超分子凝胶形成机理及其在油气钻采工程领域应用现状和前景

Formation mechanism of supramolecular gel and its application status and prospect in the field of oil and gas drilling and production engineering

超分子凝胶是通过非共价键相互作用自组装形成的具有可逆结构与高性能特征的凝胶网络体系。优异的机械性能、环境响应性以及自愈合能力使超分子凝胶在组织工程、生物材料以及工业生产方面起着举足轻重的作用。针对超分子凝胶在国内外的研究现状及应用情况,综述了不同非共价相互作用形成超分子凝胶的机理,并详细阐述了氢键、静电、主-客体以及配位键作用形成超分子凝胶的作用机制和性能特点。结合超分子凝胶的适用性及作用机理,系统介绍了超分子凝胶在钻井堵漏、提高采收率等油气钻采工程领域的应用现状。同时,对不同非共价相互作用形成超分子凝胶的形成机理和应用情况进行了分析总结,明确了目前超分子凝胶存在的关键问题,提出了未来超分子凝胶在油气钻采工程领域的应用前景。

Supramolecular gels are gel networks with reversible structures and high-performance characteristics formed by self-assembly through non-covalent bonding interactions.Boasting of the excellent mechanical properties,environmental responsiveness and self-healing ability,supramolecular gels play an important role in tissue engineering,biomaterials and industrial production.In view of the current research status and applications of supramolecular gels at home and abroad,this paper elaborates the mechanisms and properties of supramolecular gels formed by different non-covalent interactions,and describes the mechanisms and properties of supramolecular gels formed by hydrogen bonding,electrostatic,host-guest and ligand bonding.Further,in combination with the applicability and mechanism of supramolecular gels,the paper systematically introduces the current application status of supramolecular gels in oil and gas drilling and recovery engineering fields,such as drilling and plugging and recovery enhancement.Meanwhile,based on analyzing and summarizing the formation mechanism and application of supramolecular gels formed by different non-covalent interactions,the current key problems of supramolecular gels are clarified,and the prospects for future applications of supramolecular gels in the field of oil and gas drilling engineering are proposed.