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;    Enhanced Recovery;    Displacement Fluids;    Viscosity;   

DOI  :  10.2172/750873
RP-ID  :  DOE/BC/15108-1
RP-ID  :  AC26-98BC15108
RP-ID  :  750873

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this study was to incorporate carbon dioxide-philic functionalities into the structure of a telechelic ionomers in an attempt to design a carbon dioxide-thickener. Alkyl analogs of these end-functionalized polymers have been successfully employed in dilute concentration to increase the viscosity of organic liquids or to induce gelation. The ionic end-groups associated in solution, establishing a viscosity enhancing macromolecular structure. More dramatic viscosity changes have been attained at very dilute concentrations with low MW associating compounds than with ultra-high MW polymers. The apparent molecular weight of the associative network greatly exceeds the MW of the covalently-bounded polymer in solution, yet the relatively low molecular weight of the compound favors its solubilization.