随着当前阶段我国油田工程注水开发时间的增加,为了能够更好的实现对低产储层的开发与利用,必须要对油井进行大修。但是现阶段在油田井下作业大修的过程中成本较高、开发的周期较长,要想保证大修对于油田具有重要的意义与作用,需要结合油田井下作业的实际情况,通过对油田井下作业的实质性勘察与分析来提升大修的效果,实现油田事业的可持续发展。本文笔者基于此主要来分析探究油田井下作业大修施工技术的相关问题。 With the increase of waterflooding time of oilfield engineering in our country at present, in order to realize the development and utilization of low-yield reservoirs better, it is necessary to overhaul oil wells. However, at this stage, the cost is high during the downhole operation overhaul and the development period is relatively long. To ensure that overhauls are of great significance and effect to the oilfield, it is necessary to combine the actual operation of the downhole operation in the oilfield, Sex survey and analysis to enhance the effect of overhaul, to achieve sustainable development of oilfield. In this paper, the author mainly based on this analysis to explore the underground oil field overhaul construction technology related issues.