通过调研了新疆油田套漏井的基本情况,开发了针对套损部位在自由井段的井研发出新型的变密度封窜堵漏剂,解决常规堵剂驻留性差、易漏失、胶结性差的问题,通过现场应用,取得了较好的效果,为套漏井修复提供一种新的技术支持,具有较广泛的应用前景。 Based on the investigation of the basic situation of casing leakage in Xinjiang Oilfield, a new type of variable density sealing and sealing agent has been developed for wells with casing damage in the free section to solve the problems of poor retention, easy leakage and poor cementing of conventional blocking agent Problem, through the field application, and achieved good results, to provide a new set of technical support for trap repair, has a broader application prospects.