公开(公告)号：US07900720B2

公开(公告)日：2011-03-08

申请号：US11956623

申请日：2007-12-14

申请人： David R. Hall ,  David Lundgreen ,  Paula Turner ,  Daryl Wise ,  Nathan Nelson ,  Andrew Pilgrim ,  Robert Myler

发明人： David R. Hall ,  David Lundgreen ,  Paula Turner ,  Daryl Wise ,  Nathan Nelson ,  Andrew Pilgrim ,  Robert Myler

IPC分类号： E21B7/08 ,  E21B10/36

CPC分类号： E21B17/046 ,  E21B10/62

摘要： In one aspect of the present invention, a section of a drill string has a drill bit with a body intermediate a shank and a working face, the working face having at least one cutting element. A jack element is disposed within the drill bit body and has a distal end substantially protruding from the working face. A drive shaft is in communication with the jack element and a rotary source. The drive shaft has a first portion secured within a bore of a tool string component in the tool string and a second portion secured within a bore of the drill bit. The first and second portions of the drive shaft are connected at a pin and box connection wherein the first and second portions are automatically connected as the tool string component is mechanically coupled to the drill bit.

摘要翻译： 在本发明的一个方面，钻柱的一部分具有钻头，该钻头具有在柄部和工作面之间的中心，所述工作面具有至少一个切割元件。 千斤顶设置在钻头体内并且具有从工作面基本突出的远端。 驱动轴与千斤顶元件和旋转源连通。 驱动轴具有固定在工具串中的工具组件的孔内的第一部分和固定在钻头孔内的第二部分。 驱动轴的第一部分和第二部分以销和盒连接方式连接，其中第一部分和第二部分在机械联接到钻头上时自动连接。

公开(公告)号：US20090152011A1

公开(公告)日：2009-06-18

申请号：US11956623

申请日：2007-12-14

申请人： David R. Hall ,  David Lundgreen ,  Paula Tumer ,  Daryl Wise ,  Nathan Nelson ,  Andrew Pilgrim ,  Robert Myler

发明人： David R. Hall ,  David Lundgreen ,  Paula Tumer ,  Daryl Wise ,  Nathan Nelson ,  Andrew Pilgrim ,  Robert Myler

IPC分类号： E21B7/08 ,  E21B10/36

CPC分类号： E21B17/046 ,  E21B10/62

摘要： In one aspect of the present invention, a section of a drill string has a drill bit with a body intermediate a shank and a working face, the working face having at least one cutting element. A jack element is disposed within the drill bit body and has a distal end substantially protruding from the working face. A drive shaft is in communication with the jack element and a rotary source. The drive shaft has a first portion secured within a bore of a tool string component in the tool string and a second portion secured within a bore of the drill bit. The first and second portions of the drive shaft are connected at a pin and box connection wherein the first and second portions are automatically connected as the tool string component is mechanically coupled to the drill bit.

摘要翻译： 在本发明的一个方面，钻柱的一部分具有钻头，该钻头具有在柄部和工作面之间的中心，所述工作面具有至少一个切割元件。 千斤顶设置在钻头体内并且具有从工作面基本突出的远端。 驱动轴与千斤顶元件和旋转源连通。 驱动轴具有固定在工具串中的工具组件的孔内的第一部分和固定在钻头孔内的第二部分。 驱动轴的第一部分和第二部分以销和盒连接方式连接，其中第一部分和第二部分在机械联接到钻头上时自动连接。