公开(公告)号：EP2622167A2

公开(公告)日：2013-08-07

申请号：EP11829990.8

申请日：2011-09-30

申请人： Baker Hughes Incorporated ,  Element Six Limited

发明人： FLORES, Alejandro ,  DICK, Aaron, J. ,  LIN, Chih ,  BRADFORD, John, F. ,  VAN STADEN, Louise, F. ,  SWANEPOEL, Gregory, B. ,  VAN DER RIET, Clement, D. ,  WAI, Siu-wah ,  VUKOVIC, Dragan ,  TANK, Klaus

IPC分类号： E21B10/22 ,  E21B10/24

CPC分类号： E21B10/23 ,  F16C17/10 ,  F16C33/106 ,  F16C43/04 ,  F16C2352/00 ,  Y10T29/49679

摘要： Bearings for downhole tools including a first bearing member and a second bearing member, at least one of the first and second bearing members having a channel formed therein. Methods of cooling bearings of downhole tools comprise flowing a fluid within a channel formed in at least one bearing member. Heat is transferred from at least the at least one bearing member to the fluid. The fluid is flowed away from the at least one bearing member.

公开(公告)号：EP2852731A1

公开(公告)日：2015-04-01

申请号：EP13794471.6

申请日：2013-05-22

申请人： Baker Hughes Incorporated ,  Element Six Limited

发明人： DIGIOVANNI, Anthony, A. ,  KADIOGLU, Yavuz ,  SCOTT, Danny, E. ,  MEINER, Matthew, J. ,  PESSIER, Rudolf, Carl ,  LYONS, Nicholas, J. ,  VAN DER RIET, Clement, D. ,  HERSCHELL, Donald, Royceton ,  JONKER, Cornelis, Roelof ,  NILEN, Roger, William, Nigel ,  DOLAN, Gerard, Peter

IPC分类号： E21B10/46 ,  E21B10/42

CPC分类号： E21B10/5673 ,  B22F2005/001 ,  B23P15/28 ,  B24D18/00 ,  E21B7/00 ,  E21B10/573 ,  E21B10/60

摘要： Cutting elements for earth-boring tools include one or more recesses and/or one or more protrusions in a cutting face of a volume of superabrasive material. The superabrasive material may be disposed on a substrate. The cutting face may be non-planar. The recesses and/or protrusions may include one or more linear segments. The recesses and/or protrusions may comprise discrete features that are laterally isolated from one another. The recesses and/or protrusions may have a helical configuration. The volume of superabrasive material may comprise a plurality of thin layers, at least two of which may differ in at least one characteristic. Methods of forming cutting elements include the formation of such recesses and/or protrusions in and/or on a cutting face of a volume of superabrasive material. Earth-boring tools include such cutting elements, and methods of forming earth-boring tools include attaching such a cutting element to a tool body.