渤南区域注水井环空带压原因浅析及应对措施

摘要

The annular pressure of water injection well is one of the problems faced in oilfield development. The main reasons are summed up as four kinds of pipe string movement by the statistical analysis on the pressured injection wells in the annulus zone of the Boan area,which include the wear of the seal cylinder,the movement,corrosion and the unreasonable structure of the pipe column,and the solutions are offered as well.%注水井环空带压是油田开发过程中面临的问题之一,通过对渤南区块环空带压注水井的统计分析,针对不同井况,将主要原因归纳为管柱窜动、密封筒磨损、管柱腐蚀和管柱结构不合理,并探讨了每类问题的解决对策.