β-Cyclodextrin and Methacrylic Acid Octyl Phenols Poly(ethylene oxide) Ester Modified Acrylamide Polymer for Enhancing Oil Recovery

Chemical enhanced oil recovery and the role of chemical product design

“…The latter depends, among others, on the polymer concentration and molecular weight, temperature, water salinity, total dissolved solids (TDS) and the concentration of divalent ions. Furthermore, due to several developments reported by Wever [71][72][73][74][75], Lai [76,77], Kuang [78,79], Zou [80,81] and different authors [38,[82][83][84][85][86][87][88], the polymer architecture is also an important factor to be taken into account. One example of this is the development of branched polymers (e.g., star and comb) which resulted in enhanced viscosifying properties with respect to traditional linear polymers.…”

Behavior study of a thermo‐responsive hydrophobically associative water‐soluble terpolymer in laboratory test with heavy crude oil

“…22 Generally, these experimental attempts were performed in sandstone reservoirs under low brine concentration and regular temperature below 100 C. Several investigations were developed by different authors and reported the impact of the polymer architecture, molar composition, salt concentration, and temperature on the ability of these prepared materials to be used as rheological modifiers in the EOR process. [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] In this work, an associative water-soluble terpolymer was synthesized, characterized, and evaluated at laboratory level in order to determine its performance to act as a thickening agent, that is, a potential candidate to improve the oil recovery process. Experiments were performed in the presence of heavy crude oil sample from a carbonated reservoir located in southern México.…”

“…Generally, these experimental attempts were performed in sandstone reservoirs under low brine concentration and regular temperature below 100°C. Several investigations were developed by different authors and reported the impact of the polymer architecture, molar composition, salt concentration, and temperature on the ability of these prepared materials to be used as rheological modifiers in the EOR process 23–41 …”

Synthesis and characterization of a novel β-cyclodextrin modified cationic polyacrylamide and its application for enhancing oil recovery

“…However, to the best of our knowledge, there are few studies about the use of β‐CD to enhance capability of PAM . Zou et al introduced A‐β‐CD and methacrylic acid octyl phenols poly(ethylene oxide) ester into PAM and the product exhibited high temperature tolerance . Zhao et al synthesized two β‐CD modified PAM with acrylic acid and dimethyl diallyl ammonium chloride, respectively.…”