Abstract:

The introduction of viscoelastic surfactant (VES) , or clear fracturing fluids (ClearFRAC fluid) , which is capable of eliminating polymer damage while enhancing conductivity of proppant packs , has changed the way of proppant transport by traditional polymer fracturing fluids. The paper has summed up
and reviewed systems of present hydraulic fracturing fluid at home and their shortcomings , and summarized the development , the theory basis and cases of successful fracturing treatments of ClearFRAC fluid in abroad. Field results have shown that the performances of the ClearFRAC fluid are better than
polymer fracturing fluid , which are high effective and nonOdamages over conventional polymer fluid systems. Some comments on the studies of ClearFRAC fluid in our country have been giv2 en in this paper.

Key words: fracturing fluid, ClearFRAC fluid, fracturing fluid additive, reservoir protection