公开(公告)号：EP2934798B1

公开(公告)日：2023-11-08

申请号：EP13815503.1

申请日：2013-12-20

发明人： HOOP, Matthaeus ,  WEBER, Christoph ,  BRITT, Thomas ,  AMMAN, Christoph

IPC分类号： B23B31/113 ,  B23B51/04 ,  E21B17/046 ,  B28D1/04 ,  E21B10/62

公开(公告)号：EP4063609B1

公开(公告)日：2023-09-06

申请号：EP22174002.0

申请日：2018-01-31

发明人： Ruehmann, Rainer ,  Sachtleben, Benjamin ,  Geissler, David

IPC分类号： E21B19/16 ,  E21B10/62

公开(公告)号：EP4234878A1

公开(公告)日：2023-08-30

申请号：EP23176873.0

申请日：2020-08-17

申请人： Vermeer Manufacturing Company

发明人： SMITH, Jacob Richard ,  LANGENFELD, Michael David ,  DORIN, Tyler J.

IPC分类号： E21B7/04 ,  E21B7/20 ,  E21B7/30 ,  E21B10/42 ,  E21B10/62 ,  E21B12/00 ,  F16L1/028

摘要： A rotary drill bit for use with a horizontal directional drill string. A coupler at a proximal axial end is configured to attach the rotary drill bit to a drill head at a distal end of the drill string. A cutting portion at a distal axial end is provided with a plurality of vanes with respective cutters that operate to cut a hole in earth when the rotary drill bit is rotated about a central axis. The plurality of vanes project radially outwardly from a surface of the cutting portion such that the surface forms respective troughs circumferentially interspersed with the plurality of vanes. A plurality of engagement features is positioned axially within the cutting portion and radially inward of an outer cutting diameter to facilitate attachment of a product pullback device between the plurality of vanes without removing the rotary drill bit, or any portion thereof, from the drill head.

公开(公告)号：EP3887638A1

公开(公告)日：2021-10-06

申请号：EP19889419.8

申请日：2019-11-26

申请人： Ulterra Drilling Technologies L.P.

发明人： BROOKS, Nathan Andrew

IPC分类号： E21B10/62 ,  E21B10/08 ,  E21B10/20

公开(公告)号：EP3765705A1

公开(公告)日：2021-01-20

申请号：EP19766678.7

申请日：2019-03-14

申请人： BAKER HUGHES HOLDINGS LLC

发明人： PETERS, Volker ,  HOHL, Andreas ,  HEINISCH, Dennis ,  RECKMANN, Hanno ,  MIHAJLOVIC, Sasa

IPC分类号： E21B17/07 ,  E21B10/62

公开(公告)号：EP2622169B1

公开(公告)日：2020-11-18

申请号：EP11829781.1

申请日：2011-09-26

申请人： Baker Hughes Holdings LLC

发明人： LYONS, Nicholas, J. ,  SCOTT, Danny, E.

IPC分类号： E21B10/54 ,  E21B10/56 ,  E21B10/62 ,  B24D3/00 ,  B22F3/14 ,  B22F7/06 ,  C22C26/00 ,  C22C29/08 ,  B24D99/00 ,  E21B10/573 ,  B22F5/00 ,  B01J3/06 ,  B23B27/14 ,  B23B27/18 ,  B23B27/20 ,  B24D18/00 ,  C09K3/14

公开(公告)号：EP2880241B1

公开(公告)日：2019-08-14

申请号：EP13824743.2

申请日：2013-07-30

申请人： Baker Hughes, a GE company, LLC

发明人： SCHWEFE, Thorsten ,  RAZ, Dan ,  RINBERG, Gregory ,  BRUK, Mark

IPC分类号： E21B10/62

公开(公告)号：EP2531690B1

公开(公告)日：2019-04-03

申请号：EP11740494.7

申请日：2011-02-07

申请人： Baker Hughes, a GE company, LLC

发明人： LYONS, Nicholas, J. ,  SCOTT, Danny, E. ,  PESSIER, Rudolf, Carl ,  GAVIA, David ,  BILEN, Juan, Miguel

IPC分类号： E21B10/54 ,  E21B10/62 ,  E21B10/567 ,  E21B10/43

公开(公告)号：EP3390761A1

公开(公告)日：2018-10-24

申请号：EP16876749.9

申请日：2016-12-16

申请人： Baker Hughes, a GE company, LLC

发明人： JAIN, Jayesh, Rameshlal ,  VEMPATI, Chaitanya, K. ,  RICKS, Gregory, L. ,  BILEN, Juan, Miguel

IPC分类号： E21B10/42 ,  E21B10/43 ,  E21B10/62

CPC分类号： E21B10/62 ,  E21B7/064 ,  E21B10/08 ,  E21B10/20 ,  E21B10/42 ,  E21B10/54 ,  E21B10/633 ,  E21B17/1092 ,  E21B2010/622

摘要： A drill bit including a bit body and a pad. The pad extends from a retracted position to an extended position from a bit surface at a first rate and retracts from the extended position to a retracted position at a second rate that is less than the first rate.

公开(公告)号：EP3390760A1

公开(公告)日：2018-10-24

申请号：EP16876589.9

申请日：2016-12-14

申请人： Baker Hughes, a GE company, LLC

发明人： RICKS, Gregory, L. ,  VEMPATI, Chaitanya, K. ,  JAIN, Jayesh, Rameshlal ,  BILEN, Juan, Miguel ,  PHILLIPS, Anthony

IPC分类号： E21B10/42 ,  E21B10/62

CPC分类号： E21B10/62 ,  E21B10/42 ,  E21B10/633

摘要： A self-adjusting earth-boring tool includes a body carrying cutting elements and an actuation device disposed at least partially within the body. The actuation device may include a first fluid chamber, a second fluid chamber, a first reciprocating member, and a second reciprocating member. The first and second reciprocating members may divide portions of the first fluid chamber from portions of the second fluid chamber. A connection member may be attached to both of the first and second reciprocating members and may have a drilling element removably coupled thereto. A first fluid flow path may extend from the second fluid chamber to the first fluid chamber. A second fluid flow path may extend from the first fluid chamber to the second fluid chamber.