新型清洁压裂液的流变性实验研究  

Experimental Study on Rheology of New Clean Fracturing Fluid

作　　者：林波[1] 刘通义[1,2] 赵众从[1] 向静[1] 周锋[3] 

机构地区：[1]西南石油大学化学化工学院 [2]四川光亚聚合物化工有限公司 [3]吉林油田钻井工艺研究院

出　　处：《钻井液与完井液》2011年第4期64-66,96-97,共3页Drilling Fluid & Completion Fluid

摘　　要：基于清洁压裂液和黏弹性表面活性剂的研究思路,综合应用分子缔合形成结构流体的理论,研制出了一种新型的清洁压裂液增稠剂及压裂液体系——GRF清洁压裂液。运用RS6000型流变仪对该压裂液的抗温性、抗剪切性能,黏弹性及触变性等进行了测定。通过大量实验表明,该压裂液具有良好的抗温、抗剪切性能;在低于动态屈服应力下该体系储能模量G′恒大于耗能模量G″,是典型的黏弹性结构流体;并且其触变性对降低流体摩阻起到了决定性作用。这些良好的流变特性使得GRF压裂液的现场应用取得了比常规压裂液更好的增产效果。Based on the idea of cleaning fracturing fluid and viscoelastic surfactant,a new clean fracturing fluid system GRF is developed by applying the theory of molecular association forming a structural fluid.The rheometer RS6000 is used to test the performances of the fracturing fluid system,and the experimental results show that it has good thermo-stability and shearing resistance.Also the system's G' aways larger than G' in the condition that shear stress is lower than the dynamic yield stress,consequently,it is a typical viscoelastic structure fluid,and the thixotropy plays a decisive role in reducing the friction of the fluid,these properties make the GRF fracturing fluid system achieves better stimulation effectiveness than conventional.

关 键 词：清洁压裂液 流变性 黏弹性 储能模量 耗能模量 触变性 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]