公开(公告)号：US4641716A

公开(公告)日：1987-02-10

申请号：US627464

申请日：1984-07-03

申请人： Bo A. Sjalander

发明人： Bo A. Sjalander

IPC分类号： E21B7/02 ,  E21B15/04 ,  E21C11/00 ,  E21D10/00

CPC分类号： E21B7/028 ,  E21B15/04

摘要： A drilling equipment and a method is intended for horizontally boring rocks with a low bench height. The drilling equipment can be used as an accessory to an ordinary dredger or the like. The whole drilling equipment is arranged to turn in a plane parallel to the plane of the brackets of the dredger's boom, and the drilling machine itself together with its drill-propulsion unit is arranged to turn in a plane perpendicular to said brackets' plane. These turnings are preferentially effected by hydraulic power from the dredger.

摘要翻译： 一种钻井设备和一种方法是用于水平钻孔，具有较低的台架高度。 钻井设备可以用作普通挖泥船等的附件。 整个钻井设备被设置成平行于挖泥船吊架平面的平面转动，并且钻机本身与其推进单元一起设置成在与所述托架平面垂直的平面中转动。 这些转弯优先受来自挖泥船的液压动力的影响。