Novel CO{sub 2}-thickeners for improved mobility control

Enick, Dr. Robert M. ; Beckman, Dr. Eric J. ; Hamilton, Dr. Andrew

National Petroleum Technology Program (U.S.)

关键词: Oil Wells;    02 Petroleum;    Styrene;    Fluorinated Aliphatic Hydrocarbons;    Displacement Fluids;   

DOI  :  10.2172/750876
RP-ID  :  DOE/BC/15108-4
RP-ID  :  AC26-98BC15108
RP-ID  :  750876

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this study was to design, synthesize, and characterize thickening agents for dense carbon dioxide and to evaluate their solubility and viscosity-enhancing potential in CO{sub 2}. Hydrocarbon-fluorocarbon random copolymers, sulfonated hydrocarbon-fluorocarbon random copolymers, semifluorinated trialkyltin fluorides and small hydrogen-bonding compounds have been evaluated. Random copolymers of styrene and heptadecafluorodecyl acrylate yielded substantial increases in viscosity. Falling cylinder viscometry results indicated that the 29%styrene--71%fluoroacrylate bulk-polymerized copolymer induced very significant viscosity increases at copolymer concentrations of 0.1--5.0wt%.