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激励被卡钻具的弹性振动是处理卡钻事故的有效方法之一。但是现有的振荡器须与钻柱组合,为此花费的时间将使井况更加复杂.其他如常用的井口振荡器,则因振荡能量被上部钻柱吸收而不能收到解卡效果。
One of the effective methods to deal with the stuck pipe accident is to stimulate the elastic vibration of the stuck drill tool. However, the existing oscillator must be combined with the drill string, and the time it takes will complicate the well.Other commonly used wellhead oscillators are not able to receive the jamming effect because the oscillating energy is absorbed by the upper drill string.