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公开(公告)号：NO329516B1
公开(公告)日：2010-11-01
申请号：NO20024090
申请日：2002-08-28
Applicant: WEATHERFORD LAMB
Inventor： LUKE MIKE A , HOFFMAN COREY E , NORRIS STEPHEN J , GIROUX RICHARD LEE
Abstract: The present invention provides a simple debris removal apparatus (200) for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi (210) is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container (225). In another aspect of the invention, a venturi is utilised to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilising the apparatus in a wellbore on coiled tubing.
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公开(公告)号：AU2007200592B2
公开(公告)日：2009-04-23
申请号：AU2007200592
申请日：2007-02-12
Applicant: WEATHERFORD LAMB
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公开(公告)号：GB2451784A
公开(公告)日：2009-02-11
申请号：GB0820722
申请日：2007-05-11
Applicant: WEATHERFORD LAMB
Inventor： GIROUX RICHARD LEE , ROSENBERG STEVEN M
Abstract: Apparatus and methods are provided for a cementing operation for use with a drilling with casing application. In one embodiment, an apparatus is provided for stage cementing using a full opening stage tool. In another embodiment, an apparatus is provided for reverse cementing of the casing.
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公开(公告)号：GB2428722B
公开(公告)日：2007-09-26
申请号：GB0621250
申请日：2004-02-09
Applicant: WEATHERFORD LAMB
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公开(公告)号：AU2007200592A1
公开(公告)日：2007-03-01
申请号：AU2007200592
申请日：2007-02-12
Applicant: WEATHERFORD LAMB
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Patent Agency Ranking
公开(公告)号：CA2555563A1
公开(公告)日：2007-02-05
申请号：CA2555563
申请日：2006-08-04
Applicant: WEATHERFORD LAMB
Inventor： GIROUX RICHARD LEE , RING LEV
Abstract: Methods and apparatus are provided for performing an expedited shoe tes t using an expandable casing portion as an annular fluid barrier. Further provided are methods and apparatus for successfully recovering from a failed expansion so that a shoe test can be completed without replacement of the expandable casing portion. In one recovery method, a selectively actuatable fluid circulation tool is provided to further expand the expandable portion or perform a cementing operation. Additionally, methods and apparatus are provided to drill a wellbore and form an annular fluid barrier in a single trip.
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公开(公告)号：CA2322431C
公开(公告)日：2005-11-15
申请号：CA2322431
申请日：1998-12-17
Applicant: WEATHERFORD LAMB , LUCAS BRIAN RONALD
Inventor： GIROUX RICHARD LEE
Abstract: A method for cementing casing into a wellbore, which method comprises the steps of: (a) providing float equipment into said casing at or adjacent the downstream extremity thereof; (b) inserting a bottom plug into said casing and pumping it down said casing with cement; and (c) inserting a top plug into said casing above said cement and pumping it down said casing, characterised by (d) providing a plug seat upstream of said float equipment, said bottom plug being shaped and configured so that it will pass said plug seat and land on said float equipment and said top plug being shaped and configured so that it will land on said plug seat.
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公开(公告)号：DE69631389D1
公开(公告)日：2004-02-26
申请号：DE69631389
申请日：1996-04-26
Applicant: WEATHERFORD LAMB
Inventor： BUDDE PETER , GIROUX RICHARD LEE
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公开(公告)号：NO20063296L
公开(公告)日：2002-10-09
申请号：NO20063296
申请日：2006-07-17
Applicant: WEATHERFORD LAMB
IPC: E21B21/10 , E21B27/00 , E21B33/14 , E21B33/16 , E21B34/00 , E21B37/00 , E21B37/10 , E21B43/08 , E21B43/10
Abstract: The present invention provides a downhole cementing apparatus (100) run into a borehole on a tubular. The apparatus is constructed on the pipe (110) in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilise the fluid pathway of the cement. In one aspect of the invention, an inner member (135) is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing, and to cause a separation of materials in the borehole by running in a tubular string.
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公开(公告)号：AU3763901A
公开(公告)日：2001-09-24
申请号：AU3763901
申请日：2001-03-12
Applicant: WEATHERFORD LAMB
Inventor： PEDERSEN GERALD DEAN , GIROUX RICHARD LEE , HAUGEN DAVID MICHAEL , SCOTT THAD JOSEPH
IPC: E21B21/10 , E21B27/00 , E21B33/14 , E21B33/16 , E21B34/00 , E21B37/00 , E21B37/10 , E21B43/08 , E21B43/10
Abstract: The present invention provides a downhole cementing apparatus (100) run into a borehole on a tubular. The apparatus is constructed on the pipe (110) in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilise the fluid pathway of the cement. In one aspect of the invention, an inner member (135) is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing, and to cause a separation of materials in the borehole by running in a tubular string.
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