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公开(公告)号：CA2757151A1
公开(公告)日：2007-02-11
申请号：CA2757151
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.
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公开(公告)号：CA2881342C
公开(公告)日：2016-08-02
申请号：CA2881342
申请日：2006-08-09
Applicant: WEATHERFORD/LAMB INC
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. A first tubular segment has a pin member and a second tubular segment has a box member. The pin member includes threads, a pin nose and a groove formed in the pin nose. The box member includes a rib and threads that engage with the pin member. The rib can rest within, and contact, a portion of the groove when the threaded connection is made up prior to expansion. The groove is sized to allow the rib to move within the groove, from a contact point at a first end of the groove to a second contact point at a second end of the groove, resulting from axial movement of the pin nose during radial expansion of the connection.
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公开(公告)号：CA2555709C
公开(公告)日：2012-10-02
申请号：CA2555709
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.
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公开(公告)号：CA2865078A1
公开(公告)日：2007-02-11
申请号：CA2865078
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, an axial gap is formed between the pin elements of the mating tubulars.
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公开(公告)号：CA2881130C
公开(公告)日：2016-08-30
申请号：CA2881130
申请日：2006-08-09
Applicant: WEATHERFORD/LAMB INC
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes first and second "grooves" in a surface of the box member and corresponding first and second "ribs" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, a high bearing pressure, metal-to-metal seal, is formed between elements of the mating tubulars.
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Patent Agency Ranking
公开(公告)号：CA2757151C
公开(公告)日：2015-06-30
申请号：CA2757151
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, an axial gap is formed between the pin elements of the mating tubulars.
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公开(公告)号：CA2881342A1
公开(公告)日：2007-02-11
申请号：CA2881342
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, an axial gap is formed between the pin elements of the mating tubulars.
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公开(公告)号：CA2881125A1
公开(公告)日：2007-02-11
申请号：CA2881125
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON J , RING LEV M , EVANS MERLE E
IPC: E21B17/042 , E21B17/08 , F16L15/08
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a "groove" in a surface of the box member and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, an axial gap is formed between the pin elements of the mating tubulars.
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公开(公告)号：CA2555709A1
公开(公告)日：2007-02-11
申请号：CA2555709
申请日：2006-08-09
Applicant: WEATHERFORD LAMB
Inventor： RING LEV M , EVANS MERLE E , HASHEM GHAZI J , HARRALL SIMON J
Abstract: An expandable threaded connection between segments of expandable tubulars th at provides a high bearing pressure seal at a specific area along the pin and b ox members is disclosed. The invention utilizes a "groove" in a surface of the box memb er and a corresponding "rib" on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from th e back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.
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公开(公告)号：CA2589610C
公开(公告)日：2011-11-22
申请号：CA2589610
申请日：2007-05-22
Applicant: WEATHERFORD LAMB
Inventor： EVANS MERLE E , SETTERBERG JOHN RICHARD JR , RING LEV , HASHEM GHAZI J , DELANGE RICHARD W
Abstract: The present invention generally relates to a method and apparatus for protecting tubular connections. In one aspect, an expandable tubular connection for use in a wellbore is provided. The tubular connection includes a tubular pin member. The tubular connection also includes a tubular box member having an end portion, wherein the tubular pin member is matable with the tubular box member to form the tubular connection. Additionally, the tubular connection includes a sleeve member disposed on the tubular pin member, wherein the sleeve member is configured to substantially protect the end portion of the tubular box member as the tubular connection is lowered into the wellbore. In yet a further aspect, a method for utilizing a tubular connection in a wellbore is provided.
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