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Advanced Polymer-Surfactant Systems for Petroleum Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 417

Special Issue Editors

Petroleum Engineering School, Southwest Petroleum University, Chengdu, China
Interests: polymer; hydrogel; surfactant; fracturing fluids

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Guest Editor
School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
Interests: surfactant; foaming agent; foaming stability; chemical flooding; EOR
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Special Issue Information

Dear Colleagues,

With the development of the oil and gas industry, unconventional reservoirs with low porosity and low permeability are responsible for an increasing proportion of the total oil and gas resources. To develop unconventional reservoirs, the design and synthesis of high-performance polymer-based surfactants exhibiting both polymer and surfactant properties is urgent. These can be applied in oilfields, including fracking, acidizing, enhancing oil recovery, etc. Notwithstanding the enormous efforts of academic researchers and industry, a functional polymer-based surfactant solution with high performance and low cost remains to be found.

This Special Issue focuses on the recent advances, challenges, and fundamental aspects of the synthesis, characterization, properties, and application of polymer-based surfactants as a functional material used in oilfields. We aim to bring together researchers in the aforementioned fields to highlight the current development of new techniques, exchange the latest understanding of novel functional polymeric or surfactant active materials, present advanced concepts for design and preparation, and facilitate collaboration between researchers in different fields. We welcome the submission of both original research and review articles.

Dr. Yang Zhang
Dr. Hailong Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • surfactant
  • polymer
  • functional materials
  • surface treatment
  • hydrogel
  • foaming stability

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Published Papers (1 paper)

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Research

11 pages, 861 KiB  
Article
Synergistic Optimization of Polymer–Surfactant Binary Flooding for EOR: Core-Scale Experimental Analysis of Formulation, Slug Design, and Salinity Effect
by Wenjie Tang, Patiguli Maimaiti, Hongzhi Shao, Tingli Que, Jiahui Liu and Shixun Bai
Polymers 2025, 17(16), 2166; https://doi.org/10.3390/polym17162166 - 8 Aug 2025
Viewed by 293
Abstract
As conventional waterflooding enters mid-to-late stages, chemical enhanced oil recovery (EOR) technologies such as polymer–surfactant binary flooding have emerged to address declining recovery rates. This study systematically investigates the synergistic effects of polymer–surfactant binary formulations through core-flooding experiments under varying concentrations, injection volumes, [...] Read more.
As conventional waterflooding enters mid-to-late stages, chemical enhanced oil recovery (EOR) technologies such as polymer–surfactant binary flooding have emerged to address declining recovery rates. This study systematically investigates the synergistic effects of polymer–surfactant binary formulations through core-flooding experiments under varying concentrations, injection volumes, and salinity conditions. The optimal formulation, identified as 0.5% surfactant and 0.15% polymer, achieves a maximum incremental oil recovery of 42.19% with an interfacial tension (IFT) reduction to 0.007 mN/m. A 0.5 pore volume (PV) injection volume balances sweep efficiency and economic viability, while sequential slug design with surfactant concentration gradients demonstrates superior displacement efficacy compared with fixed-concentration injection. Salinity sensitivity analysis reveals that high total dissolved solids (TDS) significantly degrade viscosity, whereas low TDS leads to higher viscosity but only marginally enhances the recovery. These findings provide experimental evidence for optimizing polymer–surfactant flooding strategies in field applications, offering insights into balancing viscosity control, interfacial tension reduction, and operational feasibility. Full article
(This article belongs to the Special Issue Advanced Polymer-Surfactant Systems for Petroleum Applications)
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