论文部分内容阅读
江苏安基山矿区经过普查钻探之后，发现矿体产状变陡（70°～80°），直孔难以控制矿体真厚度和取得理想地质效果。故地质部门要求补打斜孔以搞清矿体产状。三○三机在接受斜孔钻探施工任务后，用金刚石钻进9线62号斜孔时，曾使用钢球式单动双管和双弹子型单动双管。因内管藉助于挂管接头悬挂在外管接头上，犹如钟摆装置。在斜孔中，由于重力作用，
After drilling in the Anji Mountain mining area of Jiangsu Province, it found that the shape of the ore body became steep (70 ° -80 °) and the direct hole was hard to control the true thickness of the ore body and achieved the desired geological result. Therefore, the geological department required to fill the slant hole to clarify the shape of the ore body. Three hundred and three aircraft to accept oblique hole drilling construction tasks, the use of diamond drilling 9 line 62 inclined holes, the ball had used single-action double-pipe and double-ball double action. Because the inner tube by hanging pipe joints hanging in the outer pipe joints, like a pendulum device. In slant holes, due to the effect of gravity,