Abstract: Fracturing fluid is one of the most important elements for ensuring successful fracture operations. It must be viscous enough and capable of carrying sands deep into the fractures created in the reservoirs. With the fullest exploitation of the power of fracturing units, fracturing fluids should be used with the minimum damage to the reservoirs to achieve the maximum benefit. Wide differences of geological and physicochemical properties exist between reservoirs of different permeability. Application of many of the conventional fracture fluids suitable for reservoirs with high permeability may bring harm to reservoirs of low permeability. The authour has proposed some of the essential requirements in the choice of fracture fluids for lowpermeability reservoirs that are technologically rational and economically feasible.