A novel water-soluble hydrophobically associating polyacrylamide based on oleic imidazoline and sulfonate for enhanced oil recovery

We report here a novel imidazoline functionalized hydrophobically associating copolymer that exhibits excellent rheological properties and outstanding potential for enhanced oil recovery.

Download Full-text

Rheological Properties and Salt Resistance of a Hydrophobically Associating Polyacrylamide

Australian Journal of Chemistry ◽

10.1071/ch14204 ◽

2014 ◽

Vol 67 (10) ◽

pp. 1396 ◽

Cited By ~ 17

Author(s):

Quanhua Deng ◽

Haiping Li ◽

Ying Li ◽

Xulong Cao ◽

Yong Yang ◽

...

Keyword(s):

Rheological Properties ◽

Oil Recovery ◽

Resistance Mechanism ◽

Salt Resistance ◽

Water Soluble ◽

Design And Synthesis ◽

Tertiary Oil Recovery ◽

Hydrophobically Associating ◽

Hydrolyzed Polyacrylamide ◽

Relationship Of

The rheological properties of electrolyte solution of a hydrophobically associating acrylamide-based copolymer (HA-PAM) containing hydrophobically modified monomer and sodium 2-acrylamido-2-methylpropanesulfonic sulfonate were investigated in this paper. The study mainly focussed on effects of electrolyte concentration, temperature, and shear rate on the solution rheological properties. HA-PAM exhibited much stronger salt tolerance and shearing resistance than the commonly used partially hydrolyzed polyacrylamide, and has great potential for application in tertiary oil recovery of oilfields with high salinity. The salt resistance mechanism of HA-PAM in solution was investigated by combining molecular simulation and experimental methods. The structure–performance relationship of the salt-resisting polymer may provide useful guidance for design and synthesis of novel water-soluble polymers with high salt resistance.

Download Full-text

Solution Property Investigation of Combination Flooding Systems Consisting of Gemini–Non-ionic Mixed Surfactant and Hydrophobically Associating Polyacrylamide for Enhanced Oil Recovery

Energy & Fuels ◽

10.1021/ef202005p ◽

2012 ◽

Vol 26 (4) ◽

pp. 2116-2123 ◽

Cited By ~ 72

Author(s):

Yong-jun Guo ◽

Jian-xin Liu ◽

Xin-ming Zhang ◽

Ru-sen Feng ◽

Hua-bin Li ◽

...

Keyword(s):

Enhanced Oil Recovery ◽

Oil Recovery ◽

Mixed Surfactant ◽

Solution Property ◽

Hydrophobically Associating Polyacrylamide ◽

Hydrophobically Associating

Download Full-text

Role of chemical additives and their rheological properties in enhanced oil recovery

Reviews in Chemical Engineering ◽

10.1515/revce-2018-0033 ◽

2020 ◽

Vol 36 (7) ◽

pp. 789-830 ◽

Cited By ~ 1

Author(s):

Jinesh Machale ◽

Subrata Kumar Majumder ◽

Pallab Ghosh ◽

Tushar Kanti Sen

Keyword(s):

Rheological Properties ◽

Enhanced Oil Recovery ◽

Oil Recovery ◽

Oil Field ◽

Water Soluble ◽

Attractive Alternative ◽

Chemical Additives ◽

Sweep Efficiency ◽

Chemical Eor ◽

Natural Surfactants

AbstractA significant amount of oil (i.e. 60–70%) remains trapped in reservoirs after the conventional primary and secondary methods of oil recovery. Enhanced oil recovery (EOR) methods are therefore necessary to recover the major fraction of unrecovered trapped oil from reservoirs to meet the present-day energy demands. The chemical EOR method is one of the promising methods where various chemical additives, such as alkalis, surfactants, polymer, and the combination of all alkali–surfactant–polymer (ASP) or surfactant–polymer (SP) solutions, are injected into the reservoir to improve the displacement and sweep efficiency. Every oil field has different conditions, which imposes new challenges toward alternative but more effective EOR techniques. Among such attractive alternative additives are polymeric surfactants, natural surfactants, nanoparticles, and self-assembled polymer systems for EOR. In this paper, water-soluble chemical additives such as alkalis, surfactants, polymer, and ASP or SP solution for chemical EOR are highlighted. This review also discusses the concepts and techniques related to the chemical methods of EOR, and highlights the rheological properties of the chemicals involved in the efficiency of EOR methods.

Download Full-text