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11. 发明专利

FR2708662A1 未知
公开(公告)号：FR2708662A1
公开(公告)日：1995-02-10
申请号：FR9409571
申请日：1994-08-02
申请人： HYDRIL CO
发明人： YOUNG KENNETH D , COLVIN KENNETH W , FREDERICK JOSEPH L
IPC分类号： E21B33/06 , E21B34/16 , G01B7/02 , G01B7/14

12. 发明专利

DE4427367A1 未知
公开(公告)号：DE4427367A1
公开(公告)日：1995-02-09
申请号：DE4427367
申请日：1994-08-02
申请人： HYDRIL CO
发明人： YOUNG KENNETH D , COLVIN KENNETH W , FREDERICK JOSEPH L
IPC分类号： E21B33/06 , E21B34/16 , G01B7/02 , E21B47/00
摘要： A ram of a ram-type blowout preventer is enclosed within an enclosure so that the piston 56 driving the ram is placed parallel to a stationary magnetizable waveguide tube 36. A transverse ring-like magnet assembly 64 surrounds the tube 36 and is attached to a carrier 54 that, in turn, is attached to the tail of the piston 56. The magnet assembly 64 longitudinally magnetizes an area of the tube where it is located. A wire running through the tube is periodically interrogated with an electrical current pulse, which produces a toroidal magnetic field about the wire. When the toroidal field intersects with the longitudinally magnetized area, a magnetostrictive acoustical return pulse is reflected back up the tube for detection by a transducer 32 located outside of the enclosure. The time that the acoustical pulse travels from the magnetic field intersection compared to the timing of the electrical pulse on the wire is a measure of distance since the pulse time essentially travels at the speed of light. Thus, the position of the ram is absolutely determined. From the position information from successive pulses, ram velocity and acceleration information can be developed. The measurements are continuous and absolute and are not incremental.

13. 发明专利

CA1256019A MECHANICAL DRIVE PACKER 未知
公开(公告)号：CA1256019A
公开(公告)日：1989-06-20
申请号：CA508133
申请日：1986-05-01
申请人： HYDRIL CO
发明人： BURTON JAMES A , COLVIN KENNETH W , KEITHAHN JULIAN D
IPC分类号： E21B23/06 , E21B20060101 , E21B33/06 , E21B33/128
摘要： An annular blowout preventer packer unit is disclosed having an annulus of elastomeric material in which is embedded metallic drive inserts provided in an outward circle about the axis. Metallic lead inserts are provided in an inward circle about the axis. The top and bottom plates of the drive inserts have two angled longitudinal forward surfaces which interface with reverse angled adjacent longitudinal rearward surfaces of the top and bottom plates of the lead inserts, respectively. When the BOP piston is closed, the drive inserts cause the lead inserts to advance inwardly a greater radial distance than the advance of the drive inserts. The result is that less stroke may be required to close the blowout preventer, and a controlled, predictable, uniform movement of the lead inserts is achieved. The drive inserts top plates are broad across their rearward longitudinal surface operably covering the area behind the lead inserts on closure of the packer unit. The shape of the drive inserts allows the lead inserts to be driven to a smaller diameter without opening up the back side and causing outer diameter elastomer loss to the unit.

14. 发明专利

NO865354L 未知
公开(公告)号：NO865354L
公开(公告)日：1987-02-27
申请号：NO865354
申请日：1986-12-30
申请人： HYDRIL CO
发明人： BURTON JAMES A , COLVIN KENNETH W , KEITHAHN JULIAN D
IPC分类号： E21B23/06 , E21B20060101 , E21B33/06 , E21B33/128 , E21B

15. 发明专利

NO865354A 未知
公开(公告)号：NO865354A
公开(公告)日：1987-02-27
申请号：NO865354
申请日：1986-12-30
申请人： HYDRIL CO
发明人： BURTON JAMES A , COLVIN KENNETH W , KEITHAHN JULIAN D
IPC分类号： E21B23/06 , E21B20060101 , E21B33/06 , E21B33/128 , E21B

16. 发明专利

NO20004849L 未知
公开(公告)号：NO20004849L
公开(公告)日：2000-11-27
申请号：NO20004849
申请日：2000-09-27
申请人： HYDRIL CO
发明人： PETERMAN CHARLES P , MOTT KEITH C , COLVIN KENNETH W , GOLDSMITH RILEY G , PELATA KENNETH L
IPC分类号： E21B21/00 , E21B21/01 , E21B21/08 , E21B33/08 , E21B43/36 , F04B19/00 , F04B43/06 , E21B7/128 , E21B17/00
摘要： A system for drilling a subsea well from a rig through a subsea wellhead below the rig includes a wellhead stack which is mounted on the subsea wellhead. The wellhead stack includes at least a subsea blowout preventer stack and a subsea diverter. A drill string extends from the rig through the wellhead stack into the well to conduct drilling fluid from the rig to a drill bit in the well. A riser which has one end coupled to the wellhead stack and another end coupled to the rig internally receives the drill string such that a riser annulus is defined between the drill string and the riser. A well annulus extends from the bottom of the well to the subsea diverter to conduct fluid away from the drill bit. A pump has a suction side in communication with the well annulus and a discharge side in communication with the rig and is operable to maintain a selected pressure gradient in the well annulus.

17. 发明专利

NO306914B1 未知
公开(公告)号：NO306914B1
公开(公告)日：2000-01-10
申请号：NO942855
申请日：1994-08-01
申请人： HYDRIL CO
发明人： YOUNG KENNETH D , COLVIN KENNETH W , FREDERICK JOSEPH L
IPC分类号： E21B33/06 , E21B34/16 , G01B7/02 , E21B44/00

18. 发明专利

AU3366599A Rotating subsea diverter 未知
公开(公告)号：AU3366599A
公开(公告)日：1999-10-18
申请号：AU3366599
申请日：1999-03-26
申请人： HYDRIL CO
发明人： PELATA KENNETH L , COLVIN KENNETH W , TANGEDAHL MICHAEL J , BAILEY ANDYLE G
IPC分类号： E21B21/00 , E21B21/01 , E21B21/08 , E21B33/08 , E21B43/36 , F04B19/00 , F04B43/06 , E21B7/128
摘要： A rotating diverter for isolating fluid in a well from other fluid above the well is provided. The rotating diverter includes a housing body which has a bore running through it. A retrievable spindle assembly which includes a spindle and a bearing assembly is disposed in the bore. The bearing assembly supports the spindle for rotation. The spindle is adapted to receive and seal around a tubular member, and rotation of the tubular member rotates the spindle within the bore. A lock member is disposed in the housing body to secure the retrievable spindle assembly to the housing body.

19. 发明专利

FR2733790A1 未知
公开(公告)号：FR2733790A1
公开(公告)日：1996-11-08
申请号：FR9605491
申请日：1996-05-02
申请人： HYDRIL CO
发明人： COLVIN KENNETH W , CARBAUGH WILLIAM L
IPC分类号： E21B33/06 , E21B34/00

20. 发明专利

NO942855A 未知
公开(公告)号：NO942855A
公开(公告)日：1995-02-03
申请号：NO942855
申请日：1994-08-01
申请人： HYDRIL CO
发明人： YOUNG KENNETH D , COLVIN KENNETH W , FREDERICK JOSEPH L
IPC分类号： E21B33/06 , E21B34/16 , G01B7/02 , G01B7/15 , G01B17/00
CPC分类号： G01B7/02 , E21B33/062 , E21B33/063 , E21B34/16 , Y10T137/8242

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