凡由井口或从管柱、测井装置上脱落于井内的金属和其他有形物件通称为井下落物。井下落物分为管类落物、杆类落物、绳类落物和小件落物等。井下落物如不及时打捞处理,极会引起油层堵塞,迫使油井侧钻或做报废处理,严重影响油井正常生产。因此,工作实践中不断研究探讨油井打捞作业技术,是保证油田井下打捞作业成功的重要基础和前提。 All metal and other tangible objects that fall into wellbores from wellheads or from string and well logging devices are commonly referred to as well-bore drops. Well-fallen objects into tube-like litter, rod-like litter, rope-like litter and small pieces of falling objects. If the well is not salvaged in time, it will lead to clogging of the reservoir, forcing the well to sidetrack or scrapped, which will seriously affect the normal production of the well. Therefore, continuous research in the practice of oil well drilling operations is an important foundation and prerequisite for ensuring the success of oilfield salvage operations.