适合高温高矿化度油藏的新型聚合物驱油剂研究  

Study on new polymer flooding agent suitable for high temperature and high salinity reservoir

作　　者：张成 赵海涛 熊跃武 陈娜 胡延军 ZHANG Cheng;ZHAO Hai-tao;XIONG Yue-wu;CHEN Na;HU Yan-jun(No.7 Oil Production Plant,Daqing Oilfield Co.,Ltd.,Petro China,Daqing 163311,China;No.2 Oil Production Plant,Daqing Oilfield Co.,Ltd.,Petro China,Daqing 163311,China;No.5 Oil Production Plant,Daqing Oilfield Co.,Ltd.,Petro China,Daqing 163311,China;d.No.6 Oil Production Plant,Daqing Oilfield Co.,Ltd.,Petro China,Daqing 163311,China)

机构地区：[1]中国石油大庆油田有限责任公司第七采油厂,黑龙江大庆163311 [2]中国石油大庆油田有限责任公司第二采油厂,黑龙江大庆163311 [3]中国石油大庆油田有限责任公司第五采油厂,黑龙江大庆163311 [4]中国石油大庆油田有限责任公司第六采油厂,黑龙江大庆163311

出　　处：《化学工程师》2022年第7期51-54,共4页Chemical Engineer

基　　金：国家科技重大专项“大型油气田及煤层气开发”(2016ZX05046-004)。

摘　　要：为了继续提高高温高矿化度油藏水驱开发后的采收率,室内以两性离子单体TBS和丙烯酰胺AM为合成原料,制备了一种耐温抗盐性能较好的新型聚合物驱油剂TBS-2,并对其综合性能进行了评价。实验结果表明,新型聚合物驱油剂TBS-2具有良好的增黏性能,当其质量浓度为3000mg·L^(-1)时,溶液黏度值可以达到200mPa·s以上;聚合物驱油剂TBS-2具有良好的耐温性能,聚合物溶液在120℃下老化24h后,黏度保留率仍在50%以上;聚合物驱油剂TBS-2具有良好的抗盐性能,随着实验用水矿化度的不断升高,聚合物溶液的黏度值逐渐升高;此外,聚合物驱油剂TBS-2还具有良好的黏弹性能和驱油性能,注入0.5PV浓度为3000mg·L^(-1)的聚合物溶液后,可使岩心水驱后的采收率继续提高15%以上,驱油效果较好。In order to continue to improve the recovery after water flooding development of high temperature and high salinity reservoir,a new polymer flooding agent TBS-2 with good temperature and salt resistance was prepared with zwitterionic monomer TBS and acrylamide am as synthetic raw materials,and its comprehensive performance was evaluated.The experimental results show that the new polymer flooding agent TBS-2 has good viscosity increasing performance.When its mass concentration is 3000mg·L^(-1),the solution viscosity can reach more than 200mPa·s;Polymer flooding agent TBS-2 has good temperature resistance.After the polymer solution is aged at 120℃for 24 hours,the viscosity retention is still more than 50%;Polymer flooding agent TBS-2 has good salt resistance.With the increasing salinity of experimental water,the viscosity of polymer solution increases gradually;In addition,polymer flooding agent TBS-2 also has good viscoelastic performance and oil displacement performance.After injecting a polymer solution with a concentration of 0.5PV of 3000mg·L^(-1),the oil recovery after rock core water flooding can continue to increase by more than 15%,and the oil displacement effect is good.

关 键 词：高温高矿化度 聚合物 驱油剂 耐温抗盐 驱油性能 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]