通过对潜孔钻机凿岩过程的力学特征和钻孔偏斜机理的研究 ,提出了控制钻孔偏斜的推进力自动控制方案 ,并进行了试验。实践表明 ,该控制方案性能稳定 ,能够随着钻孔过程中孔内钻杆自重的变化及孔内因素的变化自动改变推进器的推进力 ,使钻头对孔底的轴压力自动变化 ,从而有效地控制钻孔偏斜 Based on the research on the mechanics characteristics and drilling deflection mechanism of the drilling process of the downhole drilling rig, an automatic propulsion control scheme to control the deflection of the borehole is proposed and tested. The practice shows that the control scheme has stable performance and can automatically change the propulsive force of the propeller with the self-weight of the drill pipe in the hole and the change of the hole factor during drilling, so that the axial pressure of the drill bit on the bottom of the drill hole can be automatically changed to be effective Control the borehole deflection