Recent Advances in Polymeric Gel for Geo-Energy Recovery

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

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1877

Special Issue Editor

College of Petroleum, China University of Petroleum-Beijing, Beijing 102249, China
Interests: oilfield chemistry; plugging theory and technology; low energy processes for oil and gas recovery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymeric gels are widely used in the field of geo-energy development, for example, in the process of plugging while drilling in complex oil and gas reservoirs, and the exploitation of conventional oil and gas reservoirs such as profile control and water blocking in old oil fields with excessive water production. Other examples are the in-depth conformance control and flooding of low-permeability oil reservoirs, the diversion and acidification of tight oil reservoirs and re-fracturing, the high-efficiency water circulation of geothermal resources, and leakage remediation in the CCUS process. Polymer gels generally include in situ cross-linked polymer gels, in situ free radical polymerization gels, particle gels, foam gels, temperature-responsive, or pH-responsive gels. The properties of different polymer gels are not the same, resulting in different evaluation methods, action mechanisms, and application scopes. In addition, with the rapid development of big data and artificial intelligence technology, polymer gel screening, indoor evaluation, and mine application are becoming more and more intelligent.

We are looking forward to the submission of new studies on the “Recent Advances in Polymeric Gel for Geo-Energy Recovery”.

Dr. Daoyi Zhu
Guest Editor

Manuscript Submission Information

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Keywords

  • polymer gel
  • environmentally friendly gel
  • in situ cross-linked polymer gel
  • pre-formed particle gel
  • foamed gel
  • gelled foam
  • nanogel particles
  • microgel particles
  • numerical simulation
  • big data analysis
  • shale oil
  • tight oil
  • CCUS
  • low-permeability reservoir

Published Papers (1 paper)

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Research

18 pages, 4815 KiB  
Article
Preparation and Performance Evaluation of a Self-Crosslinking Emulsion-Type Fracturing Fluid for Quasi-Dry CO2 Fracturing
by Jiani Hu, Meilong Fu, Minxuan Li, Yan Zheng, Guojun Li and Baofeng Hou
Gels 2023, 9(2), 156; https://doi.org/10.3390/gels9020156 - 15 Feb 2023
Cited by 2 | Viewed by 1489
Abstract
Quasi-dry CO2 fracturing technology is a new CO2 fracturing technology that combines liquid CO2 fracturing (dry CO2 fracturing) and water-based fracturing. It uses a liquid CO2 system containing a small amount of water-based fracturing fluid to carry sand, [...] Read more.
Quasi-dry CO2 fracturing technology is a new CO2 fracturing technology that combines liquid CO2 fracturing (dry CO2 fracturing) and water-based fracturing. It uses a liquid CO2 system containing a small amount of water-based fracturing fluid to carry sand, and it is characterized by sand blending at normal pressure, convenient preparation, the integrated application of resistance reduction and sand carrying, and no dedicated closed sand blender requirement. We developed a self-crosslinking emulsion-type water-based fracturing fluid (ZJL-1), which contained ionic bonds, hydrogen bonds, van der Waals forces, and hydrophobic associations, for quasi-dry CO2 fracturing, and the comprehensive properties of the ZJL-1 fracturing fluid were evaluated. The results showed that the ZJL-1 fracturing fluid had obvious viscoelastic characteristics, a heat loss rate of less than 10% at 200 °C, a good thermal stability, sufficient rheology under high temperature and high shear conditions, and a good thermal stability. The resistance reduction rate reached 70%, which demonstrates a good resistance reduction performance. Compared with conventional guar fracturing fluid, ZJL-1 can carry more sand and has a lower core damage rate. The on-site use of quasi-dry fracturing showed that optimizing the mixing ratio of liquid CO2 fracturing fluid and ZJL-1 fracturing fluid effectively enhanced oil and gas recovery. This can be used to optimize quasi-dry fracturing and can be used as a reference. Full article
(This article belongs to the Special Issue Recent Advances in Polymeric Gel for Geo-Energy Recovery)
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