摘要
以当前各大油田储层矿物组成情况为基础,研究了油田常见4种黏土矿物(高岭石、蒙脱石、绿泥石、伊利石)对化学驱提高采收率的影响。通过在石英砂中添加相同含量的不同黏土,进行了室内填砂管模拟实验研究。结果表明,黏土矿物的存在对化学驱提高采收率有很大的影响,含有黏土矿物的模型化学驱提高采收率明显要低于纯石英砂模型;在相同含量的黏土中,蒙脱石矿物对化学驱提高采收率影响最大;绿泥石的存在对聚合物注入压力有很大影响。
Based on the mineral composition of the current reservoirs,the influence of four kinds of clay minerals(kaolin,montmorillonite,chlorite and illite)on the recovery rate of chemical flooding is studied.By adding different clay minerals with the same content in quartz sand,the simulation experiment of indoor sand filling pipe was carried out.The results show that the existence of clay minerals has a great influence on the enhanced oil recovery of chemical flooding,and the enhanced recovery ratio of the chemical flooding with clay minerals is obviously lower than that of the pure quartz sand model.In the same content of clay minerals,montmorillonite have the greatest impact on chemical flooding.The presence of chlorite has a great influence on the injection pressure of polymer.
作者
杜春泽
刘卫东
孙灵辉
丛苏男
支联有
杨烨
王磊
曾利军
DU Chun-ze;LIU Wei-dong;SUN Ling-hui;CONG Su-nan;ZHI Lian-you;YANG Ye;WANG Lei;ZENG Li-jun(University of Chinese Academy of Sciences,Beijing 100190,China;Institute of Porous Flow and Fluid Mechanics,Chinese Academy of Science,Langfang 065007,China;Research Institute of Petroleum Exploration and Development,PetroChina,Langfang 065007,China;Exploration and Development Research Institute,Huabei Oilfield Company,PetroChina,Renqiu 062552,China)
出处
《应用化工》
CAS
CSCD
北大核心
2018年第11期2314-2316,共3页
Applied Chemical Industry
基金
国家油气重大专项化学驱提高采收率技术(2016ZX05010-004).
关键词
黏土矿物
采收率
吸附
驱油效果
化学驱
填砂管模型
clay mineral
recovery ratio
adsorption
oil displacement effect
chemical flooding
sand-fill pipe model
