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公开(公告)号：WO2014022417A2
公开(公告)日：2014-02-06
申请号：PCT/US2013052759
申请日：2013-07-30
Applicant: WEATHERFORD LAMB
Inventor： DELANGE RICHARD W , SETTERBERG JR JOHN RICHARD , OSBURN SCOTT H , HASHEM GHAZI J , GALLOWAY GREGORY GUY
CPC classification number: E21B23/00 , E21B23/01 , E21B29/10 , E21B43/103
Abstract: An expandable liner is used to re-complete a wellbore for a re-fracturing operation. The expandable liner may be used to cover the old perforations and provide a larger bore after expansion. The larger bore allows the new completion perforations and fracturing operation to be more easily achieved. In one embodiment, the expandable liner may have a rib disposed around an outer diameter of the expandable tubular, wherein the rib is configured to form a seal with the outer tubular.
Abstract translation: 可再膨胀衬套用于重新完井以进行再压裂作业。 可膨胀衬套可用于覆盖旧的穿孔，并且在膨胀之后提供较大的孔。 较大的孔允许更容易地实现新的完井穿孔和压裂操作。 在一个实施例中，可膨胀衬套可以具有围绕可膨胀管的外径布置的肋，其中肋构造成与外管形成密封。
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公开(公告)号：CA2791599A1
公开(公告)日：2013-04-21
申请号：CA2791599
申请日：2012-10-03
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , BRUNNERT DAVID , KOCHERA JOHN W , MITCHELL MARK , FRILOT MELISSA A , REDLINGER THOMAS M
Abstract: The present invention describes a drill pipe in which various sections of the pipe are strengthened, or their shape is altered, in order to improve the wear and buckle resistance of the drill pipe. The sections are strengthened using various hardening methods such as heat treatment processes and/or expansion techniques. A sleeve can also be applied to the strengthened portions. Surface enhancers, such as hardbanding, can be applied to the strengthened portions or the sleeve in order to provide abrasion resistance or to reduce friction. The present invention embodies a drill pipe in which various damaged sections of the pipe are repaired in order to maintain or improve the wear and buckle resistance of the drill pipe. The sections are strengthened using various hardening methods such as heat treatment processes and/or expansion techniques. A sleeve can also be applied to the strengthened portions. Surface enhancers, such as hardbanding, can be applied to the strengthened portions or the sleeve in order to provide abrasion resistance or to reduce friction.
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公开(公告)号：GB2449804B
公开(公告)日：2009-05-06
申请号：GB0816234
申请日：2006-08-07
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON JOHN , RING LEV M , EVANS MERLE EDWARD
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：GB2415974B
公开(公告)日：2009-04-08
申请号：GB0511043
申请日：2005-06-01
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , RING LEV M , SETTERBERG JOHN R JR
IPC: E21B17/042 , E21B43/10 , F16L15/06
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公开(公告)号：GB2449805A
公开(公告)日：2008-12-03
申请号：GB0816235
申请日：2006-08-07
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , HARRALL SIMON JOHN , RING LEV M , EVANS MERLE EDWARD
Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin 10 and box 20 members. The invention utilizes a "groove" 90 in a surface of the box member and a corresponding "rib" 82 on the pin nose. The rib includes an angled wall 84 which mates with an angled wall 92 of the groove. On radial expansion of the tubulars these angled walls are in contact with each other and prevent the pin nose 80 being forced inwardly.
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Patent Agency Ranking
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：GB2415974A
公开(公告)日：2006-01-11
申请号：GB0511043
申请日：2005-06-01
Applicant: WEATHERFORD LAMB
Inventor： HASHEM GHAZI J , RING LEV M , SETTERBERG JOHN R JR
IPC: E21B17/042 , E21B43/10 , F16L15/06
Abstract: The disclosed expandable hybrid threaded connection between segments of expandable tubulars allows the threaded tubular connection to withstand the stresses and deformations imposed on the connection by the tubular expansion process. The connection comprises at least two threaded segments, the first being a standard box 20 and pin 10 arrangement where the threads 14 on the pin 10 fully engage the mating threads 22 on the box 20 member, and the second segment has material removed from the stab flank of the pin threads 12 to reduce their width thus allowing a loose fit between the pin threads 12 and the second segment of the box threads. As the connection is expanded the loose fit between the threads of the second segment allows radial and axial movement between the threads without causing disengagement of the threaded connection while the threads of the first segment maintain the coupling strength and pressure integrity of the connection. Further disclosed are a sealing ring 35 in a groove within the first segment and a protective sleeve 55 on the external shoulder of the pin 10 member.
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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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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：GB2435062B
公开(公告)日：2011-06-15
申请号：GB0702526
申请日：2007-02-09
Applicant: WEATHERFORD LAMB
Inventor： EVANS MERLE EDWARD , HASHEM GHAZI J , SETTERBERG JOHN RICHARD JR , BADRAK ROBERT , MAGUIRE PATRICK G
Abstract: A tubular configured to mate with a second tubular so that sealing integrity is maintained between the tubulars before, during, and after expansion of the tubulars is disclosed. In one embodiment, a connector for connecting tubulars is provided. The connector includes a pin portion; a box portion, wherein the pin and the box portions are configured to mate; a sealing surface formed in an inner surface of the box portion; a seal disposed in a groove formed in an outer surface of the pin portion, wherein the seal is configured to engage with a sealing surface of the box portion upon mating of the pin and the box portions; and a bump formed on an inner surface of the pin portion, wherein the bump is substantially radially aligned with the groove and the bump is configured so that the seal remains engaged with the box portion during and after expansion of the pin and the box portions.
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