In recent years,extensive attention is poured into the waterfrac treatment for its simple application and low fracturing costs,and it has already made an obvious effect to increase the yield for the fracturing in some low permeability reservoirs.

VES is successfully used in clean acidizing and clean fracturing in Qinghai Oilfield,by which a stimulation technique is provided for the oilfield,especially for extra.

Laboratoryresearch on clean fracturing fluid VES-80;

Therefore,in allusion to geological properties of strong water sensitivity of reservoir,compound fracturing technology of guanidine gum and clean fracturing fluid is selected preferentially.

The clean fracturing fluid was employed to improve individual well production and minimize the coal bed damage.

This article introduces the field applications of the ClearFRAC fluid of Dowell Co.

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.