文献类型：期刊文献

中文题名：粘弹性清洁压裂液的研究与应用

英文题名：STUDY AND APPLICATION OF VISCOELASTIC SURFACTANT-BASED FRACTURING FLUID

作者：卢拥军[1];房鼎业[1];杨振周[2];宫长利[3];王海楼[3];强会彬[3]

机构：[1]华东理工大学化工学院;[2]中国石油勘探开发研究院廊坊分院;[3]吉林石油集团公司井下工程公司

年份：2004

卷号：33

期号：2

起止页码：113

中文期刊名：石油与天然气化工

外文期刊名：Chemical engineering of oil & gas

收录：北大核心:【北大核心2000】；CSCD:【CSCD_E2011_2012】；

基金：国家 973项目 ;编号为 2 0 0 1CB2 0 91 0 7;国家自然科学基金资助项目 (2 0 2 760 1 6)

语种：中文

中文关键词：压裂液;VES-70;表面活性剂;油气藏;储层;孔隙度

外文关键词：viscoelastic surfactant, viscoelasticity, frictional resistance,clean fracturing fluid, field application

摘要：针对吉林油田油藏特点 ,优化出了VES - 70粘弹性清洁压裂液配方体系。分析了粘弹性清洁压裂液的水溶液增粘特性、耐温耐剪切性能、破胶性能、动态滤失与损害性能 ,介绍了现场应用工艺和应用效果。研究结果表明 ,该清洁压裂液应用简便 ,直接将粘弹性表面活性剂加入清水中 ,即可形成粘弹性凝胶 ,具有明显的网络结构 ,粘弹性好、剪切稳定性强、支撑悬浮力好、施工摩阻低 ,可控制裂缝的有效延伸 ,增产效果显著。
The viscoelastic surfactant-based polymer-free fracturing fluid(VES)is a new fracturing fluid. Its properties of heat and shear resistant, breaking down,clean-up, fluid leakoff, core-damage were studied, and its applications in 3 wells were briefly presented. The results showed that this fluid containing quaternary ammonium salt has viscoelasticity. The gelation time is 0.5～1.0 min at pH=7.0 and temperature 20～30℃,the apparent viscosity of 4% VES-70 solution under 170s -1 shear rate is 175MPa·s. The gelled fluid completely breaks down in 30min at 40～70℃ mixing with crude oil. The damage of core is very low, the retained permeability is 96.16%. Application of this fracturing fluid is suitable to VES concentration 2%～4%, pH 7～8 and temperature below 80℃. In Jilin Oilfield, 3 wells were fractured by using this fluid and with success of increased oil productivity.