公开(公告)号：US3840970A

公开(公告)日：1974-10-15

申请号：US38153273

申请日：1973-07-23

申请人： HAWKINS H

发明人： HAWKINS H

IPC分类号： E21B19/16 ,  B23Q3/18 ,  E21B19/00 ,  E21B19/18 ,  B23Q17/00 ,  B25B13/00 ,  B25B21/00

CPC分类号： E21B19/18 ,  B23Q3/18 ,  E21B19/00 ,  Y10T29/49762

摘要： Apparatus and method for centering a lower oil well tool beneath a suspended upper oil well tool and for positioning and rotational coupling of the tools. A centering device receives and positions the lower oil well in generally vertical alignment with the upper oil well tool. A rotatable table carries the centering device at a fixed, predetermined location thereon. The table can be raised upwardly carrying the centering device and the lower oil well tool until the lower oil well tool engages the upper oil well tool. The table can then be rotated to begin the coupling of the two tools. The centering device can also be used alone and can accommodate oil well tools of various diameters and configurations.

摘要翻译： 用于将下部油井工具对准在悬挂的上部油井工具下方并用于工具的定位和旋转联接的装置和方法。 定心装置接收并定位与上部油井工具大致垂直对准的下部油井。 可旋转工作台将定中心装置固定在其上的固定的预定位置。 该台可以向上抬起，承载中心装置和下部油井工具，直到下部油井工具接合上部油井工具。 然后可以旋转桌子开始两个工具的联接。 定心装置也可以单独使用，并且可以容纳各种直径和构造的油井工具。

公开(公告)号：US3698266A

公开(公告)日：1972-10-17

申请号：US3698266D

申请日：1971-04-26

申请人： ATLAS COPCO AB

发明人： MADER HORST HEINRICH GEORG

IPC分类号： B23B31/12 ,  B25B13/50 ,  E21B19/18 ,  B25B13/00 ,  B25B13/28 ,  B25B21/02

CPC分类号： B25B13/5066 ,  B23B31/1261 ,  E21B19/18

摘要： A pipe wrench has a holder ring unit (2-2) and a dog actuating ring unit (1-1) which units are coaxial and turnable relative to each other by means of a handle (8, 9). A number of dogs (3) are pivotally mounted on bolts (5) of the holder ring unit and actuated so as to pivot into gripping positions by means of bolts (6) of the dog actuating ring unit when the handle is actuated.

公开(公告)号：US2458951A

公开(公告)日：1949-01-11

申请号：US63461045

申请日：1945-12-12

申请人： MALINAK SAMUEL H

发明人： MALINAK SAMUEL H

IPC分类号： E21B19/18

CPC分类号： E21B19/18 ,  Y10T29/53687 ,  Y10T29/53704 ,  Y10T29/5393 ,  Y10T29/53991

公开(公告)号：US2223600A

公开(公告)日：1940-12-03

申请号：US29909139

申请日：1939-10-12

申请人： REED ROLLER BIT CO

发明人： CARLETON MICHAEL D

IPC分类号： E21B19/18

CPC分类号： E21B19/18 ,  Y10T29/53687

公开(公告)号：US20240328264A1

公开(公告)日：2024-10-03

申请号：US18573734

申请日：2022-07-13

申请人： Vale S.A.

发明人： Enilton Edson FRADE ,  Bruno Fonseca VAZ ,  Arlem Flávio DE SENA

IPC分类号： E21B19/18 ,  E21B12/00

CPC分类号： E21B19/18 ,  E21B12/00

摘要： A device for unlocking bits from a drill, the drill comprising an articulated drill string with a percussion hammer that receives bits at its end, the device for bit unlocking comprising a decoupling wrench which is mounted on the drill and being movable between an extended position, in which the decoupling wrench is aligned with a drill hole of the pivotable drill string, and between a retracted position, in which the decoupling wrench is away from the pivotable drill string, wherein the decoupling wrench comprises: a central slot for receiving the bit coupled to the percussion hammer, and a wide range of recesses located on the inner surface of the central slot, wherein the recesses are arranged to accommodate protrusions of the bit of the percussion hammer and prevent rotational movement of the bit when the bit is accommodated in the decoupling wrench.

公开(公告)号：US20240279991A1

公开(公告)日：2024-08-22

申请号：US18110840

申请日：2023-02-16

申请人： Jay Woolley

发明人： Jay Woolley

IPC分类号： E21B19/18

CPC分类号： E21B19/18

摘要： Methods, devices and systems are disclosed for magnetically ranging while drilling with a coiled tubing unit or drill pipe by way of a an electrically conducive but environmentally electrically insulated wire installed through a coiled tubing spool or drill pipe complete with electrically insulative subs in the coiled tubing bottom hole assembly or drill pipe. The method and systems allow for the injection of excitation current into the formation by way of selectively electrifying various drill stem components, thereby facilitating current collection on a target tubular which radially emanates a magnetic field about the target well tubular(s). The method and devices allow for the construction of complex downhole current injection configurations which allow for modification of the bottom hole assembly to maximize target well signal generation in the presence of adverse environmental conditions.

公开(公告)号：US11867006B2

公开(公告)日：2024-01-09

申请号：US17893334

申请日：2022-08-23

申请人： Epiroc Drilling Solutions, LLC

发明人： Luke Bender ,  Gavin Maestas ,  Taylor Wilkin ,  Matthew Fosler ,  Samyuktha Pericharla ,  Tyler Berens

IPC分类号： E21B19/18

CPC分类号： E21B19/18

摘要： A method is disclosed for semi-automatic or automatic control of a system for changing drilling tools for a drilling rig that includes a drill tower supporting a drill string with a drill pipe at a lowermost end, and a drilling tool changer assembly having a rotatable carousel assembly with a plurality of bit adaptors for holding drilling tools. The method includes removing a first drilling tool attached to the drill pipe and attaching a second drilling tool held in the rotatable carousel assembly to the drill pipe. The method may selectively be performed semi-automatically or automatically via a control system operatively coupled to the drilling rig.

公开(公告)号：US20180216425A1

公开(公告)日：2018-08-02

申请号：US15422713

申请日：2017-02-02

申请人： CATERPILLAR GLOBAL MINING EQUIPMENT LLC.

发明人： Fernando Rene Gonzalez Gonzalez

IPC分类号： E21B19/18 ,  E21B19/16

CPC分类号： E21B19/18 ,  E21B19/161

摘要： A system for disassembling components of a drill string includes a primary wrench, a secondary wrench, and a bit removal basket. The primary wrench has a pair of jaws in which at least one of the jaws is moveable in relation to the other. The secondary wrench is disposed at a position lower than the primary wrench and is configured to define a pair of beveled faces that are adapted to restrict a rotational movement of at least one component of the drill string. The bit removal basket is disposed at a position lower than the secondary wrench. The bit removal basket is configured to define an opening therethrough. A shape of the opening is configured to correspond with profiles of at least two types of drill bits, one of the at least two types of drill bits being present for use in the drill string.

公开(公告)号：US09945195B2

公开(公告)日：2018-04-17

申请号：US14429024

申请日：2013-09-19

申请人： Frank Jost ,  Christian Funke

发明人： Frank Jost ,  Christian Funke

IPC分类号： E21B19/18 ,  E21B17/04 ,  E21B17/042

CPC分类号： E21B19/18 ,  E21B17/04 ,  E21B17/042

摘要： Producing a screw connection between a drill head provided for ground boreholes and an element of a drill pipe includes using a device for holding the drill head provided for ground boreholes. The device is held by a first clamping device of a clamping-screwing device. The element to be connected to the drill head is held by a second clamping device of the clamping-screwing-device and the element of the drill pipe to be connected is moved by the clamping-screwing device in relation to the device such that the relative rotation movement between the drill head and the element of the drill pipe required for the desired screw connection is performed by the clamping-screwing device.

公开(公告)号：US20170328137A1

公开(公告)日：2017-11-16

申请号：US15153579

申请日：2016-05-12

申请人： APS Technology, Inc.,

发明人： Carl Allison Perry ,  Guy Daigle ,  Daniel E. Burgess

IPC分类号： E21B17/02 ,  E21B19/16 ,  H01R31/06 ,  E21B17/00 ,  E21B47/00 ,  E21B17/042 ,  E21B47/12

CPC分类号： E21B17/028 ,  E21B17/003 ,  E21B17/042 ,  E21B19/16 ,  E21B19/18 ,  E21B47/00 ,  E21B47/12 ,  H01R31/06

摘要： An embodiment includes a downhole tool with first and second modular connectors. The connection modules are configured to aid make-up and assembly and improve stability during use.