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- Title
Formulation of a Self-Assembling Polymeric Network System for Enhanced Oil Recovery Applications.
- Authors
Wei, Bing; Romero‐Zerón, Laura; Rodrigue, Denis
- Abstract
ABSTRACT The chemical formulation and rheological properties of a novel self-assembling polymer (SAP) network system were investigated for potential application in enhanced oil recovery (EOR). The inclusion complexes formed by surfactant (S) and β-cyclodextrin (β-CD) can associate with hydrolyzed polyacrylamides (HPAM) in aqueous solution, and subsequently establish the SAP network, which exhibits advanced viscoelasticity at the optimum molar ratio (S:β-CD = 2:1). Furthermore, this system presents enhanced surface activity and superior mechanical and thermal stability, as well as tolerance to elevated brine salinity and hardness due to the network 'interlocking effect'. Sandpack flood tests suggest the excellent mobility control ability of this system during polymer flooding, and also a moderate permeability reduction capacity, which makes it more cost effective in oil fields than the currently used HPAM. Regarding EOR performance, this polymeric system (SAP) produced approximately 19% more incremental oil than the baseline HPAM under the same experimental conditions.
- Subjects
ENHANCED oil recovery; SURFACE active agents; SUGAMMADEX; THERMAL stability; MICELLAR flooding (Petroleum engineering)
- Publication
Advances in Polymer Technology, 2014, Vol 33, Issue 3, pn/a
- ISSN
0730-6679
- Publication type
Article
- DOI
10.1002/adv.21413