Journal of Southwest Petroleum University(Science & Technology Edition) ›› 2023, Vol. 45 ›› Issue (1): 71-80.DOI: 10.11885/j.issn.1674-5086.2020.06.10.04

• OIL AND GAS ENGINEERING • Previous Articles     Next Articles

Progress of Researches on Self Repairing Hydrogel and Its Application in Oil and Gas Fields

TU Hongjun1, ZHOU Ming1,2, LI Tongtong1   

  1. 1. School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2020-06-10 Published:2023-02-24

Abstract: In view of the phenomenon that self-healing hydrogels can imitate the damaged parts of plants in nature to repair themselves at the molecular level, the basic principles of design and synthesis of self-healing hydrogels are summarized. Self-healing hydrogels are mainly divided into chemical self-healing hydrogels and physical self-healing hydrogels. In general, chemical self-healing hydrogels can be divided into self-healing hydrogels based on Diels——Alder addition reaction, self-healing hydrogels based on reversible disulfide bond and self-healing hydrogels based on acylhydrazone bond; physical self-healing hydrogels can be divided into self-healing hydrogels based on hydrogen bonding, self-healing hydrogels based on host guest interaction, and self-healing hydrogels based on electrostatic interaction. Self-healing hydrogel not only retains the good water absorption, water retention, biocompatibility and other properties of traditional hydrogel, but also has self-healing properties that can effectively extend the service life of materials and reduce the use cost of materials. On this basis, the potential application value and situation of self-healing hydrogel in oil and gas fields, biomedicine and other fields are analyzed and discussed, and the development trend of self-healing hydrogel in oil and gas fields is prospected.

Key words: self-healing, hydrogels, chemical type, physical type, oil and gas field, application

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