公开(公告)号：EP2935774B1

公开(公告)日：2018-08-01

申请号：EP13864544.5

申请日：2013-11-27

申请人： Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited ,  Schlumberger Technology B.V. ,  PRAD Research and Development Limited

发明人： HACI, Marc ,  MAIDLA, Eric E.

IPC分类号： E21B44/02 ,  E21B19/08 ,  E21B7/04 ,  E21B44/00 ,  E21B7/06

CPC分类号： E21B44/00 ,  E21B7/04 ,  E21B7/068 ,  E21B7/10 ,  E21B47/024

摘要： A method for directional drilling of a wellbore includes automatically rotating a drill string having a steerable drilling motor at an end thereof in a first direction so that a measured torque related parameter thereon reaches a first value. The drill string is automatically rotated in a second direction so that the measured torque related parameter reaches a second value lower than the first value. A rate of release of the drill string is automatically controlled so that at least one of selected drilling fluid pressure and a range thereof is maintained.

公开(公告)号：EP2191096B1

公开(公告)日：2018-07-11

申请号：EP08828381.7

申请日：2008-08-27

申请人： Vermeer Manufacturing Company

发明人： RUNQUIST, Randy, Ray ,  KELPE, Hans

IPC分类号： E21B7/04 ,  E21B41/00 ,  E21B7/06

CPC分类号： E21B7/046 ,  E21B44/02

摘要： Various embodiments are directed to a method of switching horizontal directional drilling procedures during bore path turning. Such methods can include identifying a hierarchal arrangement of a plurality of different boring procedures utilizing different boring techniques, the hierarchy arrangement representing boring procedures of increasing ability to bore through harder soil while changing a trajectory of a boring tool. Such methods can further include boring a first leg of a curved bore path using a boring tool connected to a drill rig by a drill string, the first leg being bored using a first boring procedure of the plurality of different boring procedures. Such methods can further include monitoring a plurality of boring parameters during boring of the first leg, the plurality of boring parameters comprising: torsional pressure of the drill string, rotational travel of the drill string, hydraulic pressure, and axial displacement. Such methods can further include switching from boring the first leg of the curved bore path using the first boring procedure to boring a second leg using a second boring procedure of the plurality of boring procedures, the switch based on one or more of the boring parameters deviating past a threshold.

公开(公告)号：EP3334891A1

公开(公告)日：2018-06-20

申请号：EP16836307.5

申请日：2016-07-07

申请人： Impulse Downhole Solutions Ltd.

发明人： KINSELLA, Doug ,  LEROUX, Kevin ,  LORENSON, Troy ,  PARENTEAU, Dwayne

IPC分类号： E21B7/04 ,  E21B17/10

CPC分类号： E21B28/00 ,  E21B7/04 ,  E21B17/10 ,  E21B21/10 ,  E21B34/10 ,  E21B2034/007

摘要： An improved method of drilling a substantially lateral section of a wellbore is provided. A first segment of a drilling string with a bottom hole assembly is extended into a wellbore. At determined intervals of the drilling string, a plurality of friction reduction segments are connected as the wellbore is drilled and the drilling string is extended into the wellbore. The friction reduction segments comprise a friction reduction tool and corresponding activation tool for activating the friction reduction tool. The activation tool selectively diverts drilling fluid into a motor powering the friction reduction tool or away from the motor, and can be a ball catch assembly that is activated when a suitably sized projectile is seated in the assembly. Multiple friction reduction segments can be connected to the drilling string and one or more of the plurality of segments can be activated.

公开(公告)号：EP3271541A1

公开(公告)日：2018-01-24

申请号：EP16708083.7

申请日：2016-03-04

申请人： Herrenknecht AG

发明人： GERHARDT, Tobias ,  LUBBERGER, Michael ,  ENGEL, Tobias

IPC分类号： E21B7/04 ,  E21B17/00 ,  E21B21/00 ,  E21B17/10

摘要： The invention relates to a drill string element for installing in a drill string, in particular for horizontal or slant directional drilling (HDD or SDD), for creating a borehole (100) along a drilling route, in particular for laying a pipeline, comprising a tubular main body (11) having connecting elements (13, 15) at both ends for connecting the drill string element (10) to the drill string, wherein the drill string element (10) has an interior (22), through which a flushing medium for flushing the borehole (100) and transporting away cuttings loosened by a drill head connected to the drill string can be transported, having at least one opening (23) in a wall (16) of the main body (11), which opening is connected to the interior (22) and through which opening at least part of the flushing medium flowing through the interior enters an annular space (102) between the borehole wall (103) and the main body (11), characterized in that at least one body (17) is arranged on the outer wall (16) over the opening (23), in which at least one body a flow channel (24) is at least partially arranged, that the flow channel (24) has at least one flow path and is fluidically connected to the opening (23) by means of an inlet opening (25), that the flow channel (24) has at least one outlet opening (28) on the side of the flow channel (24) facing away from the opening (23), and that the clear cross-section of the opening (23) and/or inlet opening (25) is smaller or larger than the clear cross-section of the outlet opening (28).

公开(公告)号：EP2880246B1

公开(公告)日：2018-01-10

申请号：EP13825665.6

申请日：2013-07-30

申请人： Baker Hughes Incorporated

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

IPC分类号： E21B7/04 ,  E21B4/00

CPC分类号： E21B10/62

摘要： A drill bit and method of drilling a wellbore. The drill bit includes a pad configured to extend and retract from a surface of the drill bit, and a force application device configured to extend and retract the pad. The force application device includes a screw driven by an electric motor that linearly moves a drive unit to extend and retract the pad from the drill bit surface. The drill bit may be conveyed by a drill string and the pad may be extended from the drill bit face to drill the wellbore.

公开(公告)号：EP3231981A1

公开(公告)日：2017-10-18

申请号：EP17000572.2

申请日：2017-04-05

申请人： TRACTO-TECHNIK GmbH & Co. KG

发明人： Schumacher, Philipp ,  Völkel, Gerhard

IPC分类号： E21B7/04 ,  E21B15/04

CPC分类号： E21B12/00 ,  E21B4/14 ,  E21B7/046 ,  E21B7/26 ,  E21B15/04

摘要： Die Erfindung betrifft eine Lafette (5) für eine Erdrakete (8) zur Positionierung der Erdrakete in einer Startbaugrube (1), wobei die Lafette zwei Aufnahmen (6, 7) mit je einer Klemmung (9) aufweist und die Klemmungen und die Aufnahmen unabhängig voneinander betätigbar sind.

摘要翻译： 本发明涉及到安装（5），用于隧穿装置（8），用于在开始建筑物坑（1）定位在地球火箭，其特征在于，所述安装两个座（6,7），每个夹具（9），并且夹具和独立于容器 可以相互促动。

公开(公告)号：EP2638242A4

公开(公告)日：2017-10-11

申请号：EP11840113

申请日：2011-11-09

申请人： VERMEER MFG CO

发明人： RUNQUIST RANDY R ,  HOELTING KEITH A

IPC分类号： E21B47/01 ,  E21B7/04 ,  E21B7/06 ,  E21B10/42 ,  E21B47/12

CPC分类号： E21B3/00 ,  E21B7/046 ,  E21B7/064 ,  E21B10/61 ,  E21B47/01 ,  E21B47/011 ,  E21B2010/607

摘要： A drilling apparatus is adapted for connection to a drill string such that the drill string rotates the drilling apparatus in a rotational cutting motion. The drilling apparatus includes a sonde housing having a distal end and a proximal end. The sonde housing includes a top platform positioned adjacent the distal end of the sonde housing and further includes a tongue positioned on the top platform. The drilling apparatus further includes a rotary cutting tool mounted to the distal end of the sonde housing.

公开(公告)号：EP2606197A4

公开(公告)日：2017-10-04

申请号：EP11817570

申请日：2011-08-16

申请人： TEEK MINING SOLUTIONS PTY LTD

发明人： ROWLING PETER SIDNEY

IPC分类号： E21B19/24 ,  E21B7/04

CPC分类号： E21B19/24 ,  E21B7/046 ,  F16C35/02 ,  F16C2226/60 ,  F16C2226/70 ,  F16C2352/00

摘要： A centralizer for use in a rock drill rig is disclosed. The centralizer includes a clamping member which moves generally tangentially to a bush, in order to clamp the bush in place within the centralizer.

摘要翻译： 公开了一种用于凿岩机的扶正器。 扶正器包括夹持构件，该夹持构件大致与衬套相切地移动，以便将衬套夹紧在扶正器内的适当位置。

公开(公告)号：EP2737170B1

公开(公告)日：2017-08-16

申请号：EP11870270.3

申请日：2011-07-29

申请人： Landmark Graphics Corporation

发明人： ROSS, William, C. ,  LANGENWALTER, Richard, J.

IPC分类号： E21B47/00 ,  E21B47/09 ,  E21B7/04 ,  G01V11/00

CPC分类号： G06T17/05 ,  E21B7/046 ,  E21B47/09 ,  G01V11/00

公开(公告)号：EP2905419B1

公开(公告)日：2017-04-12

申请号：EP15154128.1

申请日：2015-02-06

申请人： Weatherford Technology Holdings, LLC

发明人： Barker, Ronald Gordon ,  Farley, Douglas Brian ,  Hogg, William Clifford

IPC分类号： E21B29/06 ,  E21B41/00 ,  E21B43/10 ,  E21B7/04 ,  E21B47/04

CPC分类号： E21B43/108 ,  E21B7/046 ,  E21B29/06 ,  E21B41/0042 ,  E21B43/103 ,  E21B47/04

摘要： A method for lining an open hole section (105) of a wellbore includes lowering a tubular member (200) through a cased section (120) of the wellbore, expanding the tubular member (200) in an open hole section (105) of the wellbore, thereby anchoring (220) the tubular member in the wellbore, forming a window (410) in a sidewall of the tubular member, and drilling a lateral wellbore (405) through the window.

摘要翻译： 用于衬套井眼的开孔部分（105）的方法包括：通过井眼的套管部分（120）降低管状构件（200），使管状构件（200）在孔 井筒，从而将管状构件锚固（220）在井筒中，在管状构件的侧壁中形成窗口（410），并且穿过窗口钻出侧井眼（405）。