A Study on a Novel Hydrophobic Associative Polymer Thickener for High‐Salinity Water in Hydraulic Fracturing DOI
J. Zhou, Shibin Wang, Ruoyu Yang

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(20)

Published: May 1, 2025

Abstract The reuse of flowback fluid is a critical strategy for mitigating environmental pollution and reducing the costs associated with hydraulic fracturing technology in oil fields. However, high‐salinity formations, electrostatic shielding effect caused by significantly reduces thickening efficiency polyacrylamide‐based thickeners, thereby hindering fluid. In this study, we synthesized novel, high‐salinity‐resistant, hydrophobic associative polymer (CHFR) incorporating monomer octadecyl polyoxyethylene methacrylate (N1810) into acrylamide (AM), acrylic acid (AA), 2‐acrylamido‐2‐methylpropanesulfonic (AMPS), methacryloxyethyl trimethylammonium chloride (DMC). FT‐IR 1 H NMR confirmed successful synthesis CHFR. demonstrated viscosity retention 53% 20,000 mg/L NaCl solution 46% CaCl 2 solution, exhibiting salt tolerance concentrations that were 10 30 times higher than those conventional PAM/AMPS. At 100 °C shear rate s −1 , CHFR retained 78% its viscosity. interaction process between can be divided four phases: initial period, rapid decline slow stable period. exhibits excellent resistance, providing new type thickener

Language: Английский

A Study on a Novel Hydrophobic Associative Polymer Thickener for High‐Salinity Water in Hydraulic Fracturing DOI
J. Zhou, Shibin Wang, Ruoyu Yang

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(20)

Published: May 1, 2025

Abstract The reuse of flowback fluid is a critical strategy for mitigating environmental pollution and reducing the costs associated with hydraulic fracturing technology in oil fields. However, high‐salinity formations, electrostatic shielding effect caused by significantly reduces thickening efficiency polyacrylamide‐based thickeners, thereby hindering fluid. In this study, we synthesized novel, high‐salinity‐resistant, hydrophobic associative polymer (CHFR) incorporating monomer octadecyl polyoxyethylene methacrylate (N1810) into acrylamide (AM), acrylic acid (AA), 2‐acrylamido‐2‐methylpropanesulfonic (AMPS), methacryloxyethyl trimethylammonium chloride (DMC). FT‐IR 1 H NMR confirmed successful synthesis CHFR. demonstrated viscosity retention 53% 20,000 mg/L NaCl solution 46% CaCl 2 solution, exhibiting salt tolerance concentrations that were 10 30 times higher than those conventional PAM/AMPS. At 100 °C shear rate s −1 , CHFR retained 78% its viscosity. interaction process between can be divided four phases: initial period, rapid decline slow stable period. exhibits excellent resistance, providing new type thickener

Language: Английский

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