Synthesis of ultra‐high concentration of salt‐resistant polyacrylamide

Abstract

Glucose, an environmentally friendly and renewable material, is modified differently in various fields. In the petrochemical industry, water-soluble polymer with salt resistance plays an important role in the production in high-salinity reservoirs. In this work, N,N-dimethyl ethanolamine was reacted with glucose to synthesis a polymerizable monomer Gf (N,N-dimethylaminoethylglucoside). Gf was polymerized with acrylamide in aqueous solution to obtain copolymer glucose modified polyacrylamide. The copolymer was characterized by Fourier transform infrared spectroscopy, 1 H-NMRspectroscopy, scanning electron microscopy, and thermogravimetric analysis. The temperature resistance, salt resistance, and shear resistance of the copolymer solution were evaluated. The results shown that the copolymer had excellent saltthickening effect, favorable temperature resistance, and shear resistance. We expect that this work would provide a new method for designing polymers with excellent temperature resistance, salt resistance, and shear resistance.

Influence of Alkyl Chain Length on the Performance of Inverse Emulsion Polyacrylamide Fracturing Fluid Thickeners

“…Consequently, viscosity generation transitions from occurring within individual molecules to taking place between multiple molecules. This shift is responsible for the observed increase in viscosity . Polymers containing hydrophobic monomers exhibit not only hydrogen bonds between molecules but also hydrophobic associations among the hydrophobic monomers.…”

Can Supramolecular Polymers Become Another Material Choice for Polymer Flooding to Enhance Oil Recovery?

“…In addition, the supramolecular system based on hydrogen bonding has also been gradually applied to tertiary oil recovery. Zhao et al [ 149 ] synthesized a polymerizable monomer GF (N-dimethylaminoethyl glucoside) with glucose and then polymerized with acrylamide to obtain an environmentally friendly oil displacement polymer ( Figure 9 C). Under the harsh environment of 200 g/L mineralization, the system can still maintain high viscosity.…”

“…( B ) The supramolecular polymer based on host–guest interaction has the phenomenon of salt thickening [ 35 , 37 , 95 ]. ( C ) Due to the coordination between hydrogen bond and metal, HPAM with a glucoside unit showed super high salt tolerance [ 149 ]. ( D ) Introducing bases into the side chain of HPAM [ 150 ].…”

Synthesis and characterization of a novel active polymer for enhanced oil recovery

“…They found that UHMW HPAMs can acquire stronger flow resistance in porous medium than HAPM, and the ability of alkaline–surfactant–polymer (ASP) flooding based on UHMW‐HPAM to increase oil recovery is far better than that of an ASP system based on ordinary HPAM. (2) Temperature and salt tolerant groups are introduced into the polymer molecular chain 31,32 . Zhao 33 synthesized a temperature‐resistant functional monomer (TEPA) and a hydrophobically associating salt‐resistant monomer (APC).…”

“…(2) Temperature and salt tolerant groups are introduced into the polymer molecular chain. 31,32 Zhao 33 synthesized a temperature-resistant functional monomer (TEPA) and a hydrophobically associating salt-resistant monomer (APC). These functional monomers are polymerized with acrylamide (AM) and acrylic acid (AA) to prepare a temperature-resistant and salt-resistant poly(AM) oil-displacement agent (AATA) with siloxane groups.…”