公开(公告)号：US20140151131A1

公开(公告)日：2014-06-05

申请号：US13905396

申请日：2013-05-30

申请人： Baker Hughes Incorporated

发明人： Anton F. Zahradnik ,  Ron D. McCormick ,  Rudolf C. Pessier ,  Jack T. Oldham ,  Michael S. Damschen ,  Don Q. Nguyen ,  Matt Meiners ,  Karlos B. Cepeda ,  Mark P. Blackman

IPC分类号： E21B10/14

CPC分类号： E21B10/14 ,  E21B10/00

摘要： A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.

摘要翻译： 一个位体在其上部配置用于连接到一个钻柱。 至少一个固定刀片从钻头体向下延伸，并具有径向最外面的表面。 多个固定切割元件固定在固定刀片上，优选地在其旋转前缘处成行。 至少一个位腿被固定到钻头体上，并且滚动切割器被安装成用于在钻头腿上旋转。 至少一个稳定器垫设置在钻头腿和固定刀片之间，稳定器垫径向向外延伸到基本上为表面。 每个叶片的径向最外面的表面可以平行于钻头轴线轴向向下延伸，或相对于钻头轴线螺旋状或螺旋状地成角度（非平行）延伸。

公开(公告)号：US09670736B2

公开(公告)日：2017-06-06

申请号：US13905396

申请日：2013-05-30

申请人： Baker Hughes Incorporated

发明人： Anton F. Zahradnik ,  Ron D. McCormick ,  Rudolf C. Pessier ,  Jack T. Oldham ,  Michael S. Damschen ,  Don Q. Nguyen ,  Matt Meiners ,  Karlos B. Cepeda ,  Mark P. Blackman

IPC分类号： E21B10/14 ,  E21B10/00

CPC分类号： E21B10/14 ,  E21B10/00

摘要： A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.