公开(公告)号：EP2812523A4

公开(公告)日：2015-11-25

申请号：EP13746230

申请日：2013-02-08

申请人： BAKER HUGHES INC

发明人： BILEN JUAN MIGUEL ,  SCOTT DANNY E ,  PATEL SURECH G ,  MATTHEWS OLIVER ,  NELMS DEREK L ,  LYONS NICHOLAS J

IPC分类号： E21B10/56

CPC分类号： E21B10/5673 ,  E21B10/00 ,  E21B10/08 ,  E21B10/42 ,  E21B10/43 ,  E21B10/46 ,  E21B10/54 ,  E21B10/55 ,  E21B10/58 ,  E21B2010/562

摘要： Cutting elements for an earth-boring tool include a substrate base and a cutting tip. The cutting tip may include a first generally conical surface, a second, opposite generally conical surface, a first flank surface extending between the first and second generally conical surfaces, and a second, opposite flank surface. The cutting tip may include a central axis that is not co-linear with a longitudinal axis of the substrate base. The cutting tip may include a surface defining a longitudinal end thereof that is relatively more narrow in a central region thereof than in a radially outer region thereof. Earth-boring tools include a body and a plurality of such cutting elements attached thereto, at least one cutting element oriented to initially engage a formation with the first or second generally conical surface thereof. Methods of drilling a formation use such cutting elements and earth-boring tools.

公开(公告)号：EP2567056A4

公开(公告)日：2016-09-28

申请号：EP11778059

申请日：2011-04-29

申请人： BAKER HUGHES INC

发明人： SCOTT DANNY E ,  LYONS NICHOLAS J ,  BILEN JUAN MIGUEL ,  MATTHEWS OLIVER ,  PESSIER RUDOLF CARL

IPC分类号： E21B10/52 ,  E21B10/16

CPC分类号： E21B10/55 ,  E21B10/42 ,  E21B10/46 ,  E21B10/5673

摘要： Cutting elements include a volume of superabrasive material. The volume of superabrasive material comprises a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. An earth-boring tool may comprise a bit body and at least one cutting element attached to the bit body. Methods of forming cutting elements comprise forming a volume of superabrasive material comprising forming a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. Methods of forming earth-boring tools comprise forming a cutting element and attaching the cutting element to an earth-boring tool.

摘要翻译： 切割元件包括超级磨料材料的体积。 超级磨料材料的体积包括前切割表面，在最终切割表面，一个切削刃，以及横向侧表面之间延伸并相交的每个前切割表面和所述端切割表面的。 钻地工具可包括钻头体和附接到钻头主体上的至少一个切割元件。 形成切割元件的方法包括形成超级磨料材料包括形成前切割表面的体积，在端部切割面，切割边缘，并且横向侧表面之间延伸并相交所述前切割面和所述端部切割 表面。 形成钻地工具的方法包括形成切割元件和钻地工具的切割元件附接至。

公开(公告)号：EP2313595A4

公开(公告)日：2013-07-17

申请号：EP09759316

申请日：2009-06-03

申请人： BAKER HUGHES INC

发明人： SMITH REDD H ,  STEVENS JOHN H ,  DUGGAN JAMES ,  LYONS NICHOLAS J ,  EASON JIMMY W ,  MATTHEWS OLIVER ,  CURRY DAVID A

IPC分类号： E21B10/00

CPC分类号： E21B10/00