.... As a result, less acid might be needed to perform the stimulation job. Introduction The presence of foam in a heterogeneous porous media helps to reduce the liquid mobility in the high permeability layers. This reduction in mobility causes the diversion of most of the liquid to the lower permeability...

... experiments show that ultrasonic treatment can reduce plugging in two waysthe first is the reduction in oil viscosity (especially in the presence of asphaltic crudes) and the second is the ability of ultrasound to keep particles in suspension. The second effect can be due to generation of microbubbles...

... and materials have resulted in a significant reduction in the number and severity of SCVLs. This paper details the combinations and results of the approaches used. Introduction The primary objective of a successful cementing operation is the complete displacement of drilling fluids and solids from...

... enhanced oil recovery air emission greenhouse gas emission greenhouse effect co 2 climate change reduce emission enhanced recovery petroleum society eor project chemical flooding methods reduction regulation upstream oil & gas emission ISSUES ON ECONOMICS AND ENVIRONMENT OF CO2...

... with the addition of 73.1 sm 3 m 3 / of carbon dioxide al 7 MPa, an eighteenfold reduction. The same reduction in viscosity would require heating the sample to approximately 80 °C. The above oil, under similar conditions, increased in density from 963.0 kg/ m 3 to 974.3 kg/ m 3 and swelled approximately 15...

.... Laboratory research conducted in the 1950s identified several aspects of carbon dioxide flooding such as viscosity reduction, oil swelling, miscibility effects, and solution gas drive. Both laboratory and field studies have been conducted to determine the effectiveness of the carbon dioxide process for heavy...

... than two decade and several techniques have been proposed in the literature 1–2 to control the mobility of water or gas. One of these techniques is the use of polymer solutions as a slug. reduction farouq ali polymer nood permeability contrast waler bottom-water zone polymer...

... reduction in Viscosity and a 16% Increase In the swelling factor were observed in the heavy oil-CO 2 system. Carbon dioxide once dissolved in the heavy oil at a high pressure remains in solution even when the pressure is reduced. Waterflooding of the oil-saturated core produced 31.5 to 46.2% initial oil...