黏弹性表面活性剂压裂液的研究与应用进展

黏弹性表面活性剂压裂液是以黏弹性表面活性剂为主剂的清洁压裂液。黏弹性表面活性剂压裂液体系具有破胶后无残渣、携砂性好、滤失控制性能好等特点，但随着对环保问题的日益重视及钻井深度的不断增加，丰富黏弹性表面活性剂压裂液体系迫在眉睫。本文介绍了黏弹性表面活性剂压裂液的发展和应用。根据压裂液配方不同，将其分为常规黏弹性表面活性剂压裂液和非常规新型黏弹性表面活性剂压裂液，总结了不同种类的黏弹性表面活性剂压裂液的组成、耐温耐剪切等性能及应用情况。分析表明，降低成本、研制简单的配制工艺是常规黏弹性表面活性剂压裂液的主要发展方向；在油田进行大规模实际应用及得到更完善的体系是非常规新型黏弹性表面活性剂压裂液的主要发展方向。

Progress in research and application of viscoelastic surfactant fracturing fluid

The viscoelastic surfactant fracturing fluid is a type of clean fracturing fluid with viscoelastic surfactant as its main agent. Its characterization includes no residue after gel breaking,good performances of sand-carrying,well control of filter loss and so on. However,with the increase of drilling depth and the increasing emphasis on environmental protection,it is time to expand viscoelastic surfactant fracturing fluid systems. In this paper,based on the review of literature,the developmental status and application of viscoelastic surfactant fracturing were introduced. According to the difference of the fracturing fluid formulations,it was divided into the conventional and non-conventional viscoelastic surfactant fracturing fluids. The properties and application of different kinds of viscoelastic surfactant fracturing fluids are summarized. It showed that the lower cost,simple preparation process were the main trend of conventional viscoelastic surfactant fracturing fluid. Practical applications and the better system are the main development of non-conventional viscoelastic surfactant fracturing fluid to provide reference for the related researches.