油田采油井不可能每口井都派专人看守 ,因此油田每年被盗原油可达数万吨之巨 ,为此设计制作了防盗丝堵 ,经使用 ,效果较好。防盗丝堵如图 4所示 ,堵头母体焊接在管材上 ,堵头由专用扳手总成驱动 ,上紧在堵头母体上。若没有专用扳手总成 ,就无法将堵头从堵头母体内取出 ,使盗油 Oil wells can not be assigned to each well guarded wells, so the oil stolen each year up to tens of thousands of tons of oil giant, designed for this anti-theft wire plug, after use, the effect is better. Anti-theft wire plug shown in Figure 4, plug the parent body welded to the pipe, the plug by a special wrench assembly drive, tighten the plug in the matrix. Without a special wrench assembly, it is impossible to remove the plug from the plug body and to steal the oil