聚合物微球调驱化学机理及其在低渗油田开发中的应用  

Chemical Mechanism of Polymer Microsphere Flooding and Its Application in Low Permeability Oilfield Development

作　　者：刘一仓 郭红霞 黄昊 刘一婷 窦姝凡 权鑫 刘婷 LIU Yichang;GUO Hongxia;HUANG Hao;LIU Yiting;DOU Shufan;QUAN Xin;LIU Ting(No.11 Oil Production Plant of Changqing Oil Field Branch,Qingyang Gansu 745000,China;Shanxi Haoshou Energy Technology Co.,Ltd.,Xi'an Shaanxi 710018,China;Yangtze University,Wuhan Hubei 434023,China)

机构地区：[1]长庆油田分公司第十一采油厂,甘肃庆阳745000 [2]陕西皓首能源科技有限公司,陕西西安710018 [3]长江大学,湖北武汉434023

出　　处：《当代化工》2024年第8期1846-1849,1859,共5页Contemporary Chemical Industry

基　　金：国家自然科学基金青年基金项目(项目编号:52104032)。

摘　　要：采用反相微乳液法在实验室制备了一种聚合物纳米微球驱油剂,首先对聚合物纳米微球的物理化学性能进行了实验测试,结果显示制备的微球室温条件下可膨胀至初始的2.3倍,具备优良的耐高温、耐矿化度与堵塞性能。激光粒度仪测试结果显示初始平均粒径基本在130 nm左右。结合双管并联实验平台,进行了微球粒径、注入浓度、注入量及渗透率级差等关键因素的驱替效果分析,优选出了0.3 PV时1600 mg·L^(-1)聚合物纳米微球的最佳注入参数。结合实际矿场井组测试,进一步评价了聚合物纳米微球驱油剂的效用。A polymer nano microsphere oil displacement agent was prepared in the laboratory by the inverse micro lotion method.First,the physical and chemical properties of the polymer nano microsphere were tested.The results showed that the prepared microsphere could expand to 2.3 times of the initial value at room temperature,and had excellent high temperature resistance,mineralization resistance and plugging performance.The initial average particle size of the laser particle size analyzer test results was basically around 130 nm.Combining the dual tube parallel experimental platform,the displacement effect analysis of key factors such as microsphere particle size,injection concentration,injection amount,and permeability difference was conducted,and the optimal injection parameters of 1600 mg·L^(-1) polymer nanospheres at 0.3 PV were selected.The effectiveness of polymer nanospheres as oil displacement agents was further evaluated based on actual field well group experiments.

关 键 词：反相微乳液法 聚合物 纳米微球 驱替效果 

分 类 号：TQ047[化学工程]