表面活性剂在非常规油气增产中的应用研究进展

Research progress on application of surfactants in unconventional oil and gas stimulation

在非常规油气资源开发过程中,面临着产量递减快、采出程度低、开发成本高等诸多挑战,表面活性剂具有增黏、增溶、润湿、乳化、起泡、吸附等作用,在实现我国非常规油气资源“提产、提效、降本”开发中具有重要的作用。总结了表面活性剂作为黏弹性表面活性剂增稠剂、转向酸用转向剂、渗吸驱油剂、泡沫排水剂及解水锁剂的应用机理、研究现状及技术需求,并展望了未来表面活性剂在非常规油气增产中的研究重点。

There are so many challenges in the development of unconventional oil and gas resources,such as rapid production-decline,low recovery,and high development costs.With the functions of viscosity increasing,solubilization,madefaction,emulsification,foam and adsorption,surfactants play an important role in“increasing production,improving efficiency and reducing cost”development of unconventional oil and gas resources in China.The application mechanism,research status and technical demand of surfactants using as viscoelastic surfactant thickener,diverting agent for acidizing,imbibition displacing agent,foam drainage agent and water lock releasing agent are summarized,and the future research focus of surfactants in unconventional oil and gas stimulation is prospected.