Based on the results of the filtration experiments conducted on core samples of terrigenous strata V13 of the Nepa suite of the Ignyalinsky field, the main mechanisms of the effect of water of different degrees of mineralization and process fluids (fracturing fluid, drilling fluid) on the filtration properties of the reservoir (relative permeability to oil), were revealed. It has been shown that the key factors determining the magnitude and direction (improvement/deterioration) of technogenic changes in the reservoir are: the degree of its salinization, mineralization of the stimulating agent and heterogeneity of the pore volume structure. The results of special filtration experiments on dynamic desalinization of V13 stratum during injection of low-mineralized water, study of fracturing fluids and drilling fluids are presented.

Keywords:
drilling fluid chemistry, drilling fluid property, Fluid Dynamics, water saturation, flow in porous media, Upstream Oil & Gas, process fluid, drilling fluid selection and formulation, drilling fluid formulation, residual water saturation
Subjects:
Drilling Fluids and Materials, Reservoir Fluid Dynamics, Improved and Enhanced Recovery, Formation Evaluation & Management, Drilling fluid selection and formulation (chemistry, properties), Flow in porous media
Copyright 2017, Society of Petroleum Engineers
You can access this article if you purchase or spend a download.