公开(公告)号：CA2453729C

公开(公告)日：2006-09-05

申请号：CA2453729

申请日：2003-12-18

Applicant: WEATHERFORD LAMB

Inventor： CUFFE CHRISTOPHER ,  WHANGER KEN ,  PLUCHECK CLAYTON ,  MAGUIRE PATRICK G ,  VICIC JOHN

IPC: E21B33/12 ,  E21B33/14 ,  E21B43/10

Abstract: The present invention generally relates to an apparatus for sealing a wellbore. The sealing apparatus includes an expandable tubular body having o ne or more sealing elements disposed thereon. In one aspect, the sealing elements include swelling and non-swelling sealing elements. Preferably, the swelling sealing elements are made of a swelling elastomer capable of swelling upon activatio n by an activating agent. The swelling elements may be covered with a protective lay er during the run-in. When the tubular body is expanded, the protective layer breaks, thereby exposing the swelling elements to the activating agent. In turn, the swelling elements swell and contact the wellbore to form a fluid tight seal.

公开(公告)号：GB2401890B

公开(公告)日：2006-12-20

申请号：GB0411127

申请日：2004-05-19

Applicant: WEATHERFORD LAMB

Inventor： WHANGER KEN ,  HARRALL SIMON JOHN ,  CUFFE CHRISTOPHER ,  BADRAK ROBERT

IPC: E21B43/10 ,  E21B23/01 ,  E21B33/127

公开(公告)号：GB2390385B

公开(公告)日：2005-01-12

申请号：GB0319265

申请日：2002-02-01

Applicant: WEATHERFORD LAMB

Inventor： GUILLORY BRETT ,  BETIK MIKE ,  WHANGER KEN ,  CUFFE CHRISTOPHER ,  DION MIKE

IPC: E21B21/10 ,  E21B23/02 ,  E21B23/06 ,  E21B33/127 ,  E21B34/10 ,  E21B33/128 ,  E21B33/129 ,  E21B33/1295

Abstract: The present invention relates to packers adapted to seal an annular space within a wellbore. The packers, for example, may be utilized to circulate or reverse circulate a fluid. In one embodiment, the present apparatus comprises a first tubular subunit and a second tubular subunit moveably coupled together, a flexible packing element disposed between the first tubular subunit and the second tubular subunit, and a temporary mechanical connection adapted to restrain the first tubular subunit and the second tubular subunit from compressing the flexible packing element, in which the temporary mechanical connection is adapted to be hydraulically disengaged. In another embodiment, the present apparatus further comprises a valve. The valve may be selectively opened to allow fluid to flow between the annular space and the central bore of the valve.

公开(公告)号：GB2396635B

公开(公告)日：2006-03-01

申请号：GB0329659

申请日：2003-12-22

Applicant: WEATHERFORD LAMB

Inventor： WHANGER KEN ,  VICIC JOHN C ,  CUFFE CHRISTOPHER ,  PLUCHECK CLAYTON ,  MAGUIRE PATRICK G

IPC: E21B43/10 ,  E21B33/12 ,  E21B33/14

Abstract: The present invention generally relates to an apparatus for sealing a wellbore. The sealing apparatus includes an expandable tubular body having one or more sealing elements disposed thereon. In one aspect, the sealing elements include swelling and non-swelling sealing elements. Preferably, the swelling sealing elements are made of a swelling elastomer capable of swelling upon activation by an activating agent. The swelling elements may be covered with a protective layer during the run-in. When the tubular body is expanded, the protective layer breaks, thereby exposing the swelling elements to the activating agent. In turn, the swelling elements swell and contact the wellbore to form a fluid tight seal.

公开(公告)号：CA2467571A1

公开(公告)日：2004-11-20

申请号：CA2467571

申请日：2004-05-19

Applicant: WEATHERFORD LAMB

Inventor： WHANGER KEN ,  HARRALL SIMON ,  BADRAK ROBERT ,  CUFFE CHRISTOPHER

IPC: E21B23/01 ,  E21B33/127 ,  E21B43/10 ,  E21B33/12

Abstract: The present invention relates to a method and apparatus for anchoring a n expandable tubular within a wellbore prior to expanding the length of the expandable tubular into contact with the wellbore. An expandable system comprises the expandable tubular and a deployment toot, wherein the deployme nt tool exerts radial force against the expandable tubular to expand at least a portion of the expandable tubular into contact with the wellbore to anchor the expandab le tubular prior to the expansion process. A method for anchoring an expandable tubular within a wellbore prior to the expansion process is also provided, wherein radial force expands the expandable tubular into contact with the wellbore t o initially anchor the expandable tubular. A method for altering the shape of the anchor is also provided.

公开(公告)号：CA2467571C

公开(公告)日：2012-05-01

申请号：CA2467571

申请日：2004-05-19

Applicant: WEATHERFORD LAMB

Inventor： WHANGER KEN ,  HARRALL SIMON ,  CUFFE CHRISTOPHER ,  BADRAK ROBERT

IPC: E21B33/12 ,  E21B23/01 ,  E21B33/127 ,  E21B43/10

Abstract: The present invention relates to a method and apparatus for anchoring an expandable tubular within a wellbore prior to expanding the length of the expandable tubular into contact with the wellbore. An expandable system comprises the expandable tubular and a deployment toot, wherein the deployment tool exerts radial force against the expandable tubular to expand at least a portion of the expandable tubular into contact with the wellbore to anchor the expandable tubular prior to the expansion process. A method for anchoring an expandable tubular within a wellbore prior to the expansion process is also provided, wherein radial force expands the expandable tubular into contact with the wellbore to initially anchor the expandable tubular. A method for altering the shape of the anchor is also provided.

公开(公告)号：GB2401890A

公开(公告)日：2004-11-24

申请号：GB0411127

申请日：2004-05-19

Applicant: WEATHERFORD LAMB

Inventor： WHANGER KEN ,  HARRALL SIMON JOHN ,  CUFFE CHRISTOPHER ,  BADRAK ROBERT

IPC: E21B23/01 ,  E21B33/127 ,  E21B43/10

Abstract: A method and apparatus for anchoring an expandable tubular (105) in a wellbore prior to expanding the length of expandable tubular (105) into contact with the wellbore involves the use of a deployment tool (150). The deployment tool (150) exerts a radial force against the expandable tubular (105) by use of an inflatable packer (25) thereby anchoring the tubular (105) prior to commencement of the expansion process.

公开(公告)号：GB2396635A

公开(公告)日：2004-06-30

申请号：GB0329659

申请日：2003-12-22

Applicant: WEATHERFORD LAMB

Inventor： WHANGER KEN ,  VICIC JOHN C ,  CUFFE CHRISTOPHER ,  PLUCHECK CLAYTON ,  MAGUIRE PATRICK G

IPC: E21B33/12 ,  E21B33/14 ,  E21B43/10

Abstract: The sealing apparatus 110 includes an expandable tubular body 105 having one or more sealing elements disposed thereon. The sealing elements include swelling 140 and non-swelling 150 sealing elements. The swelling sealing elements are made of a swelling elastomer capable of swelling upon activation by an activating agent. The swelling elements may be covered with a protective layer 145 during the run-in. When the tubular body is expanded, the protective layer breaks, thereby exposing the swelling elements to the activating agent. In turn, the swelling elements swell and contact the wellbore to form a fluid tight seal. The non-swelling elements contain the swelling elements to a defined area.

公开(公告)号：CA2453729A1

公开(公告)日：2004-06-23

申请号：CA2453729

申请日：2003-12-18

Applicant: WEATHERFORD LAMB

Inventor： MAGUIRE PATRICK G ,  PLUCHECK CLAYTON ,  CUFFE CHRISTOPHER ,  VICIC JOHN ,  WHANGER KEN

IPC: E21B33/12 ,  E21B33/14 ,  E21B43/10

Abstract: The present invention generally relates to an apparatus for sealing a wellbore. The sealing apparatus includes an expandable tubular body having o ne or more sealing elements disposed thereon. In one aspect, the sealing elements include swelling and non-swelling sealing elements. Preferably, the swelling sealing elements are made of a swelling elastomer capable of swelling upon activatio n by an activating agent. The swelling elements may be covered with a protective lay er during the run-in. When the tubular body is expanded, the protective layer breaks, thereby exposing the swelling elements to the activating agent. In turn, the swelling elements swell and contact the wellbore to form a fluid tight seal.