新型连续混配型清洁压裂液体系研究  

Study on in-situ continuously-mixed viscoelastic surfactant fracturing fluids

作　　者：高洁[1,2] 吴金桥 许亮 张军涛 何静 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]陕西延长石油(集团)有限责任公司研究院,陕西西安710075 [3]陕西延长石油(集团)有限责任公司油田股份公司,陕西延安716000

出　　处：《应用化工》2011年第11期1932-1934,共3页Applied Chemical Industry

基　　金：陕西延长石油(集团)有限责任公司科技计划项目(ycsy2010ky-B-27)

摘　　要：通过对粘弹性表面活性剂分子结构的分析,筛选出了低温下溶解性能好、易成胶的长链烷基季铵盐表面活性剂VES-1、VES-2,并通过与激活剂(水杨酸钠)、聚合醇等进行配方优化组合,确定了YCQJ-2清洁压裂液稠化剂的配方,同时评价了1.0%～5.0%YCQJ-2清洁压裂液的性能。结果显示,YCQJ-2清洁压裂液稠化剂与清水按照一定比例混合,即可形成粘弹性较好的冻胶,破胶容易,表/界面张力低,对岩心的伤害率低于15.0%,而且可以实现就地连续混配、连续施工,简化了施工程序,节约成本,保护环境。Two quarternary ammonium salt surfactants VES-1 and VES-2,which have good solubility in low temperature,were screened by analyzing molecular structure of viscoelastic surfactant.By optimum ratio of VES-1,VES-2 and other components,a novel viscoelastic surfactant thickening agent（YCQJ-2） was prepared and performance of YCQJ-2 clean fracturing fluid was evaluated.The results showed that a viscoelastic fracturing fluid would be formed when the thickening agent（YCQJ-2） mixed with fresh water in certain proportion.And the clean fracturing fluid,which has the characteristics of good rheological property,easily to be broken down,low damage to formation（15.0%）,can be continuously prepared and pumped in-situ during fracturing treatment process.

关 键 词：连续混配 粘弹性表面活性剂 清洁压裂液 性能评价 

分 类 号：TQ216[化学工程—有机化工] TE39[石油与天然气工程—油气田开发工程]