在钻井过程中,水龙头冲管总成的动密封总是先于静密封而失效。当动密封损坏时,必须停止钻进,中止泥浆循环,取出及更换冲管总成。虽然,大多数厂家生产的水龙头,在设计时已考虑到允许迅速地更换冲管总成,但是在某些钻井条件下,即使在极短的时间内中止泥浆循环或停止活动钻具,都会有发生卡钻的危险。对于这种情况,当冲管总成的动密封损 During the drilling process, the dynamic seal of the faucet flush pipe assembly always fails the static seal before it fails. When the moving seal is damaged, you must stop drilling, stop the mud circulation, remove and replace the flush assembly. Although most manufacturers of faucets have been designed to allow for rapid replacement of the flush assembly, under certain drilling conditions, even in a very short period of time to stop the mud circulation or stop the movable drill, there will be Dangerous card stuck. In this case, when the Chong pipe assembly of the dynamic seal damage