US4099699A
(en)
*
|
1976-09-10 |
1978-07-11 |
Cameron Iron Works, Inc. |
Annular blowout preventer
|
US4208056A
(en)
*
|
1977-10-18 |
1980-06-17 |
Biffle Morris S |
Rotating blowout preventor with index kelly drive bushing and stripper rubber
|
DK143211C
(da)
*
|
1978-08-30 |
1981-11-23 |
Larsen U M |
Koblingsstykke til anbringelse ved enden af et roer for montering af en afspaerringsventil
|
US4310139A
(en)
*
|
1980-04-04 |
1982-01-12 |
Cameron Iron Works, Inc. |
Annular blowout preventer
|
US4332367A
(en)
*
|
1980-05-02 |
1982-06-01 |
Nl Industries, Inc. |
Blowout preventer having a variable ram seal
|
US4460149A
(en)
*
|
1980-06-05 |
1984-07-17 |
Nl Industries, Inc. |
Annular blowout preventer with upper and lower spherical sealing surfaces
|
US4283039A
(en)
*
|
1980-06-05 |
1981-08-11 |
Nl Industries, Inc. |
Annular blowout preventer with upper and lower spherical sealing surfaces
|
US4460151A
(en)
*
|
1981-12-29 |
1984-07-17 |
Cameron Iron Works, Inc. |
Annular blowout preventer
|
GB2140484B
(en)
*
|
1982-11-05 |
1986-09-17 |
Hydril Co |
Safety valve apparatus and method
|
US4681133A
(en)
*
|
1982-11-05 |
1987-07-21 |
Hydril Company |
Rotatable ball valve apparatus and method
|
US4508311A
(en)
*
|
1982-11-12 |
1985-04-02 |
Cameron Iron Works, Inc. |
Annular blowout preventer
|
US4858882A
(en)
*
|
1987-05-27 |
1989-08-22 |
Beard Joseph O |
Blowout preventer with radial force limiter
|
US4949785A
(en)
*
|
1989-05-02 |
1990-08-21 |
Beard Joseph O |
Force-limiting/wear compensating annular sealing element for blowout preventers
|
US5647444A
(en)
*
|
1992-09-18 |
1997-07-15 |
Williams; John R. |
Rotating blowout preventor
|
US5662181A
(en)
*
|
1992-09-30 |
1997-09-02 |
Williams; John R. |
Rotating blowout preventer
|
US5851013A
(en)
*
|
1997-07-03 |
1998-12-22 |
Hydril Company |
Blowout preventer packing element with metallic inserts
|
US6263982B1
(en)
|
1998-03-02 |
2001-07-24 |
Weatherford Holding U.S., Inc. |
Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
|
US6138774A
(en)
*
|
1998-03-02 |
2000-10-31 |
Weatherford Holding U.S., Inc. |
Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment
|
EP1762696A3
(en)
|
1999-03-02 |
2016-07-20 |
Weatherford Technology Holdings, LLC |
Iinternal riser rotating control head
|
US6321846B1
(en)
*
|
2000-02-24 |
2001-11-27 |
Schlumberger Technology Corp. |
Sealing device for use in subsea wells
|
US7836946B2
(en)
|
2002-10-31 |
2010-11-23 |
Weatherford/Lamb, Inc. |
Rotating control head radial seal protection and leak detection systems
|
CA2418774C
(en)
*
|
2003-02-13 |
2009-10-06 |
Kelly Borden |
Blowout preventer packing element with non - metallic composite inserts
|
US7926593B2
(en)
|
2004-11-23 |
2011-04-19 |
Weatherford/Lamb, Inc. |
Rotating control device docking station
|
US8826988B2
(en)
|
2004-11-23 |
2014-09-09 |
Weatherford/Lamb, Inc. |
Latch position indicator system and method
|
US8424607B2
(en)
*
|
2006-04-25 |
2013-04-23 |
National Oilwell Varco, L.P. |
System and method for severing a tubular
|
US20080023917A1
(en)
*
|
2006-07-28 |
2008-01-31 |
Hydril Company Lp |
Seal for blowout preventer with selective debonding
|
US8176933B2
(en)
*
|
2006-07-28 |
2012-05-15 |
Hydril Usa Manufacturing Llc |
Annular BOP packing unit
|
US20080078081A1
(en)
*
|
2006-09-28 |
2008-04-03 |
Huff Philip A |
High pressure-rated ram blowout preventer and method of manufacture
|
US20080105340A1
(en)
*
|
2006-11-02 |
2008-05-08 |
Huff Philip A |
Heat Treatment Method of Inlaid Pressure Vessels
|
US20080105341A1
(en)
*
|
2006-11-02 |
2008-05-08 |
Huff Philip A |
Heat treatment of inlaid pressure vessels
|
US7721401B2
(en)
*
|
2006-09-28 |
2010-05-25 |
Hydril Usa Manufacturing Llc |
Reinforcement of irregular pressure vessels
|
US7849599B2
(en)
*
|
2006-09-28 |
2010-12-14 |
Hydril Usa Manufacturing Llc |
Imputing strength gradient in pressure vessels
|
US7559359B2
(en)
*
|
2007-08-27 |
2009-07-14 |
Williams John R |
Spring preloaded bearing assembly and well drilling equipment comprising same
|
US7726416B2
(en)
|
2007-08-27 |
2010-06-01 |
Theresa J. Williams, legal representative |
Bearing assembly retaining apparatus and well drilling equipment comprising same
|
US7789172B2
(en)
|
2007-08-27 |
2010-09-07 |
Williams John R |
Tapered bearing assembly cover plate and well drilling equipment comprising same
|
US7798250B2
(en)
*
|
2007-08-27 |
2010-09-21 |
Theresa J. Williams, legal representative |
Bearing assembly inner barrel and well drilling equipment comprising same
|
US7717170B2
(en)
|
2007-08-27 |
2010-05-18 |
Williams John R |
Stripper rubber pot mounting structure and well drilling equipment comprising same
|
US7717169B2
(en)
*
|
2007-08-27 |
2010-05-18 |
Theresa J. Williams, legal representative |
Bearing assembly system with integral lubricant distribution and well drilling equipment comprising same
|
US7762320B2
(en)
|
2007-08-27 |
2010-07-27 |
Williams John R |
Heat exchanger system and method of use thereof and well drilling equipment comprising same
|
US7766100B2
(en)
|
2007-08-27 |
2010-08-03 |
Theresa J. Williams, legal representative |
Tapered surface bearing assembly and well drilling equiment comprising same
|
US7635034B2
(en)
*
|
2007-08-27 |
2009-12-22 |
Theresa J. Williams, legal representative |
Spring load seal assembly and well drilling equipment comprising same
|
US7997345B2
(en)
|
2007-10-19 |
2011-08-16 |
Weatherford/Lamb, Inc. |
Universal marine diverter converter
|
US8844652B2
(en)
|
2007-10-23 |
2014-09-30 |
Weatherford/Lamb, Inc. |
Interlocking low profile rotating control device
|
US8286734B2
(en)
|
2007-10-23 |
2012-10-16 |
Weatherford/Lamb, Inc. |
Low profile rotating control device
|
US7708089B2
(en)
*
|
2008-02-07 |
2010-05-04 |
Theresa J. Williams, legal representative |
Breech lock stripper rubber pot mounting structure and well drilling equipment comprising same
|
GB0804306D0
(en)
|
2008-03-07 |
2008-04-16 |
Petrowell Ltd |
Device
|
US8403290B2
(en)
*
|
2008-06-09 |
2013-03-26 |
Alberta Petroleum Industries Ltd. |
Wiper seal assembly
|
US8322432B2
(en)
|
2009-01-15 |
2012-12-04 |
Weatherford/Lamb, Inc. |
Subsea internal riser rotating control device system and method
|
US9359853B2
(en)
|
2009-01-15 |
2016-06-07 |
Weatherford Technology Holdings, Llc |
Acoustically controlled subsea latching and sealing system and method for an oilfield device
|
US8347983B2
(en)
|
2009-07-31 |
2013-01-08 |
Weatherford/Lamb, Inc. |
Drilling with a high pressure rotating control device
|
GB2489265B
(en)
|
2011-03-23 |
2017-09-20 |
Managed Pressure Operations |
Blow out preventer
|
US8347982B2
(en)
|
2010-04-16 |
2013-01-08 |
Weatherford/Lamb, Inc. |
System and method for managing heave pressure from a floating rig
|
US9175542B2
(en)
|
2010-06-28 |
2015-11-03 |
Weatherford/Lamb, Inc. |
Lubricating seal for use with a tubular
|
US8448711B2
(en)
|
2010-09-23 |
2013-05-28 |
Charles J. Miller |
Pressure balanced drilling system and method using the same
|
EA201101238A1
(ru)
*
|
2010-09-28 |
2012-05-30 |
Смит Интернэшнл, Инк. |
Переходный фланец для поворотного регулирующего устройства
|
US9074450B2
(en)
|
2012-02-03 |
2015-07-07 |
National Oilwell Varco, L.P. |
Blowout preventer and method of using same
|
US9068423B2
(en)
|
2012-02-03 |
2015-06-30 |
National Oilwell Varco, L.P. |
Wellhead connector and method of using same
|
GB2500188B
(en)
*
|
2012-03-12 |
2019-07-17 |
Managed Pressure Operations |
Blowout preventer assembly
|
US10309191B2
(en)
|
2012-03-12 |
2019-06-04 |
Managed Pressure Operations Pte. Ltd. |
Method of and apparatus for drilling a subterranean wellbore
|
GB2501094A
(en)
|
2012-04-11 |
2013-10-16 |
Managed Pressure Operations |
Method of handling a gas influx in a riser
|
EP2834449A2
(en)
|
2012-04-04 |
2015-02-11 |
National Oilwell Varco, L.P. |
Misalignment-tolerant wellsite connection assembly, system, and method
|
SG11201406315SA
(en)
|
2012-04-05 |
2014-11-27 |
Nat Oilwell Varco Lp |
Wellsite connector with piston driven collets and method of using same
|
US9388657B2
(en)
*
|
2012-07-13 |
2016-07-12 |
Clinton D. Nelson |
Automatic annular blow-out preventer
|
DE102013217383A1
(de)
|
2013-08-30 |
2015-03-19 |
Klaus Biester |
Blowout-Preventer Stack und Versorgungssystem
|
US9121245B2
(en)
*
|
2013-11-22 |
2015-09-01 |
Zp Interests, Llc |
Spherical-annular blowout preventer having a plurality of pistons
|
US20150144356A1
(en)
*
|
2013-11-22 |
2015-05-28 |
Zp Interests, Llc |
Spherical-annular blowout preventer having a plurality of pistons
|
US9631442B2
(en)
|
2013-12-19 |
2017-04-25 |
Weatherford Technology Holdings, Llc |
Heave compensation system for assembling a drill string
|
US9784065B2
(en)
|
2014-01-27 |
2017-10-10 |
Katch Kan Holdings Ltd. |
Apparatus and method for stripping solids and fluids from a string used in drilling or servicing wells
|
US9580987B2
(en)
*
|
2014-03-28 |
2017-02-28 |
National Oilwell Varco, L.P. |
Spherical blowout preventer with energizeable packer seal and method of using same
|
CA2965531C
(en)
|
2014-11-18 |
2021-03-23 |
Weatherford Tehcnology Holdings, Llc |
Annular isolation device for managed pressure drilling
|
US10316607B2
(en)
|
2014-12-17 |
2019-06-11 |
Managed Pressure Operations Pte. Ltd. |
Pressure containment devices
|
KR102397318B1
(ko)
*
|
2015-02-17 |
2022-05-11 |
내셔널 오일웰 바르코 엘.피. |
구형 폭파 방지기 스와프 와이퍼
|
US9938793B2
(en)
*
|
2015-11-24 |
2018-04-10 |
Freudenberg Oil & Gas, Llc |
Spherical blow out preventer annular seal
|
US10597966B2
(en)
*
|
2016-07-08 |
2020-03-24 |
Cameron International Corporation |
Blowout preventer apparatus and method
|
DE102016216469A1
(de)
|
2016-08-31 |
2018-03-01 |
Klaus Biester |
Blowout-Preventer Stack
|
US11655925B1
(en)
*
|
2016-12-01 |
2023-05-23 |
Texas First Industrial Corp |
Connector system and method of use
|
US20190178047A1
(en)
*
|
2017-12-12 |
2019-06-13 |
Axon Pressure Products, Inc. |
Annular blowout preventer packing element
|
US10858901B1
(en)
*
|
2018-02-20 |
2020-12-08 |
Shazam Rahim |
Remotely operated connecting assembly and method
|
EP3803036A4
(en)
*
|
2018-05-31 |
2022-01-26 |
National Oilwell Varco, L.P. |
BORE PRESSURE PLUG AND PROCESS
|
US11136849B2
(en)
|
2019-11-05 |
2021-10-05 |
Saudi Arabian Oil Company |
Dual string fluid management devices for oil and gas applications
|
US11230904B2
(en)
|
2019-11-11 |
2022-01-25 |
Saudi Arabian Oil Company |
Setting and unsetting a production packer
|
US11156052B2
(en)
|
2019-12-30 |
2021-10-26 |
Saudi Arabian Oil Company |
Wellbore tool assembly to open collapsed tubing
|
US11260351B2
(en)
|
2020-02-14 |
2022-03-01 |
Saudi Arabian Oil Company |
Thin film composite hollow fiber membranes fabrication systems
|
US11253819B2
(en)
|
2020-05-14 |
2022-02-22 |
Saudi Arabian Oil Company |
Production of thin film composite hollow fiber membranes
|
US11655685B2
(en)
|
2020-08-10 |
2023-05-23 |
Saudi Arabian Oil Company |
Downhole welding tools and related methods
|
US11549329B2
(en)
|
2020-12-22 |
2023-01-10 |
Saudi Arabian Oil Company |
Downhole casing-casing annulus sealant injection
|
US11828128B2
(en)
|
2021-01-04 |
2023-11-28 |
Saudi Arabian Oil Company |
Convertible bell nipple for wellbore operations
|
US11598178B2
(en)
|
2021-01-08 |
2023-03-07 |
Saudi Arabian Oil Company |
Wellbore mud pit safety system
|
US12054999B2
(en)
|
2021-03-01 |
2024-08-06 |
Saudi Arabian Oil Company |
Maintaining and inspecting a wellbore
|
US11448026B1
(en)
|
2021-05-03 |
2022-09-20 |
Saudi Arabian Oil Company |
Cable head for a wireline tool
|
US11859815B2
(en)
|
2021-05-18 |
2024-01-02 |
Saudi Arabian Oil Company |
Flare control at well sites
|
US11905791B2
(en)
|
2021-08-18 |
2024-02-20 |
Saudi Arabian Oil Company |
Float valve for drilling and workover operations
|
US11913298B2
(en)
|
2021-10-25 |
2024-02-27 |
Saudi Arabian Oil Company |
Downhole milling system
|
US12116326B2
(en)
|
2021-11-22 |
2024-10-15 |
Saudi Arabian Oil Company |
Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst
|
US11993992B2
(en)
|
2022-08-29 |
2024-05-28 |
Saudi Arabian Oil Company |
Modified cement retainer with milling assembly
|