chemical flooding, especially alkaline/surfactant/polymer flooding, is of increasing interest due to the world increasing oil demand. this work shows the aspects of using alkaline/surfactant/polymer as an enhanced oil recovery method in the porous media having a high dead-end pore frequency with various dead-end pore parameters (such as opening, depth, aspect ratio, and orientation). using glas...

Chemical flooding, especially alkaline/surfactant/polymer flooding, is of increasing interest due to the world increasing oil demand. This work shows the aspects of using alkaline/surfactant/polymer as an enhanced oil recovery method in the porous media having a high dead-end pore frequency with various dead-end pore parameters (such as opening, depth, aspect ratio, and orientation). Using glas...

purification of drinking and industrial water required usage of high molecular weight polymer to cause flocculation process of dispersed suspension of contaminants. polyelectrolytes, including ionic polyacrylamide are especially appropriate for these purposes, because in this case the suspension stability can be controlled by both steric and electrostatic forces. thus the influence of solution ...

This study has been investigated, the effects of three different polar polyacrylamides (anionic, cationic, and nonionic) on asphaltene deposition in porous media. All experiments were carried out in various dead oil flow rates (0.2, 0.1 and 0.02 cc/min) and different polymer concentrations (500, 2500, 4000 ppm). The results indicated that asphaltene precipitation was affected by the presence of...

this study has been investigated, the effects of three different polar polyacrylamides (anionic, cationic, and nonionic) on asphaltene deposition in porous media. all experiments were carried out in various dead oil flow rates (0.2, 0.1 and 0.02 cc/min) and different polymer concentrations (500, 2500, 4000 ppm). the results indicated that asphaltene precipitation was affected by the presence of...

Excessive water production impacts the economics of petroleum reservoir and often leads to their premature shut-in. Production high saline represents a major corrosion for casing, tubing, flow lines, facilities. Polymer solution has been used control plug in high-temperature reservoirs. Most these polymer solutions consist polyacrylamide-based an organic or inorganic cross linker. Polyethylene m...

a recognition of appropriate soil erosion control methods along with the use of convenient alternatives in erosion control are necessary for a proper management of natural resources. run off control through polymers is one of the new methods employed in reducing soil erosion. this research was conducted to evaluate the effects of a polymer, called anionic polyacrylamide, on soil infiltarion rat...

Abstract Polymer flooding is an Enhanced oil recovery (EOR) method using chemicals, such as xanthan gum and polyacrylamide which are widely used in the field. can improve mobility of injection fluid, but reservoir polymer has interaction with sand known adsorption causes some to be bound surface pore sand, so that it impact on ineffectiveness injection. The purpose this study want determine com...

A simple two-steps polymerization method was used to prepare a polyacrylamide hydrogel with a full interpenetrating network structure based on the sorption and porous properties of polyacrylamide superabsorbent. In conditions of 10 g acrylamide monomer, 0.04 g crosslinker for the first polymerization and the second polymerization, respectively, and the swelling ratio of 9, the hydrogel possesse...

1Plant Molecular and Cellular Genetics Lab, School of Agriculture and Home Economics, Tuskegee University, Tuskegee, Alabama 36088-1614; 2USDA/ARS, Plant Introduction Station, Griffin, Georgia 30223; 3Department of Plant Pathology, Auburn University, Alabama 36849 Agarose is the preferred matrix for resolving DNA fragments resulting from PCR amplifications using arbitrary primers for the detect...