JOURNAL ARTICLE

Performance and displacement efficiency of the surfactant synergistic enhanced inclusion system for high-temperature and high-salinity reservoirs.

  • Published In: Physics of Fluids, 2025, v. 37, n. 3. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Zhou, Bobo; Kang, Wanli; Zhang, Hongwen; Li, Xinxin; Yang, Hongbin; Jiang, Haizhuang; Sarsenbekuly, Bauyrzhan; Li, Zhe; Zhang, Xing; Zhang, Xiangfeng; Cao, Xiaopeng; Xu, Yonghui 3 of 3

Abstract

This article focuses on the development and evaluation of a salt-tolerant amphiphilic polymer-based supramolecular inclusion system enhanced with a surfactant, erucamide propyl betaine (EDAB), designed to improve oil recovery in high-temperature and high-salinity reservoirs. The system, combining β-cyclodextrin and adamantane polymers (ABMN) with EDAB, demonstrates excellent viscosity enhancement and ultra-low oil–water interfacial tension (IFT) under harsh conditions (85 °C, salinity up to 20 × 10^4 mg·L^−1), with performance influenced by temperature, salt concentration, and pH. Emulsification tests show improved emulsion stability due to synergistic host–guest interactions and surfactant effects, while core flooding experiments reveal an ultimate oil recovery of 60.13% and an enhanced oil recovery (EOR) of 24.75%. These results suggest the ABMN/EDAB system is a promising chemical flooding agent for enhanced oil recovery (EOR) in challenging reservoir environments.

Additional Information

  • Source:Physics of Fluids. 2025/03, Vol. 37, Issue 3, p1
  • Document Type:Article
  • Subject Area:Chemistry
  • Publication Date:2025
  • ISSN:1070-6631
  • DOI:10.1063/5.0257638
  • Accession Number:184176206
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