Influence of calcium of the adsorption properties of EOR polymers
- Institut Francais du Petrole, B.P. 311, 92506 Rueil-Malmaison (FR)
A controlling factor in the success of polymer flooding in enhanced oil recovery (EOR) is the adsorption of polymers on reservoir rocks. Polymer adsorption depletes polymer from the mobility control slug, leading to delayed oil recovery and thus rendering the EOR process un-economical. Although there has been extensive research in the field of polymer adsorption, a comprehensive study of adsorption of high molecular weight EOR polymers under imposed field conditions have been few. One of the commonly encountered conditions is the presence of high levels of monovalent and multivalent ions which can interact with both polymers and solid surfaces, hence complicating further the adsorption process. Others have dealt mainly with methodologies for determining the adsorption of both polyacrylamides and xanthan on mineral surfaces, and the influence of pH and monovalent ions on adsorption of these polymers. This study aims at determining the effects of divalent ions, namely calcium, on the adsorption of polyacrylamides and xanthan on mineral supports. In addition, the solution behavior of the polymers in the presence of calcium is investigated and related to the adsorption properties.
- OSTI ID:
- 6468012
- Report Number(s):
- CONF-880659-
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 33:1; Conference: ACS symposium on advances in oil field chemistry, Toronto, Canada, 5 Jun 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DISPLACEMENT FLUIDS
CHEMICAL PROPERTIES
OIL WELLS
ENHANCED RECOVERY
PETROLEUM
RESERVOIR ROCK
ACRYLAMIDE
ADSORPTION
CALCIUM IONS
HYDROPHYLIC POLYMERS
RESEARCH PROGRAMS
TECHNOLOGY ASSESSMENT
AMIDES
CHARGED PARTICLES
COLLOIDS
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GELS
IONS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
RECOVERY
SORPTION
WELLS
020300* - Petroleum- Drilling & Production
400201 - Chemical & Physicochemical Properties