当钻头碰到硬土层钻进速度较慢时,可用压力棒加压使速度加快,假如钻杆歪斜,可用压力杆上的吊钩进行调整。在距打井机5米的四周挖一宽2米,长3米,深1米的泥浆池,供钻井机钻进沙层时混浆使用。螺纹一脱开,使之立刻分离。退杆时留意避免母杆摆动,以免螺纹损坏,同时工作职员要拉紧钢丝绳。供钻井时冲洗土壤用。避免外螺纹与内螺纹之间有相对运动,磨坏螺纹。打井机工作完成后要退杆,退杆时,扳动晋升扳手通过摩擦力使滚筒滚动带动钻杆上升,当母杆丝头露出后。对接钻杆时,柴油机的油门要小,要尽量使钻杆不要左右摆动,以免钻杆螺纹过早损坏。合上转盘下面的活门,挂上倒档,即可退杆。
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