Flow Behavior and Viscous-Oil-Microdisplacement
Summary. To profoundly investigate the flow behavior and viscous-oil-microdisplacement characteristics of hydrophobically modified partially hydrolyzed polyacrylamides (HMHPAMs) as well as the effect of associating monomer content on those behaviors and characteristics, compared with partially hydrolyzed polyacrylamide (HPAM), the flow experiments through three serial mounted flat-sand
Abstract Partially hydrolyzed polyacrylamide solutions are highly shear degradable and may lose much of their effectiveness in reducing water mobility when sheared by flow through porous rock in the vicinity of an injection well. Degradation is inve
Partially Hydrolyzed Polyacrylamide - Daman international
The company is a trusted Exporter, Importer, and Supplier of Partially Hydrolyzed Polyacrylamide that is widely acclaimed by the clients due to its streamlined quality. Obtained from reliable vendors, the Partially Hydrolyzed Polyacrylamide offered by the company has an accurate formulation.
Partially hydrolyzed polyacrylamide (HPAM) as the main component of slickwater fracturing fluid is a shear-sensitive polymer, which suffers from mechanical degradation at turbulent flow rates. Five different concentrations of HPAM as well as mixtures of polyacrylamide/xanthan gum were prepared to investigate the possibility of improving shear stability of HPAM.
Effect of Polymer Adsorption on Permeability Reduction
In order to reduce the permeability to water or brine, there is a possibility of polymer injection into the reservoir. In the present work, special focus has been paid in polymer [partially hydrolyzed polyacrylamide (PHPA)] injection as a part of chemical method. Tests were conducted in the laboratory at the ambient temperature to examine the reduction in permeability to water or brine in the
We hereby employ molecular dynamics (MD) simulations (鈭? 渭s in total) to investigate the chain dynamics, aggregation, and interfacial properties of the partially hydrolyzed polyacrylamide (HPAM) polymer. HPAM is widely used in chemical enhanced oil recovery (cEOR) applications. The conformational changes and aggregation properties are examined in different conditions simulating cEOR activities.
A review on applications of nanotechnology in the enhanced
In enhanced oil recovery, a dilute aqueous solution of partially hydrolyzed polyacrylamide is used as a pushing fluid in the injection wells to sweep oil in the reservoir into the production well. Mobility reduction or viscosity behavior of partially hydrolyzed polyacrylamide polyelectrolyte solutions plays an important role in such applications.
Polymer injection is one of the most applications used in enhanced oil recovery. In order to achieve better sweeping efficiency, polymer is added to the injected water to increase its viscosity and ultimately minimize the viscous fingering. Partially hydrolyzed polyacrylamide (HPAM) is one of the polyacrylamide groups.
Table of Contents - CORE
In this study, partially hydrolyzed polyacrylamide was cross-linked with polyethylene imine. This system is currently used reservoir water shut-off treatments. At the reservoir conditions, the polymer and the cross-linker react to form a three dimensional structure that will block the flow of water through the porous rock. The
Polyacrylamide (PAM) is the most inorganic polymer type which is usually used in injection for enhanced oil recovery. Furthermore, hydrolyzed polyacrylamide (HPAM) is a common polymer used in polymer injection, but it has the sensitivity towards salinity and temperature. Thus, the experiment modified PAM and HPAM with silica aims to improve the performance of polymer toward temperature and
Molecular Morphology and Viscoelasticity of ASP Solution
2.2. Chemicals. The polymer used to prepare ASP solution in this experiment is partially hydrolyzed polyacrylamide (HPAM), with relative molecular weights of 16 million, 19 million, and 25 million and a hydrolysis degree of about 26% (Daqing Oilfield Production Technology Research Institute, Daqing, China).
Polymer injection is one of the most applications used in enhanced oil recovery. In order to achieve better sweeping efficiency, polymer is added to the injected water to increase its viscosity and ultimately minimize the viscous fingering. Partially hydrolyzed polyacrylamide (HPAM) is one of the polyacrylamide groups.
