LABORATORY ANALYSIS OF RESIDUE DUE TO HIGH SALINITY OF PRODUCE WATER BASED FRACTURING FLUID

Abstract

The residue created by water-based fracturing fluids is still a shortcoming in their application. This is related to formation damage induced by hydraulic fracturing. The use of water in the manufacturing of water-based fracturing fluids is one of the sources of the ensuing residue level. Production water has been extensively researched as a source of water for the production of fracturing fluids. Previous research has found that the presence of monovalent and divalent ions influences the viscosity of the fracturing fluid. Furthermore, dissolve ions in the produce water also increase the water salinity value. Based on these phenomena, more research is needed to determine the effect of dissolved ions and water salinity on viscosity and residue of produce water based fracturing fluid. An examination of the influence of produce water salinity on the residue was carried out in the laboratory using a centrifuge method. Residue testing was carried out after testing the viscosity and breaktime in a water bath at 70 0C. This study found that increasing the dissolved ion content in production water, both monovalent and divalent, reduces viscosity, but the resultant residue is still larger than when using tap water at the same thickener, crosslink, and breaker concentrations.