Polyol low damage fracturing fluid performance evaluation

Hydraulic fracturing is a low-permeability oil and gas well stimulation,wells by injection of one of the important measures.In order to reduce damage to the reservoir fracturing fluid,the water-based polyol-based formulation of fracturing fluid.Choose organic boron as a crosslinking agent,through lab experiments to determine the fracturing fluid,the best formula: polymer mass fraction of 1.8% alcohol,cross-linking the mass fraction of 0.9%,pH value regulator mass fraction of 0.16%,with reference to SY / T5621-1993 drilling test program evaluation of fracturing fluid performance.Evaluation results show that the fracturing fluid has good flow,shear and gel breaking performance,low residue levels of damage than conventional fracturing fluid reservoir.Production of oil and gas field development to provide effective technical support.