公开(公告)号：EP1428974A8

公开(公告)日：2004-10-20

申请号：EP04075738.7

申请日：1999-05-12

申请人： Halliburton Energy Services, Inc.

发明人： Gano, John C. ,  Freeman, Tommie ,  Longbottom, Jim R. ,  Bowling, John S.

IPC分类号： E21B33/10 ,  E21B7/08 ,  E21B29/06 ,  E21B23/06 ,  E21B23/04 ,  E21B33/12 ,  E21B33/127 ,  E21B43/10 ,  E21B7/06

CPC分类号： E21B43/103 ,  E21B7/061 ,  E21B23/06 ,  E21B29/06 ,  E21B33/12 ,  E21B33/1208 ,  E21B33/1212 ,  E21B33/127 ,  E21B41/0042 ,  E21B43/106

摘要： A method of interconnecting first and second wellbores. The method comprises the steps of: forming a radially enlarged cavity (20) in the first wellbore (12) below casing (14) lining the first wellbore (20); positioning a wellbore connector (22) within the cavity (20), the wellbore connector (22) being configurable in expanded and contracted configurations; and expanding the wellbore connector (22) within the cavity (20).

公开(公告)号：EP1442320A1

公开(公告)日：2004-08-04

申请号：EP02747945.0

申请日：2002-07-10

申请人： VECTOR MAGNETICS LLC

发明人： KUCKES, Arthur, F. ,  PITZER, Rahn, G. ,  NEKUT, Anthony, G.

IPC分类号： G01V3/26 ,  G01V3/20 ,  E21B7/08 ,  E21B7/04

CPC分类号： E21B7/068 ,  E21B47/024

摘要： Apparatus and Methods are disclosed for determining the direction between a rotating magnetic field and alternating magnetic field sensors at a remote location. The curvature of a borehole drilling assembly between a rotating drill bit (10) carrying a permanent magnet (50) and sensors (46) behind a drilling motor (16) is measured to provide early indication of changes in drilling direction. A second application concerns measurement of the convergence and divergence and the skewness of two approximately parallel well bores to provide information for correcting the drilling direction to maintain parallelism. A third application measures the direction and distance to a point target to provide data for guiding drilling toward that target. The primary apparatus are an oriented, rotating permanent magnet (50) and an oriented, three component alternating magnetic field sensor.

公开(公告)号：EP1362158A1

公开(公告)日：2003-11-19

申请号：EP00971906.3

申请日：2000-10-23

申请人： Bakke Technology AS

发明人： BAKKE, Stig

IPC分类号： E21B7/08 ,  E21B4/18

CPC分类号： E21B23/08 ,  E21B4/18 ,  E21B17/1014 ,  E21B17/1057 ,  E21B23/00 ,  E21B23/04 ,  E21B29/005 ,  E21B33/13

摘要： There has been explained a method and an apparatus for use in the advancing of a rotating motorised downhole tool for carrying out operations in an oil/gas well, especially in connection with the drilling and milling away of casing/casing sections in a well, which is to be abandoned and plugged by grouting with a cement mixture, which will then reach the formation wall surface where the casing/casing portion was milled away and removed. The rotating tool and its driving motor are indirectly suspended on coiled tubing at the free end thereof. As the platforms used for carrying out these operations are normally without rigs, it is advantageous to use coiled tubing to advance the tool/motor. However, coiled tubing cannot absorb a sufficient torque from the tool/motor. Therefore the tool with its motor is connected to a carriage, a so-called 'rolling anchor' (1) which absorb torques that occur, and is connected to the end of coiled tubing through a swivel coupling (so that the torque will not be transmitted). Through the carriage (1) connected through the swivel coupling to the coiled tubing, a pull on the coiled tubing provides the tool and motor with advancing power for longitudinal movement, so that the advancing of the tool takes place from below upwards, whereby it has also been taken into account, that to the coiled tubing there cannot be supplied any particularly great downward forces.

公开(公告)号：EP0996812A4

公开(公告)日：2001-03-21

申请号：EP98911498

申请日：1998-03-06

申请人： MARATHON OIL CO

发明人： COLLINS GARY J

IPC分类号： E21B7/04 ,  E21B7/06 ,  E21B7/08 ,  E21B23/00 ,  E21B23/12 ,  E21B33/03 ,  E21B33/047 ,  E21B41/00 ,  E21B43/10 ,  E21B43/14 ,  E21B43/30

CPC分类号： E21B41/0042 ,  E21B7/043 ,  E21B7/061 ,  E21B23/002 ,  E21B23/006 ,  E21B33/03 ,  E21B33/047 ,  E21B43/103 ,  E21B43/14 ,  E21B43/305

摘要： A deformed multiple well template (10, 110, 210) and a process for positioning the deformed template (10, 110, 210) downhole, expanding the template and drilling at least one subterranean well bore via said template (10, 110, 210). The template (10, 110, 210) has at least a portion thereof deformed and may be symmetrical or asymmetrical as deformed and/or expanded.

公开(公告)号：EP0852653A4

公开(公告)日：2001-03-21

申请号：EP96935958

申请日：1996-09-25

申请人： NATURAL RESERVES GROUP INC

发明人： GRAHAM STEPHAN A

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B23/12 ,  E21B34/14 ,  E21B41/00 ,  E21B43/14 ,  E21B47/00 ,  E21B23/00 ,  E21B43/00 ,  G03B37/00

CPC分类号： E21B34/14 ,  E21B7/061 ,  E21B23/002 ,  E21B41/0042 ,  E21B43/14 ,  E21B47/0002

摘要： In a cased wellbore (10) having one or more cased and cemented drainholes (22, 24) extending therefrom such that the elliptical shaped opening (44) or junction of each drainhole (22, 24) with the primary well (10) is sealed and cut flush with the inside of the primary well casing (18), inventive method and apparatus are disclosed for: (a) isolating each perforated and/or drainhole (22, 24) completion within the primary wellbore (10), (b) providing flow control means (162, 164) for each completion to permit selective testing, stimulation, production, or abandonment, and (c) facilitating selective re-entry into any remedial work.

公开(公告)号：EP0857247A4

公开(公告)日：2000-12-27

申请号：EP96929862

申请日：1996-09-05

申请人： MARATHON OIL CO

发明人： COLLINS GARY J ,  TRAHAN KEVIN O ,  BAUGH JOHN LINDLEY

IPC分类号： E21B7/00 ,  E21B7/04 ,  E21B7/06 ,  E21B7/08 ,  E21B23/00 ,  E21B23/12 ,  E21B33/03 ,  E21B33/047 ,  E21B43/017 ,  E21B43/14 ,  E21B43/30 ,  E21B43/00

CPC分类号： E21B23/006 ,  E21B7/043 ,  E21B7/061 ,  E21B7/068 ,  E21B23/002 ,  E21B33/03 ,  E21B33/047 ,  E21B41/08 ,  E21B43/017 ,  E21B43/14 ,  E21B43/305

摘要： An apparatus (10) and process are provided for drilling and completing multiple subterranean wells from a template which is secured within a cased well bore extending to the surface. An orienting cam (11) having a bore (20) therethrough is positioned above the template such that the bore through the orienting cam is automatically aligned with one of at least two bores through the template. Fluid tight seals are provided between the orienting cam and the casing and between the orienting cam and one of the at least two bores through the template. Thereafter, a drill string including a drill bit is lowered from the surface of the earth through the casing, the bore through the orienting cam and the one bore through said template to drill a first subterranean well bore.

公开(公告)号：EP1038087A1

公开(公告)日：2000-09-27

申请号：EP98939335.0

申请日：1998-08-11

申请人： MARATHON OIL COMPANY

发明人： COLLINS, Gary, J.

IPC分类号： E21B15/04 ,  E21B7/08 ,  E21B43/01

CPC分类号： E21B23/006 ,  E21B7/043 ,  E21B7/061 ,  E21B7/068 ,  E21B23/002 ,  E21B33/03 ,  E21B33/047 ,  E21B43/017 ,  E21B43/14 ,  E21B43/305

摘要： An apparatus (10) and process are provided for drilling and completing multiple subterranean wells from a template which is secured within a cased well bore extending to the surface. An orienting cam having a bore (20) therethrough is positioned above the template such that the bore through the orienting cam is automatically aligned with one of at least two bores through the template. Fluid tight seals are provided between the orienting cam and the casing and between the orienting cam and one of the at least two bores through the template. Thereafter, a drill string including a drill bit is lowered from the surface of the earth through the casing, the bore through the orienting cam and the one bore through said template to drill a first subterranean well bore.

公开(公告)号：EP1025334A2

公开(公告)日：2000-08-09

申请号：EP98954409.3

申请日：1998-10-09

申请人： SE S.r.l.

发明人： ESPOSITO, Giuseppe

IPC分类号： E21B7/08 ,  E21B10/46 ,  E21B6/00 ,  E21B36/00 ,  E21B7/28

CPC分类号： E21B36/001 ,  E21B6/00 ,  E21B7/064 ,  E21B7/28 ,  E21B10/46

摘要： A rotary-percussion device for directional drilling in rock comprises a substantially cylindrical, rotatable body portion (15) housing a percussion hammer, and a frustroconical head (2) eccentrically mounted on the front of the body portion. The minimum diameter face (3) of the head is adjacent to the body portion. The axis (6) of the head is parallel to but offset from the axis (5) of the body. The front face (4) of the head is chisel-shaped and comprises at least one oblique plane (11) sloping forwardly in the same direction as the offset of the head axis relative to the body axis.

公开(公告)号：EP4242415A2

公开(公告)日：2023-09-13

申请号：EP23183928.3

申请日：2017-10-21

申请人： Turbo Drill Industries, Inc.

发明人： RITCHIE, Sheldon ,  FEDDEMA, Chad

IPC分类号： E21B7/08

摘要： A bearing housing for a bottomhole assembly of a downhole tool includes an upper bearing housing, lower bearing housing, and a driveshaft. The upper bearing housing and lower bearing housing include a bore defining a bore longitudinal axis. The outer surface of the upper bearing housing defining a bearing housing longitudinal axis, the bearing housing longitudinal axis formed at an angle to the bore longitudinal axis. The upper bearing housing may be formed by forming a bore through an upper bearing housing blank and subsequently forming the outer surface of the upper bearing housing concentric with the bearing housing longitudinal axis.

公开(公告)号：EP3060743B1

公开(公告)日：2020-09-09

申请号：EP13900685.2

申请日：2013-12-31

申请人： Halliburton Energy Services Inc.

发明人： GENDRE, Andrew S. ,  TELFER, Stuart Alexander

IPC分类号： E21B7/08 ,  E21B29/06