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Gels
Special Issues
Polymer Gels for Oil Recovery and Industry Applications
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Polymer Gels for Oil Recovery and Industry Applications

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Applications".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 731

Special Issue Editors

Dr. Yinbo He

E-Mail Website
Guest Editor
National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Interests: oil recovery; gelling agent; oil-based drilling fluid
Dr. Zheyu Liu

E-Mail Website
Guest Editor
State Key Laboratory of Oil and Gas Resources and Exploration and College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Interests: chemical flooding enhanced oil recovery; emulsification behavior characterization and control; multiphase fluid microscale flow
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yiqiang Li

E-Mail Website
Guest Editor
State Key Laboratory of Oil and Gas Resources and Exploration and College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
Interests: enhanced oil recovery; microemulsions; oil and gas fields
Special Issues, Collections and Topics in MDPI journals
Dr. Jingyang Pu

E-Mail Website
Guest Editor
College of Carbon Neutral Energy, China University of Petroleum (Beijing), Beijing 102249, China
Interests: polymers; particle gels; chemical EOR methods; water management in the oilfield
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymer flooding is a crucial method used to enhance oil recovery, effectively controlling water and increasing oil production through profile modification in injection wells or water blocking in production wells. This technique has been successfully applied in numerous oilfields worldwide, demonstrating significant advantages, particularly in increasing recovery rates in mature oilfields and developing complex reservoirs. However, under challenging conditions such as high temperatures, high salinity, and alkaline environments, conventional polymer flooding systems exhibit low efficiency and fail to meet the actual needs of oilfield development.

We are pleased to invite you to conduct focused research on "Polymer Gels for Oil Recovery and Industry Applications" to address technical challenges such as the insufficient thermal resistance of polymer gels under complex geological conditions and the significant decrease in viscosity and shear strength in high-salinity environments.

This Special Issue aims to advance the application of polymer gels in petroleum engineering, providing robust technical support for enhancing oil recovery rates and extending the lifespan of oilfields.

In this Special Issue, original research articles and reviews are welcome to be submitted. Research areas may include, but are not limited to, the following:

  1. The development of novel polymer gel materials is urgently needed to enhance their performance under harsh conditions such as high temperatures and high salinity.
  2. An in-depth investigation into the micro-mechanisms of polymer gels within oil reservoirs is required to elucidate their diffusion and water-blocking mechanisms in porous media.
  3. The integration of smart materials and nanotechnology is essential to create adaptive smart polymer gels, thereby increasing their potential applications in oilfield development.

We look forward to receiving your contributions.

Dr. Yinbo He
Dr. Zheyu Liu
Prof. Dr. Yiqiang Li
Dr. Jingyang Pu
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. Gels is an international peer-reviewed open access monthly 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 2100 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

  • polymer gel
  • polymer flooding
  • enhanced oil recovery
  • intelligent gel
  • temperature resistance
  • salt resistance
  • flow behavior

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Published Papers (1 paper)

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Research

24 pages, 6238 KiB  
Article
Temperature-Responsive Micro-Cross-Linking: A Novel Solution for Enhancing High-Temperature Viscosity and Settlement Stability of High-Density Cement Slurry
by Lifang Song, Chengwen Wang, Jingping Liu and Dingye Li
Gels 2025, 11(2), 138; https://doi.org/10.3390/gels11020138 - 15 Feb 2025
Viewed by 470
Abstract
In order to solve the problem of solid-phase particle settlement of high-density cement paste used in deep/ultra-deep wells, a temperature-responsive micro-cross-linking method was innovatively adopted to increase the viscosity and settlement stability of high-density cement paste at high temperatures. Through the self-developed suspension [...] Read more.
In order to solve the problem of solid-phase particle settlement of high-density cement paste used in deep/ultra-deep wells, a temperature-responsive micro-cross-linking method was innovatively adopted to increase the viscosity and settlement stability of high-density cement paste at high temperatures. Through the self-developed suspension stabilizer and cross-linking agent to form micro-cross-linking gel at high temperature, the increase in high-temperature viscosity of cement paste was successfully realized without increasing the low-temperature viscosity of cement paste. Moreover, this micro-cross-linking reaction, together with the hydrophobic binding effect of the suspension stabilizer, strengthened the filamentary linkage network structure in the polymer solution with the formation of a lamellar linkage network structure. This effectively compensated for the decrease in viscosity of the polymer solution with increasing temperature. The results show that the micro-cross-linked system can be successfully cross-linked at elevated temperatures of 120–220 °C in pH 8–13 and salt content of 0–10%. The viscosity of the micro-cross-linked system was 144.5 mPa·s after 20 min at 220 °C with a shear rate of 170 s−1, which was 91% higher than the viscosity of the un-cross-linked system. After curing at 220 °C, the density difference between the top and bottom of the high-density cement was 0.025 g/cm3, which was 84% lower than the un-cross-linked system. This helped the high-density cement slurry to maintain the homogeneity of the components at high temperatures and ensured the high-temperature consistency and suspension stability of the slurry. This study helps to improve the cementing effect of deep/ultra-deep wells and provides a new method to solve the problems of cement slurry settlement and destabilization under high-temperature and high-pressure well conditions. Full article
(This article belongs to the Special Issue Polymer Gels for Oil Recovery and Industry Applications)
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