摘要
为解决以往使用偏心井口直接转动油管时 ,上部与下部油管不同步和转动角度不易控制等问题 ,介绍了一种通过蜗杆蜗轮机构转动油管的CYC— 10 0I型转动井口。为防止反转导致油管脱扣 ,这种井口还设有棘轮机构 ,使油管只能按上扣方向转动。中原油田采油三厂 9口油管偏磨井一年来的使用情况表明 ,使用CYC— 10 0I型转动井口 ,不但油管转动灵活自如 ,而且易于确定转动角度 ,轴承、蜗杆和蜗轮等重要零件也完好无损。由于油管磨损均匀 ,不曾发生因油管偏磨穿孔而须检泵 ,平均检泵周期由原先的 12 6天延长至 2 56天 ,减少作业 19井次。
When the eccentric wellhead is used, the tubings in an oil well will be rotated asguchronously and the rotating angle is hard to control. A new wellhead with tubing-rotating mechanism is developed. The new wellhead uses worm and wormwheel mechanism to rotate tubing, and adopts a ratchet wheel to prevent reverse of the tubing. By using the new wellhead, the eccentric wear of tubing is controlled effectively, and the period of pump overhaul is extended distinctly.
出处
《石油机械》
北大核心
2001年第1期30-31,0,共2页
China Petroleum Machinery
