为了解决孔斜问题,我队采用了钻铤加压的方法,经半年多的使用证明,效果很好.试验最初是在507机和508机进行的.打完两个钻孔后,第一次测量钻孔倾角,符合设计要求.将测斜仪校验后测第二次,结果与第一次测的度数一致.此后,用钻铤加压方式共打了10个钻孔.深度都在300米以上,有两个钻孔深度为500米,终孔倾角偏斜不超过1°,只个别钻孔钻到200米后撒掉钻铤开 In order to solve the problem of hole inclination, our team adopted the method of drill collars pressurization, which proved to be very effective after more than six months of use.The experiment was originally conducted on 507 machines and 508 machines.After the two holes were drilled, Measure the angle of the borehole to meet the design requirements. The inclinometer was calibrated for the second time and the result was consistent with the first one. After that, a total of 10 drilled holes were drilled with the drill collar pressure. At more than 300 meters, there are two drilling depth of 500 meters, the inclination of the final hole skew not more than 1 °, drilling only drilled to 200 meters after drilling collar collapsed