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51. 发明专利

CA2427453C HYDRAULIC RUNNING TOOL WITH TORQUE DAMPENER 未知
公开(公告)号：CA2427453C
公开(公告)日：2008-05-06
申请号：CA2427453
申请日：2001-12-04
申请人： WEATHERFORD LAMB
发明人： GUDMESTAD TARALD , MURRAY MARK , MAGUIRE PATRICK G , DUFF RICHARD
IPC分类号： E21B23/00 , E21B17/06 , E21B43/10
摘要： The present invention generally provides a running tool (100) comprising a torque-dampening system. A first portion (116) and a second portion (118) of the running tool are operably related by a torsion interface (128). In one embodiment, the torsion interface includes a plurality of interlaced teeth (130A,130B) disposed on the each of the first and second portions. During relative rotation of the first and second portions, the teeth engage and "ri de up" on one another, thereby forcing the first and second portions in opposit e axial directions. At least one of the portions houses a flow restrictor assembly (264) adapted to restrict fluid flow from one region to another during the axial movement of the portions. Accordingly, the relative rotatio n between the portions is inhibited, or dampened.

52. 发明专利

CA2586327A1 TEMPORARY WELL ZONE ISOLATION 未知
公开(公告)号：CA2586327A1
公开(公告)日：2007-10-28
申请号：CA2586327
申请日：2007-04-26
申请人： WEATHERFORD LAMB
发明人： GUDMESTAD TARALD , BAUSTAD TERJE , GRAMSTAD BERNT
IPC分类号： E21B33/12
摘要： Disclosed herein is a temporary well isolation device, which is sealingly disposable in downhole tubing, and which has a housing with an axial passage . The temporary well isolation device also has frangible barrier element withi n the housing, where the frangible barrier element is sealingly engaged in the passage blocking fluid flow through the passage. The frangible barrier element bears a load from fluid pressure. The temporary well isolation device also has a disengagable constraint in contact with a frangible barrier element so as to redirect the load on the frangible barrier element from a first component of the load to a second component of the load, thereby preventing rupture of the frangible barrier element. Also disclosed herein is a method for disintegrating a frangible barrier element disposed in a passage of a temporary well isolation device.

53. 发明专利

DE60114047T2 未知
公开(公告)号：DE60114047T2
公开(公告)日：2006-07-20
申请号：DE60114047
申请日：2001-12-04
申请人： WEATHERFORD LAMB
发明人： MAGUIRE G , DUFF RICHARD , GUDMESTAD TARALD , MURRAY MARK
IPC分类号： E21B23/00 , E21B17/06 , E21B43/10

54. 发明专利

GB2392965B Locking arrangement for a threaded connector 未知
公开(公告)号：GB2392965B
公开(公告)日：2005-03-23
申请号：GB0400469
申请日：2002-10-22
申请人： WEATHERFORD LAMB
发明人： PEDERSEN GERALD DEAN , HIRTH DAVID E , GUDMESTAD TARALD , MURRAY MARK J
IPC分类号： E21B17/043 , F16L15/08 , E21B17/046 , E21B19/16 , F16L15/00 , F16L21/08
摘要： A connector arrangement used for connecting and locking tubular members. The connector consists of two tubular members and a coupling member. The tubular members are threaded together to create a threaded connection. The locking arrangement is provided by a pathway formed on the tubular member whereby a locking member can be inserted in to the pathway to lock the threaded connection. The locking arrangement is also provided by a plurality of castellation members disposed on each tubular member. The connector also has a separate coupling member which has opposite right-hand and left-hand threaded ends to threadedly mate with the threads of the two tubular members.

55. 发明专利

GB2401621A Expandable packer with elastomeric and non-elastomeric sealing elements 未知
公开(公告)号：GB2401621A
公开(公告)日：2004-11-17
申请号：GB0410879
申请日：2004-05-14
申请人： WEATHERFORD LAMB
发明人： HIRTH DAVID E , GUDMESTAD TARALD
IPC分类号： E21B33/12 , E21B33/128
摘要： An expandable packer 318 comprises elastomeric 346A, B and non-elastomeric (preferably a metallic component) 344A, B, C sealing elements. The expandable packer 318 is constructed from a non-eleastomeric tubular body 340 having a frustoconical shaped inner surface 352A for contacting a wedge 308; a hollow mid section forming voids / cavities 358A, B; and a smooth outer surface 342 for carrying the elastomeric seals 346A, B. Upon activation, the wedge 308 expands the packer 318 and causing it to contact a casing 106. The expansion process forces the voids / cavities 358A, B to collapse to allow elastomeric seals 346A, B to sit within the tubular body 340 so that both the elastomeric 346A, B and non-elastomeric 344A, B, C sealing elements contact the casing 106.

56. 发明专利

NO20141195A1 Tetning med metalltettende element 未知
公开(公告)号：NO20141195A1
公开(公告)日：2004-11-16
申请号：NO20141195
申请日：2014-10-07
申请人： WEATHERFORD LAMB
发明人： HIRTH DAVID E , GUDMESTAD TARALD
IPC分类号： E21B33/124 , E21B33/12
摘要： Oppfinnelsen vedrører en tetningsring for tetning av et ringformet område i et brønnhull, som omfatter en indre tetningsoverflate som har minst to innover radialt utvidende ribber som danner en kavitet derimellom; og en ytre tetningsoverflate som inkluderer minst ett hevet elastomerisk forseglingselement, idet elementet er anordnet på den ytre tetningsoverflaten motsatt av kaviteten hvorved, når forseglingselementet er sammentrykket, den ytre overflaten er deformert i området av forseglingselementet ved kaviteten. Oppfinnelsen vedrører også en tetning for en tetningsoperasjon for et brønnhull, som omfatter en rørformet kropp som har en ytre overflate, langs minst en del av den rørformede kroppen, som er hovedsakelig glatt og sylindrisk i en ikke-herdet posisjon av tetningen; og et elastomerisk forseglingselement anordnet på den ytre overflaten. Oppfinnelsen vedrører videre en tetningssammenstilling for anvendelse i en tetningsoperasjon for et brønnhull, og en fremgangsmåte for dannelse av et segl i et borehull.

57. 发明专利

DE69719811T2 未知
公开(公告)号：DE69719811T2
公开(公告)日：2004-01-22
申请号：DE69719811
申请日：1997-12-08
申请人： WEATHERFORD LAMB
发明人： GUDMESTAD TARALD , SALTE JONE
IPC分类号： E21B33/05
摘要： An apparatus for launching at least one plug into a tubular in a wellbore, in certain aspects, the apparatus having a hollow upper section with at least first and second upper ports one above the other, a landing seat, and a first fluid displaceable member below the second upper port, the hollow lower section adapted to retain a plug and having a first lower port and a landing collar for the fluid displaceable member.

58. 发明专利

DE69808121T2 未知
公开(公告)号：DE69808121T2
公开(公告)日：2003-05-15
申请号：DE69808121
申请日：1998-11-04
申请人： WEATHERFORD LAMB
发明人： GUDMESTAD TARALD , TILTON THOMAS
IPC分类号： E21B33/05 , E21B33/16
摘要： An apparatus for launching at least two plugs, said apparatus comprising a mandrel (2), a lower plug (22) and an upper plug (21) releasably disposed with respect to said mandrel (2), wherein said upper plug (21) comprises a body (23) having a flow path (24) therethrough and a cap (25) for blocking fluid flow through said flow path (24) characterized in that said cap (25) is detachable from said body (23) in use if the upper plug (21) is prematurely ejected.

59. 发明专利

NO20032022D0 未知
公开(公告)号：NO20032022D0
公开(公告)日：2003-05-06
申请号：NO20032022
申请日：2003-05-06
申请人： WEATHERFORD LAMB
发明人： MAGUIRE PATRICK G , DUFF RICHARD , GUDMESTAD TARALD , MURRAY MARK
IPC分类号： E21B17/06 , E21B23/00 , E21B43/10 , E21B

60. 发明专利

NO313392B1 未知
公开(公告)号：NO313392B1
公开(公告)日：2002-09-23
申请号：NO981994
申请日：1998-05-04
申请人： WEATHERFORD LAMB
发明人： GUDMESTAD TARALD
IPC分类号： E21B33/16
摘要： PCT No. PCT/GB96/03006 Sec. 371 Date May 21, 1998 Sec. 102(e) Date May 21, 1998 PCT Filed Dec. 6, 1996 PCT Pub. No. WO97/21019 PCT Pub. Date Jun. 12, 1997A plug launching device for use in cementing operations in the construction of oil and gas wells, the device having, in certain embodiments, a tubular member with an upper section and a lower section which can accommodate at least a bottom plug and a top plug, the upper section having a floor and the lower section movable relative to the upper section so that when a first dart is pumped into the upper section by cement, the cement is diverted to raise the lower section to release the bottom plug, and when a second dart is pumped into the upper section by hydraulic fluid, it lands on the first dart and the hydraulic fluid is diverted to raise the lower section to further release the top plug.

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