... enhanced recovery alkali consumption fluid loss control carbonate chemical flooding methods chemical consumption precipitate tech Use of alkaline chemicals to enhance oilfield recovery has aroused much interest in recent years. The subject has been studied by several workers as prelude...

... adsorption or retention in Berea cores, and improvement in oil recovery. The alkaline chemicals studied were sodium silicates, sodium phosphates, sodium carbonate, and sodium hydroxide. In addition, optimal salinities and surfactant average equivalent molecular weight for the recovery of two midcontinent...

... dynamics acidization rate constant porosity carbonate The matrix acidization of sandstone by an HCl/HF acid mixture is an often-employed oilwell stimulation technique designed to increase permeability in a zone around the wellbore. The acid mixture flowing into the porous medium reacts...

... was useful over a wider range of conditions. 9 7 1979 27 6 1980 28 4 1980 1 10 1980 1 10 1980 Copyright 1980, Society of Petroleum Engineers well logging p-wave interference shear velocity amplitude Upstream Oil & Gas seismic camera display receiver carbonate...

.... The technique has been used successfully to obtain meaningful relative permeability curves for piston-like displacement, mixed wettability systems, piston-like displacement, mixed wettability systems, and heterogeneous carbonates. The technique has also been used in evaluating empirical equations...

..., carbonate decomposition, and thermal conductivity were investigated. No visible fracturing or exfoliation was found to occur in oil shales retorted under confining stresses of 100 to 2,500 psig. Pore structure, however, is created by removal of oil and water, decomposition of carbonates and the creation...