公开(公告)号：GB2395210B

公开(公告)日：2006-09-06

申请号：GB0326054

申请日：2003-11-07

Applicant: WEATHERFORD LAMB

Inventor： PLUCHECK CLAYTON ,  WILLIAMSON PAT ,  HAUGEN DAVID M ,  DURST DOUG

IPC: E21B43/08 ,  E21B41/00 ,  E21B43/10

Abstract: A method and apparatus for completing a wellbore junction, wherein, in one embodiment, a first leg of a screen is fastened within a first tubular with a preformed window. The first tubular houses a whipstock with a cut-out portion containing a folded second leg of the screen. The first tubular is lowered into a junction of a central and a lateral wellbore. A second tubular is lowered within the first tubular and catches an end of the folded second leg of the screen thereby unfolding and expanding the screen as the second tubular is guided into the lateral wellbore.

公开(公告)号：CA2530915A1

公开(公告)日：2006-06-30

申请号：CA2530915

申请日：2005-12-20

Applicant: WEATHERFORD LAMB

Inventor： BOTHNER RONALD E ,  HAUGEN DAVID M ,  ROBERTS JOHN DOUGLAS ,  NERO MICHAEL ,  HOSIE DAVID G ,  NUTH DAVID ,  COLLINS RONALD B ,  DAVID JOHN ,  TILTON FREDERICK T ,  WILSON PAUL

IPC: E21B19/22 ,  E21B23/14 ,  E21B29/10 ,  E21B43/11 ,  E21B47/01 ,  E21B47/12

Abstract: The present invention generally relates to an apparatus and a method fo r conveying and operating tools into a wellbore. In one aspect, a method of performing a downhole operation in a wellbore is provided. The method includes pushing a continuous rod into the wellbore, wherein the continuous rod includes a memb er disposed therein. The method further includes positioning the continuous rod proximate at a predetermined location in the wellbore and performing the downhole operation. In yet another aspect, a system for performing a downhole operati on in a wellbore is provided.

公开(公告)号：GB2401131B

公开(公告)日：2006-06-14

申请号：GB0409942

申请日：2004-05-04

Applicant: WEATHERFORD LAMB

Inventor： HAUGEN DAVID M ,  HARRALL SIMON JOHN ,  METCALFE PAUL DAVID ,  TILTON FREDERICK THOMAS

IPC: E21B43/10

公开(公告)号：GB2405428B

公开(公告)日：2006-05-03

申请号：GB0426073

申请日：2003-05-29

Applicant: WEATHERFORD LAMB

Inventor： GIROUX RICHARD ,  HAUGEN DAVID M ,  HOSIE DAVID G

IPC: E21B43/10 ,  E21B21/10 ,  E21B34/06 ,  E21B34/10 ,  E21B34/14

Abstract: An apparatus for reducing pressure surges in a wellbore comprising a body having a bore therethrough, the bore providing a fluid path for wellbore fluid between a first and second end of the body, at least one fluid path permitting the wellbore fluid to pass between the bore and an annular area formed between an outer surface of the body and the walls of a wellbore therearound, and a number of closure mechanisms whereby the at least one fluid path is selectively closable to the flow of fluid.

公开(公告)号：GB2415451A

公开(公告)日：2005-12-28

申请号：GB0516281

申请日：2004-02-09

Applicant: WEATHERFORD LAMB

Inventor： GIROUX RICHARD L ,  GALLOWAY GREGORY GUY ,  BRUNNERT DAVID J ,  MAGUIRE PATRICK G ,  LE TUONG THANH ,  ODELL AL ,  HAUGEN DAVID M ,  TILTON FREDERICK THOMAS ,  LIRETTE BRENT J ,  MURRAY MARK ,  MOYES PETER BARNES

IPC: E21B7/20 ,  E21B21/00 ,  E21B21/10 ,  E21B33/14 ,  E21B43/10

Abstract: The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

公开(公告)号：CA2714327A1

公开(公告)日：2004-09-16

申请号：CA2714327

申请日：2004-03-05

Applicant: WEATHERFORD LAMB

Inventor： SHAHIN DAVID ,  HABETZ JEFF ,  HAUGEN DAVID M ,  THOMPSON GARY ,  PIETRAS BERND-GEORG ,  HOLLINGSWORTH JIMMY L ,  REINHOLDT BERND

IPC: E21B19/16 ,  E21B19/06

Abstract: The present invention generally relates to a method and apparatus for drilling with a top drive system. In one aspect, the present invention provides for a top drive system having a top drive, top drive adapter, and a tubular positioning apparatus. In one aspect, the top drive adapter is pivotably connected to the top drive for pivoting the top drive adapter toward the casing string with respect to the top drive. In another aspect, the system includes a telescopic link system connected to a lower portion of the top drive adapter to move the casing string into engagement with the top drive adapter. In another aspect, the top drive adapter includes a housing operatively connected to the top drive and a plurality of retaining members disposed in the housing for gripping the tubular. In another aspect, the tubular positioning apparatus includes a gripping member for engaging a tubular and a conveying member for positioning the gripping member. A spinner may be provided to rotate the tubular.

公开(公告)号：CA2517883A1

公开(公告)日：2004-09-16

申请号：CA2517883

申请日：2004-03-05

Applicant: WEATHERFORD LAMB

Inventor： BRUNNERT DAVID J ,  CARTER THURMAN B ,  HAUGEN DAVID M

IPC: E21B7/20 ,  E21B10/32 ,  E21B41/00 ,  E21B43/10

Abstract: Embodiments of the present invention generally provide methods and apparatus for forming a tubular-lined wellbore which does not decrease in diameter wit h increasing depth or length. In one aspect, a portion of a second casing (220 ) is expanded into a portion of a first casing (204) having a larger inner diameter than the remaining portion of the first casing string. In another aspect, the portion of the second casing is expanded into a portion of the first casing having a compressible member (505) therearound. In another aspect, a lined lateral wellbore may be constructed by forming a lateral wellbore extending from a main wellbore lined with casing. A diameter of at least a portion of the lateral wellbore may be expanded. An expandable tubul ar element may be run into lateral wellbore and expanded to have an inner diameter equal to or larger than an inner diameter of the main wellbore casing. Embodiments provide a fluid path around casing before sealing the casing within a wellbore or within a well casing, even after the casing has been hung within the wellbore or from the well casing.

公开(公告)号：CA2459839A1

公开(公告)日：2004-09-05

申请号：CA2459839

申请日：2004-03-05

Applicant: WEATHERFORD LAMB

Inventor： HAUGEN DAVID M

IPC: E21B3/04 ,  E21B17/00 ,  E21B19/10 ,  E21B19/16 ,  E21B19/24 ,  E21B21/01 ,  E21B21/10 ,  E21B33/068

Abstract: The present invention provides an apparatus that permits sections of tubula rs to be connected to or disconnected from a string of pipe during a drilling operation. The apparatus further permits the sections of drill pipe to be rotated and t o be axially translated during the connection or disconnection process. The apparatus further allows for the continuous circulation of fluid to and through the tubular string during the makeup or breakout process. The apparatus defines a rig assembly comprising a top drive mechanism, a rotary drive mechanism, and a fluid circulating device. Rotation and axial movement of the tubular string is alternately provided by the top drive and the rotary drive. Additionally, continuous fluid flow into the tubular string is provided through the circulation device and alternately through the tubular section once a connection is made between an upper tubular connected to the top driv e mechanism and the tubular string.

公开(公告)号：CA2760504A1

公开(公告)日：2004-08-26

申请号：CA2760504

申请日：2004-02-09

Applicant: WEATHERFORD LAMB

Inventor： GIROUX RICHARD L ,  GALLOWAY GREGORY G ,  BRUNNERT DAVID J ,  MAGUIRE PATRICK G ,  LE TUONG THANH ,  ODELL ALBERT C II ,  HAUGEN DAVID M ,  TILTON FREDERICK T ,  LIRETTE BRENT J ,  MURRAY MARK ,  MOYES PETER BARNES

IPC: E21B7/20 ,  E21B43/10

Abstract: The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

公开(公告)号：CA2451263A1

公开(公告)日：2004-05-27

申请号：CA2451263

申请日：2003-11-27

Applicant: WEATHERFORD LAMB

Inventor： HAUGEN DAVID M ,  SHAHIN DAVID ,  NEWMAN JOHN W ,  KOITHAN THOMAS ,  RUARK GRAHAM

IPC: B23P19/06 ,  B25B23/14 ,  E21B3/02 ,  E21B19/16 ,  E21B21/02 ,  E21B33/05 ,  B25B13/50 ,  E21B17/08

Abstract: A method and apparatus for connecting threaded members while ensuring that a proper connection is made. In one embodiment, the applied torque and/ or rotation are measured at regular intervals throughout a pipe connection makeup. When a shoulder contact is detected, a predetermined torque value and/or rotation value is added to the measured torque and/or rotation values, respectively, at shoulder contact and rotation continued until this calculated value(s) is reached.