Snubbing unit with double-balance is used in plu gging tubing.It is a mechanical snubbing tool which prevent oil jet during produ ction.It can meet the requirements of nonmud kill job.

• 双平衡不压井器是应用于抽油机作业施工封堵油管通道，防止作业时油流喷射的一种机械不压井工具，与井口自封联合使用可满足抽油机非钻井液压井作业要求。