测井技术在套损井修复及报废中的应用

油水井套管损坏不仅会直接影响井的正常生产,还会对邻井造成影响,甚至导致区域性套损,造成极大损失。对油水井套损部位的精准检测是实现高效修井的前提,为满足修井对测井资料的需求,近年来发展形成了系列工程测井技术,为套损井修井前期方案制定、修井中期工具深度校准、修井后效果评价及难于修复井报废提供了有效手段,修井措施的针对性和成功率逐步提高。同时,也分析了现有技术对疑难井检测不适应的原因,提出了服务于修井的工程测井技术发展方向。

Application of Logging Technology in Repairing and Abandoning Damaged Casing Wells

Casing damage not only directly affects normal production of the well itself,but also affects adjacent wells.Regional casing damage may cause a great loss.The accurate detection of damaged location is a precondition to carry out workover.In recent years,a series of engineering logging techniques have been developed for pre-workover plan,calibration of tool depth during workover,post-workover evaluation and well abandoning plan,improving the targets and success of workover measures.Finally,the unsuitability of existing engineering logging techniques are analyzed,and future development is proposed.