Preparation and performance evaluation of a branched functional polymer for heavy oil recovery

Lei, Tianmeng; Wang, Yefei; Zhang, Heng; Cao, Jie; Xiao, Chunxia; Ding, Mingchen; Chen, Wu‐Hua; Chen, Mifa; Zhang, Zhenyu

doi:10.1016/j.molliq.2022.119808

Cited by 8 publications

(1 citation statement)

References 39 publications

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“…Second, the synergistic effect of BPSMs was significantly weakened by chromatographic separation (i.e., the differential transport speed of BPSMs flowing in the boreholes after injection into the stratum). Therefore, it is necessary to improve the poor shear resistance and avoid the chromatographic separation of BPSMs to further advance their oil-displacing performance [22,23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Properties of a Novel Hyperbranched Polymers with Polyacrylamide Side Chains

Qin,

Wang,

Tang

et al. 2024

Materials

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A novel hyperbranched polymer with polyacrylamide side chains (HAPAM) was synthesized by aqueous solution polymerization using acrylic acid, acrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid, hydrophobic monomer of dimethyl octadecyl ammonium chloride, and the homemade skeleton monomer of modified-M2.0 as raw materials and (NH4)2S2O8-NaHSO3 as initiator. The molecular structure, functional groups, and surface morphology of HAPAM were characterized by Fourier transform infrared spectroscopy, nuclear magnetic resonance hydrogen spectroscopy, and scanning electron microscopy. It was found that the performance of HAPAM solution was higher than that of ordinary polyacrylamide solution in terms of thickening ability, shearing resistance, thermal endurance, salt-resistance, resistance-coefficient and residual-resistance-coefficient, ability to reduce interfacial tension between polymer solution and crude oil, and oil-displacement-efficiency. In particular, the enhanced oil recovery of the HAPAM solution was 13.03%, and the improvement of shearing resistance and immunity to chromatographic separation were simultaneously achieved by the HAPAM solution. These results indicate that the successful synthesis of the novel HAPAM opens a promising strategy for developing new high-performance oil-displacing polymers.

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Section: Introductionmentioning

confidence: 99%