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April 19, 2026Energy & Fuels

Synthesis and Evaluation of Self-Decomposing and Recrosslinking Gel for Controlling CO 2 Gas Channeling and Leakage in Deep Fractures

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Authors

JCJ ChenDZDingxue ZhangTWTianjiang Wu

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Overview

Evaluation reveals a novel gel improves control of CO2 leakage in fractured environments, suggesting new solutions for gas storage.

Key Points

  • The study aims to develop a gel that effectively controls CO2 gas leakage in deep fractures.
  • Synthesis of a composite cross-linking agent using PEGDA and CrAc.
  • Incorporation of butyl acrylate (BA) to create the gel particle.
  • Evaluation of gel properties including decomposing and recrosslinking behavior.
  • Analysis of gel strength and viscosity under various conditions before and after gelation.
  • The synthesized gel exhibits a gel strength rating of H and a viscosity of 486.4 mPa·s at high shear rates.
  • The gel maintains stability for 60 days in a CO2 environment.
  • After gelation, the breakthrough pressure gradient of CO2 increased to 12.2 MPa/m.
  • Oil recovery rate improved by 21.25%.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/69e47321010ef96374d8efbfhttps://doi.org/10.1021/acs.energyfuels.6c00468
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