydroxyethyl Cellulose[J].Polymer Materials Science & Engineering,2012(7):47-50. |
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| Authors: | Yanling Wang Dongxu Qiu Chengjie Liu Xiutai Zhao Li Song |
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| Affiliation: | 1,3(1.College of Petroleum Engineering,Petroleum University of China,Qingdao 266555,China;2.Oil Production Technology Research Institute of Shengli Oilfield;3.Oil Development Center of Shengli Oilfield,Dongying 257000,China) |
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| Abstract: | The rheological behavior of hydrophobically associating hydroxyethyl cellulose(BHEC) was studied.The results of rheological property show that the critical aggregation concentration of BHEC is about 4000 mg/L,and its increasing viscosity property is 22 times by HEC;NaCl can promote BHEC solution,when the concentration of NaCl reaches 100000 mg/L,the apparent viscosity of BHEC remains stably at 699.9 mPa·s,so BHEC has good salt-tolerance property.BHEC achieves the certain concentration to have viscoelastic property,and with the polymer concentration increasing,the viscoelastic property of polymer solution is significantly increased.Simultaneously,the higher the oscillation frequency,the lower loss factor.When the concentration of BHEC is 6000 mg/L,the oil recovery factor of BHEC is improved 25%～32% after water flooding. |
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| Keywords: | hydrophobically associating hydroxyethyl cellulose rheological behavior viscoelasticity polymer flooding |
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