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Title: Behavior of polymers in porous media

Abstract

Polyacrylamide (and the partially hydrolyzed form) and biopolysaccharide (produced by the plant pathogen Xanthomonas compestries) are compared for use in enhanced oil recovery. The viscosity imparted to a waterflood by polysaccharide is less reduced by mechanical degradation and increased salt concentration than is the case for the acrylamide thickened flood. Large amounts of the polyacrylamide are required for high permeability rock and a highly saline aqueous phase. The biopolymer degrades chemically at high temperatures. However, the thermal stability of the acrylamide is not established above 140/sup 0/F. The polyacrylamide has relatively long-term stability, unlike the biopolymer. This lack of long-term stability for the biopolymer is not entirely due to the presence of oxygen in the flood. Both polymers form gels under various conditions. Gel formation occurs if the biopolymer flood contains multivalent cations, comes in contact with alkaline minerals in the reservoir rock, and has the appropriate pH. The polyacrylamide flood forms gels or precipitates with certain organic cations and multivalent inorganic cations. It was noted that the transport properties of the biopolymer flood may be a function of pH.

Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
7301321
Resource Type:
Conference
Resource Relation:
Conference: Improved oil recovery symposium of the Society of Petroleum Engineers, Tulsa, OK, USA, 22 Apr 1974; Related Information: Preprint No. 4748
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; POLYAMIDES; COMPARATIVE EVALUATIONS; POLYSACCHARIDES; ENHANCED RECOVERY; OIL WELLS; PETROLEUM; PH VALUE; POROUS MATERIALS; WELL STIMULATION; CARBOHYDRATES; ENERGY SOURCES; FOSSIL FUELS; FUELS; MATERIALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; SACCHARIDES; WELLS; 020300* - Petroleum- Drilling & Production

Citation Formats

Hill, H J, Brew, J R, Claridge, E L, Hite, J R, and Pope, G A. Behavior of polymers in porous media. United States: N. p., 1974. Web.
Hill, H J, Brew, J R, Claridge, E L, Hite, J R, & Pope, G A. Behavior of polymers in porous media. United States.
Hill, H J, Brew, J R, Claridge, E L, Hite, J R, and Pope, G A. Tue . "Behavior of polymers in porous media". United States.
@article{osti_7301321,
title = {Behavior of polymers in porous media},
author = {Hill, H J and Brew, J R and Claridge, E L and Hite, J R and Pope, G A},
abstractNote = {Polyacrylamide (and the partially hydrolyzed form) and biopolysaccharide (produced by the plant pathogen Xanthomonas compestries) are compared for use in enhanced oil recovery. The viscosity imparted to a waterflood by polysaccharide is less reduced by mechanical degradation and increased salt concentration than is the case for the acrylamide thickened flood. Large amounts of the polyacrylamide are required for high permeability rock and a highly saline aqueous phase. The biopolymer degrades chemically at high temperatures. However, the thermal stability of the acrylamide is not established above 140/sup 0/F. The polyacrylamide has relatively long-term stability, unlike the biopolymer. This lack of long-term stability for the biopolymer is not entirely due to the presence of oxygen in the flood. Both polymers form gels under various conditions. Gel formation occurs if the biopolymer flood contains multivalent cations, comes in contact with alkaline minerals in the reservoir rock, and has the appropriate pH. The polyacrylamide flood forms gels or precipitates with certain organic cations and multivalent inorganic cations. It was noted that the transport properties of the biopolymer flood may be a function of pH.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1974},
month = {1}
}

Conference:
Other availability
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