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公开(公告)号：GB2415724B
公开(公告)日：2007-05-30
申请号：GB0518159
申请日：2004-03-05
Applicant: WEATHERFORD LAMB
Inventor： CARTER THURMAN B , BRUNNERT DAVID J , HAUGEN DAVID M
Abstract: Embodiments of the invention relate to an assembly for forming a cased well. The assembly may include an undercut drillable cementing shoe with a casing string connection at a first end. The shoe includes external tubing that forms a second end of the shoe and has a first section defining an enlarged inner diameter relative to a second section of the external tubing. The assembly may also include an earth removal member coupled to the second end of the shoe. The first section of the shoe is disposed between the earth removal member and the second section of the shoe. In another embodiment, the assembly may include a casing string having a first portion with a larger inner diameter than a second portion. The assembly may also include an earth removal member coupled to an end of the casing string. The first portion of the casing string is disposed between the earth removal member and the second portion of the casing string.
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公开(公告)号：GB2431942A
公开(公告)日：2007-05-09
申请号：GB0603997
申请日：2006-03-01
Applicant: WEATHERFORD LAMB
Inventor： TILTON FREDERICK T , HAUGEN DAVID M , SMITH KEVIN W , BRUNNERT DAVID J , BAILEY THOMAS F , FULLER TOM , ROOYAKKERS ROY W , BANSAL R K , SKINNER GRAHAM
Abstract: A method for drilling a wellbore comprises circulating a foam F through a tubular body and into the annulus between the tubular body and the wellbore 203, and maintaining a substantially homogenous foam flow regime F using one or more pressure control mechanisms. The control mechanism may be a choke 265, separator, gas injector, downhole lifting device, pump or other Equivalent Circulating Density (ECD) tool. The foam F may be a foamed cement. The homogenous foam flow regime may be maintained by altering foam quality, foam viscosity or foam shear strength.
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公开(公告)号：GB2403242B
公开(公告)日：2006-09-13
申请号：GB0419474
申请日：2003-02-07
Applicant: WEATHERFORD LAMB
Inventor： HAUGEN DAVID M , ROBERTS JOHN DOUGLAS
Abstract: The present invention discloses and claims a system for forming an opening, or window, in a downhole tubular for the subsequent formation of a lateral wellbore. In the system of the present invention, an apparatus is run into the parent wellbore which includes at least a tubular having a drill bit, a diverter such as a whipstock releasably connected to the drill bit, an anchoring device such as a packer, and a milling device. This apparatus allows for the milling of a window in the parent wellbore, and the drilling of a lateral wellbore through that window, in a single trip.
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公开(公告)号：CA2373152C
公开(公告)日：2006-08-08
申请号：CA2373152
申请日：2000-05-04
Applicant: WEATHERFORD LAMB
Inventor： BINGHAM BRIAN , MIDDLETON FRANK ALEXANDER , DUGUID DAVID , LONGBOTTOM JAMES , ROBERTS JOHN D , HAUGEN DAVID M , DAWSON ALEX , HORST TODD
Abstract: Methods are disclosed for wellbore operations in an earth wellbore with tubi ng within casing in an earth wellbore, the wellbore extending down into earth from an earth surface, the tubing including a tubing string with a lower end and extending down within the casing with the lower end at a point above a lower end of the casing, a tubing-casing annulus between the tubing and the casing sealed by a first sealing apparatus, the method including sealing the lower end of the tubing string with a sealing device to prevent fluid flow therethrough, and sealing the tubing casing annulus with a second sealing apparatus above and spaced apart from the first sealing apparatus. In certai n aspects the sealing apparatuses provide upper and lower spaced-apart primary barriers. The methods in additional aspects include making an exit opening through the tubing and an exit opening through the casing, each exit opening located between the first sealing apparatus and the second sealing apparatus . In other aspects the methods include drilling a lateral wellbore from the ex it opening through the casing. Apparatus is disclosed that is useful in such methods.
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公开(公告)号：GB2415724A
公开(公告)日：2006-01-04
申请号：GB0518159
申请日：2004-03-05
Applicant: WEATHERFORD LAMB
Inventor： CARTER THURMAN B , BRUNNERT DAVID J , HAUGEN DAVID M
Abstract: Embodiments of the present invention generally provide methods and apparatus for forming a tubular-lined wellbore which does not decrease in diameter with 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 tubular 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.
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Patent Agency Ranking
公开(公告)号：GB2415723A
公开(公告)日：2006-01-04
申请号：GB0518157
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
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 (50), top drive adapter (40), 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 (100) includes a gripping member for engaging a tubular and a conveying member for positioning the gripping member (150). A spinner may be provided to rotate the tubular.
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公开(公告)号：GB2414502A
公开(公告)日：2005-11-30
申请号：GB0518158
申请日：2004-02-27
Applicant: WEATHERFORD LAMB
Inventor： MCKAY DAVID , HAUGEN DAVID M
Abstract: A method and apparatus for a drilling with casing includes therewith a drill shoe (10) configured for later drilling through thereof in situ, with cutters retainable thereon in response to the forces encountered during borehole drilling, yet moveable from the envelope through which the later drill shoe will pass when cutting through the in situ drill shoe (10). The drill shoe (10) includes one or more profiles thereon, into which blades (26) carrying the formation drilling cutters are disposed. The profiles include at least one projection thereon, which is received within a mating slot in the blades. The blades (26) also may be configured to have opposed sections which are configured with respect to one another to have an included angle (136) of less than ninety degrees.
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公开(公告)号：CA2533134A1
公开(公告)日：2005-08-04
申请号：CA2533134
申请日：2005-01-18
Applicant: WEATHERFORD LAMB
Inventor： HAYES MICHAEL , HAUGEN DAVID M , HILL TROY F , HOLLINGSWORTH JIMMY L , BEDORE TIMOTHY
Abstract: The inventions relates to an apparatus for connecting a control line to a tubular string. In one embodiment, the apparatus includes a guide boom pivotable around a location adjacent the string and with a guide member at a n end thereof to guide the control line. The apparatus further includes a clam p boom that is independently pivotable and includes a clamp housing at an end thereof for clamping the control line against the tubular string. The guide boom and the clamp boom each have a center line which is substantially align ed with the center line of the tubing string permitting the control line to be aligned adjacent the tubular string prior to clamping.
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公开(公告)号：GB2405428A
公开(公告)日：2005-03-02
申请号：GB0426073
申请日：2003-05-29
Applicant: WEATHERFORD LAMB
Inventor： GIROUX RICHARD , HAUGEN DAVID M , HOSIE DAVID
Abstract: An apparatus (100) for reducing pressure surges in a wellbore comprising a body having a bore (124) therethrough, the bore providing a fluid path for wellbore fluid between a first and second end of the body, at least one fluid path (122) 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 (110) whereby the at least one fluid path is selectively closable to the flow of fluid.
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公开(公告)号：GB2401131A
公开(公告)日：2004-11-03
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
Abstract: The invention provides a method and apparatus for running a deformed tubular body 710 into a wellbore, reforming the tubular body 710, and further expanding at least a part of that tubular body. In one aspect, the invention provides a method for forming a monobore well involving running a deformed or folded tubular body below a restriction in the wellbore, reforming the tubular 710 and further expanding a portion of the tubular 795 past its elastic limit. The portion of the tubular expanded past its elastic limit may be the lower portion of the tubular body 795 allowing each subsequent tubing section to be coupled to the corresponding end portion of an adjacent tubing section. Also disclosed is a two stage expansion tool 400.
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