Preparation and Performance of a Novel Water‐Soluble Cationic Polymer Containing β‐Cyclodextrin

Abstract

Allyl-b-cyclodextrin is utilized to react with dimethyl diallyl ammonium chloride and acrylamide to synthesize a novel water-soluble cationic polymer by redox free-radical polymerization. The optimum polymerization conditions are determined by the single-variable method, while the structure is characterized by Fourier transform infrared and scanning electron microscopy. In rheological experiments the polymer demonstrates superior properties compared to polyacrylamide. Interfacial tension and adsorption experiments prove the excellent performance of the polymer which can effectively decrease the interfacial tension and reduce the surfactant loss caused by stratum absorption in the process of polymer/surfactant flooding, thus indicating the potential application of the polymer for enhancing oil recovery.

Performance of cationic β‐cyclodextrin as a clay stabilizer for use in enhanced oil recovery

“…It could be seen from Fig. a that strong absorption peaks were observed at 3447, 1655, and 1402 cm −1 , which inferred that the polymer contained AM and AA structures . And the FTIR spectrum shows the characteristic absorption bands of allyl‐β‐cyclodextrin at 932 and 575 cm −1 .…”

Novel Biodegradable Graft-Modified Water-Soluble Copolymer Using Acrylamide and Konjac Glucomannan for Enhanced Oil Recovery

“…Polymerization conditions such as the ratio of AM and AA, content of APEG and KGM, reaction temperature, and pH were explored to get the best reaction conditions (for the details, see the Supporting Information). 44 The optimum synthetic conditions for graftcopolymer are shown in Table 2.…”

Hydrophobically associating acrylamide‐based copolymer for chemically enhanced oil recovery

“…To obtain the optimum polymerization conditions, the effects of the ratio of AM to AA, NAE, emulsifier loading, reaction temperature, pH, and reaction time were investigated by the single‐variable method . First, we kept the loadings of NAE at 0.1 wt %, OP‐10 at 0.03 wt %, and the initiator at 0.05 wt %, and then ensuring the pH, reaction time, and monomer content as fixed values, we changed the temperature of the system to investigate the influence of the reaction temperature on polymerization by observing the apparent viscosity.…”

“…As we know, the reduction of the interfacial tension among oil, water, and rocks should be paid more attention when the polymer flooding strategy is used in an oil reservoir. However, HAWSPs cannot effectively reduce the interfacial tension among oil, water, and rocks . A large number of authors have indicated that a polymer solution adjusting a certain amount of surfactant (polymer–surfactant system) could reduce the interfacial tension significantly .…”