Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2015, Vol. 28 ›› Issue (6): 49-54.DOI: 10.3969/j.issn.1006-396X.2015.06.010

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Research on the Method and Effect of Enhancing the Adaptability  between PolymerSurfactant Agent and Reservoir

  

  1. (1.Key Laboratory of Enhanced Oil Recovery of Education Ministry, College of Petroleum Engineering,  Northeast Petroleum University, Daqing Heilongjiang 163318, China; 2.The 8th Oil Production Plant of Daqing Oilfield, CNPC, Daqing Heilongjiang 163514, China; [JP3]3.Improved Recovery Project Department of Overseas Oilfields in Daqing Oilfield, CNPC, Daqing Heilongjiang 163711, China)
  • Received:2015-03-16 Revised:2015-08-31 Published:2015-12-25 Online:2015-12-07

改善聚表剂油藏适应性方法及其效果研究

苑盛旺1,  卢祥国1,  姜晓磊1,  曹伟佳1,  李建冰2,  俆典平3   

  1.         
    ( 1. 东北石油大学提高油气采收率教育部重点实验室, 黑龙江大庆1 6 3 3 1 8; 2. 中国石油大庆油田有限责任公司第八采油厂,
    黑龙江大庆1 6 3 5 1 4; 3. 中国石油大庆油田有限责任公司海外油田提高采收率项目部, 黑龙江大庆1 6 3 7 1 1)
  • 通讯作者: : 卢祥国( 1 9 6 0 - ) , 男, 博士, 教授, 博士生导师, 从事提高采收率理论和技术研究; E - m a i l : l u x i a n g g 2 0 0 3@a l i y u n.c o m。
  • 作者简介:苑盛旺( 1 9 9 0 - ) , 男, 硕士研究生, 从事提高采收率理论和技术研究; E - m a i l : y u a n s h e n g w a n g i 3@1 6 3. c o m。
  • 基金资助:
    黑龙江省自然科学基金重点项目资助( Z D 2 0 1 3 1 2) 。

Abstract: Molecular aggregation state of saltresistance polymer was changed by intermolecular association, which transparently enhanced its property of saltresistance. However, molecular size was increased while the state of molecular aggregation was changed. Thus the question of worse adaptability between saltresistance polymer and reservoir came out. By means of instrument analysis, chemical analysis and modern physical simulation method, taking reservoir geology, fluids and polymersurfactant agent of Daqing as research platform, regarding polymersurfactant solution viscosity, molecular thread size and seepage characteristics as evaluation index, the research on the adjusting method and effect of the state of molecular aggregation of polymersurfactant agent was carried out. The results showed that βCD could restrain the association of polymersurfactant molecules, thus reduce the size of molecular aggregation of polymersurfactant agent. All this led to the wider range of the permeability that could be flowed through. There existed a best matching relationship between polymersurfactant/βCD and core heterogeneity. On this point, the effect of enlarging sweeping volume of polymersurfactant agent was optimal and recovery efficiency reached a climax. 

Key words: Daqing oilfield,    , Polymersurfactant,    , βCD,    ,  Degree of association,    , Adaptability evaluation

摘要: 抗盐聚合物通过分子间缔合作用来改变聚合物分子聚集态, 促使其抗盐性明显提高。但改变聚合物 分子聚集态也会增加分子线团尺寸, 带来抗盐聚合物溶液油藏适应性变差问题。利用仪器分析、 化学分析和现代物 理模拟方法, 以大庆油藏地质、 流体和聚表剂为实验平台, 以聚合物溶液黏度、 分子线团尺寸、 渗流特性和采收率等 为评价指标, 开展了聚表剂溶液分子聚集体调节方法及其效果实验研究。结果表明, β - 环糊精可以抑制聚表剂分子 间缔合程度, 减小聚表剂分子聚集体尺寸, 增加可进入储层渗透率范围。“ 聚表剂/ β - 环糊精” 体系与岩心非均质性存 在最佳匹配关系, 此时聚表剂溶液扩大波及体积效果达到最佳, 采收率增幅最大。

关键词: 大庆油田, 聚表剂, &beta, - 环糊精, 缔合程度, 适应性评价

Cite this article

Yuan Shengwang,Lu Xiangguo,Jiang Xiaolei,et al. Research on the Method and Effect of Enhancing the Adaptability  between PolymerSurfactant Agent and Reservoir [J]. Journal of Petrochemical Universities, 2015, 28(6): 49-54.

苑盛旺, 卢祥国, 姜晓磊, 曹伟佳, 李建冰, 俆典平. 改善聚表剂油藏适应性方法及其效果研究[J]. 石油化工高等学校学报, 2015, 28(6): 49-54.