公开(公告)号：US4971101A

公开(公告)日：1990-11-20

申请号：US620800

申请日：1984-08-20

申请人： James R. Becker ,  Edward L. Raymond ,  David W. Cameron

发明人： James R. Becker ,  Edward L. Raymond ,  David W. Cameron

IPC分类号： B22F7/08

CPC分类号： B22F7/08 ,  Y10T137/7036 ,  Y10T29/49421

摘要： A structure having a metal body with a plurality of intersecting cavities and a consolidated corrosion resistant powdered metal lining and metallurgically engaging the walls of the intersecting cavities.

摘要翻译： 一种具有金属体的结构，该金属体具有多个相交腔，并具有固结的耐腐蚀粉末金属衬里，并且与相交腔的壁冶金接合。

公开(公告)号：US4969627A

公开(公告)日：1990-11-13

申请号：US923592

申请日：1986-10-27

申请人： Charles C. Williams, III

发明人： Charles C. Williams, III

IPC分类号： F16B1/02 ,  E21B29/08 ,  E21B33/06

CPC分类号： E21B33/062

摘要： The improved blowout preventer ram tail rod locking device of the present invention includes a housing, a body movable in the housing, having a threaded rod and coacting with the outer end of the ram tail rod to lock it in the ram closed position, a nut rotatably mounted within said housing, having ractchet teeth and engaging the threads onthe threaded rod, a braking piston slidably mounted within said housing and having ratchet teeth engaging withthe ratchet teeth of the nut, the ratchet teeth on said nut and piston allowing freedom of rotation of the nut during movement of the body into engagement with the ram tail road and preventing rotation of the nut in the opposite direction, and menas for exerting pressure on said braking piston to disengage the racthet teeth during retracting movement of the wedge.

摘要翻译： 本发明的改进的防喷器柱塞尾杆锁定装置包括壳体，可在壳体中移动的主体，具有螺纹杆并与柱塞尾杆的外端共同作用以将其锁定在柱塞关闭位置，螺母 可旋转地安装在所述壳体内，具有棘轮齿并啮合螺杆上的螺纹;制动活塞，其可滑动地安装在所述壳体内，并且具有与所述螺母的棘齿啮合的棘轮齿，所述螺母上的棘齿和活塞允许自由旋转 所述螺母在所述主体运动期间与所述柱塞尾道接合并且防止所述螺母沿相反方向旋转，以及在所述楔形件回缩运动期间在所述制动活塞上施加压力以脱开所述拉动齿的操作的手段。

公开(公告)号：US4869615A

公开(公告)日：1989-09-26

申请号：US172191

申请日：1988-03-23

申请人： Gary L. Galle

发明人： Gary L. Galle

IPC分类号： B63B21/50

CPC分类号： B63B21/502 ,  Y10T403/16 ,  Y10T403/59

摘要： An improved tension leg joint with a first or receptacle member having an opening to receive the second or tension leg member end, the first member opening includes an internal recess including an upper downwardly facing shoulder and a lower shoulder, the second member end includes a latching element carried on a lower upwardly facing shoulder of the second member and normally biased outward so that it moves into the internal recess of the first member when the second member end is inserted therein sufficiently far so that the latching element moves past the downwardly facing shoulder, and a release sleeve movable within the first member recess and having means for releasably engaging the latching element when it is moved into the interior of the release sleeve subsequent lifting of the second member and its latching element causes the release sleeve to be raised to engage the downwardly facing recess shoulder and allow the latching element to pass thereby in its upward movement without coming into latching engagement therewith.

公开(公告)号：USRE33053E

公开(公告)日：1989-09-12

申请号：US194547

申请日：1988-05-16

申请人： Fritz O. Seger

发明人： Fritz O. Seger

IPC分类号： F16K47/04

CPC分类号： F16K47/04 ,  Y10T137/86734

摘要： A low-noise valve has a body with a fluid inlet to receive pressurized fluid, an oulet and a fluid passageway extending between the inlet and outlet. Located in the passageway are a number of spaced throats. The valve also includes a movable stem with a number of plugs each adapted to be closely received by a corresponding throat. Each plug includes a plurality of circumferential alternating grooves and lands, the lands being closely spaced within the throats to create a plurality of flow restrictions each incrementally restricting fluid flow when the stem is at a minimum flow position. Movement of the stem toward a full open position sequentially removes the lands from the throat to reduce restriction of said fluid flow in stages.

公开(公告)号：US4862960A

公开(公告)日：1989-09-05

申请号：US244787

申请日：1988-09-15

申请人： Keith Garbett

发明人： Keith Garbett

IPC分类号： E21B33/03 ,  E21B47/10

CPC分类号： E21B33/03 ,  E21B47/1025

摘要： An improved well structure to be installed within a wellhead housing having an internal landing seat and an internal support groove above the landing seat, a hanger having an internal bore and an external landing shoulder with the hanger positioned within the housing so that the hanger landing shoulder lands on and transmits hanger loads to the housing landing seat and a blowout preventer secured to the upper end of the housing including a closure having a body which lands within the hanger bore and including an external downwardly facing load shoulder, a split support ring positioned below the shoulder and a sleeve coacting with the split support ring so that when said closure is exposed to blowout preventer testing pressures the sleeve wedges the support ring outwardly into tight supporting engagement with said internal housing groove so that testing pressure loads are transmitted from said body loading shoulder through said support ring to said housing.

公开(公告)号：US4854778A

公开(公告)日：1989-08-08

申请号：US93303

申请日：1987-09-04

申请人： Ernesto D. Valenzuela

发明人： Ernesto D. Valenzuela

IPC分类号： E21B15/00 ,  E02B17/00 ,  E02B17/02 ,  E21B33/037

CPC分类号： E02B17/027 ,  E02B17/021 ,  E21B33/037 ,  E02B2017/0047 ,  E02B2017/006 ,  E02B2017/0082

摘要： The present invention relates to an improved caisson structure which is adapted to support a production platform above the water and has its base on bottom and has a foot print or base which will pass through the drilling slot of a jackup rig. The caisson structure includes a large diameter caisson supported in a base structure including at least three base columns through which piling is placed and bracing extending between the columns and the caisson, a platform supported at the upper end of the caisson with production tubing and its casing extending upward through the caisson, and where desired, filled with concrete surrounding the casing within the caisson. The improved caisson structure can be used to surround and support an existing conductor pipe extending from a subsea wellhead to the surface or to surround a wellhead at the surface and the conductor which extends to such wellhead from a subsea well bore. The improved method of setting the caisson structure includes lifting the structure from a barge and lowering to position its base in engagement with the sea bottom in the desired location, piling is placed in and set through the corner columns, the wells are drilled through the caisson, the production strings are set and the wellhead production equipment are installed on the productions strings at the platform. The piling is steel tubular members which can be cut below the sea bottom to recover the caisson structure after the wells are plugged. The caisson structure after retrieval can be reused in a different location merely by adapting its length to be suitable for the water depth in the new location.

公开(公告)号：US4832125A

公开(公告)日：1989-05-23

申请号：US044412

申请日：1987-04-30

申请人： William M. Taylor

发明人： William M. Taylor

IPC分类号： E21B33/00 ,  E21B33/043

CPC分类号： E21B33/043 ,  E21B2033/005

摘要： An improved subsea hanger and seal having a hanger body with an external landing shoulder and an upstanding sealing rim with external sealing teeth and multiple internal camming surfaces and an actuating ring which fits within the sealing rim and includes external multiple camming surfaces mating with the camming surfaces on the interior of the sealing rim to move said sealing rim into initial set position and allow subsequent pressure to be applied to the interior of the actuating ring to deform the sealing rim into positive gripping and sealing engagement with the interior of the subsea wellhead housing in which the hanger is landed.

公开(公告)号：US4827748A

公开(公告)日：1989-05-09

申请号：US217158

申请日：1988-07-11

申请人： Donald G. Herring

发明人： Donald G. Herring

IPC分类号： B21D39/20

CPC分类号： B21D39/203 ,  Y10T29/49805

摘要： A forming tool including a mandrel having nuts threaded on its exterior at both ends with an outer cylindrical surface between the nuts, a forming assembly positioned around said mandrel between said nuts, the forming assembly including a pair of end rings having inner lips extending axially along said outer cylindrical surface and an overhang with a re-entrant recess between the joining of the lip with the remainder of the end ring, a resilient sleeve having its ends bonded within said re-entrant recesses of said end rings and extending in surrounding relationship to said cylindrical mandrel surface, means surrounding each end of said sleeve adjacent said end rings to prevent extrusion of the material of said sleeve, seals for sealing between the exterior of said mandrel and the interior of said end ring lips, and means for supplying pressure to the interior of said sleeve to move it radially outward with sufficient force to form a member surrounding the tool outward.

摘要翻译： 一种成形工具，其包括具有在其两端的外部螺纹的螺母的心轴，其中螺母之间具有外圆柱形表面;成形组件，其围绕所述心轴定位在所述螺母之间，所述成形组件包括一对端环，其具有沿着轴向延伸的内唇 所述外圆柱形表面和在所述唇缘与所述端环的其余部分的接合之间具有凹入凹槽的突出部分，弹性套筒的端部结合在所述端环的所述重入凹槽内并以周围的关系延伸 所述圆柱形心轴表面围绕所述端环围绕所述套筒的每个端部的装置，以防止所述套筒的材料挤压，用于在所述心轴的外部与所述端环唇缘的内部之间进行密封的密封件，以及用于将压力提供给 所述套筒的内部以足够的力径向向外移动，以形成围绕该工具的构件向外。

公开(公告)号：US4817716A

公开(公告)日：1989-04-04

申请号：US44583

申请日：1987-04-30

申请人： William M. Taylor ,  Thomas G. Cassity

发明人： William M. Taylor ,  Thomas G. Cassity

IPC分类号： E21B31/18 ,  E21B17/02 ,  E21B23/04 ,  E21B29/10 ,  E21B29/12 ,  E21B43/10 ,  E21B47/16 ,  F16L55/16

CPC分类号： E21B43/103 ,  E21B17/02 ,  E21B29/10 ,  E21B29/12 ,  E21B43/106 ,  E21B47/091 ,  E21B47/16 ,  F16L55/1608

摘要： An improved repair connector for a subsea tubular member and the method of making such repair. The improved repair connector includes a annular housing and an annular guide, said annular housing having internal grooves filled with pressure compensating material, a concave recess having serrations therein, a rib having a downwardly facing shoulder on the interior of said housing, threads on the upper interior of said housing for receiving a string, and means carried by said guide for sealing against the exterior of a string on which the connector is to be installed. Also, a band of brittle material is positioned within a groove in the exterior of the housing which generates a noise upon the deformation of the housing responsive to completion of the forming of the tubular member therein. The method of connecting the improved connector includes the steps of preparing the casing at a level below the defect, lowering the improved connector into engagement with the upper end of the prepared casing within the well bore, exerting deforming pressure within the upper end of the casing to deform the casing into sealing engagement within the internal grooves in the connector, and releasing and recovering the means generating the deforming pressure.

公开(公告)号：US4770247A

公开(公告)日：1988-09-13

申请号：US47172

申请日：1987-05-07

申请人： Robert L. Wilkins

发明人： Robert L. Wilkins

IPC分类号： E21B43/01 ,  E21B17/01 ,  E21B23/12 ,  E21B33/038 ,  E21B33/076 ,  E21B7/12

CPC分类号： E21B33/038 ,  E21B17/01 ,  E21B23/002 ,  E21B33/076

摘要： An improved riser for a multiple bore subsea well providing wireline access to each of the bores through a single opening at the upper end of the riser and including an upper tubular member having a single bore, a tubular housing surrounding the lower portion of said upper tubular member, bearing means within said tubular housing for supporting rotation of said upper tubular member with respect to said tubular housing, a lower housing member having multiple bores which mate with the multiple bores of the tubing hanger running tool or the christmas tree running tool, said upper tubular member having an offset portion within said tubular housing which, when rotated can align with the opening of the upper end of the bores through said lower housing member, means securing the lower end of said tubular housing to said lower housing member, a skirt connected to said upper tubular member within said tubular housing and extending into sealing engagement with said lower housing member and being in surrounding relation to said offset portion of said upper tubular member, means for stopping the rotation of said upper tubular member in positions of alignment with the bores of said lower housing member, and means for providing an indication to the upper end of said upper tubular member of the position of the tubular member with respect to said lower housing bores.