US Patent No: 7,331,393

Number of patents in Portfolio can not be more than 2000

Subsea lubricator device and methods of circulating fluids in a subsea lubricator

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Importance

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Abstract

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Subsea lubricator device, comprising a blowout preventer assembly, a tool housing assembly and a stuffing box, intended to be located at a subsea Christmas tree, and methods of circulating fluids in a subsea lubricator. The device comprises a blowout preventer (40) and a lubricator (60). Along the entire length of the device a bypass (46, 66) is located. The bypass communicates fluid with the device via a fluid connection (72) at the upper end of the tool housing and via a valve assembly (51) at the bottom of the blowout preventer. This permits removal of gas or oil being present in the device by circulating the hydrocarbons in the well.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FMC KONGSBERG SUBSEA ASKONGSBERG33
FMC TECHNOLOGIES, INC.CHICAGO, IL144

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoel, Karl-Willie Heggedal, NO 1 7

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 5,819,582 Slow wave time-domain reflectometer point level sensor 11 1997
 
The British Petroleum Company, P.L.C. (1)
4,993,492 Method of inserting wireline equipment into a subsea well 34 1990
 
VETCO GRAY INC. (2)
* 6,102,125 Coiled tubing workover riser 16 1998
* 6,360,822 Casing annulus monitoring apparatus and method 57 2000
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
* 4,658,904 Subsea master valve for use in well testing 44 1985
 
SOUTHLAND RENTALS, INC. (1)
4,836,289 Method and apparatus for performing wireline operations in a well 47 1988
 
Texaco Limited (1)
* 4,705,114 Offshore hydrocarbon production system 36 1985
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
FMC KONGSBERG SUBSEA AS (6)
* 7,549,476 Subsea wireline lubricator 3 2004
* 8,322,427 Control system 4 2007
* 2009/0151,956 GREASE INJECTION SYSTEM FOR RISERLESS LIGHT WELL INTERVENTION 5 2007
* 2008/0296,025 CONTROL SYSTEM 3 2007
* 8,684,089 Method and system for circulating fluid in a subsea intervention stack 1 2008
* 2011/0011,593 METHOD AND SYSTEM FOR CIRCULATING FLUID IN A SUBSEA INTERVENTION STACK 1 2008
 
ZEITECS B.V. (1)
8,534,366 Compact cable suspended pumping system for lubricator deployment 2 2010
 
REDSEAL LIMITED (1)
* 9,097,348 Seal 0 2009
 
FMC Kingsberg Subsea AS (1)
* 2007/0119,595 Subsea wireline lubricator 10 2004
 
ENOVATE SYSTEMS LIMITED (2)
* 9,169,714 Flushing system 0 2010
* 2012/0241,161 FLUSHING SYSTEM 1 2010
 
WILD WELL CONTROL, INC. (2)
* 8,857,520 Emergency disconnect system for riserless subsea well intervention system 0 2011
* 2012/0273,219 EMERGENCY DISCONNECT SYSTEM FOR RISERLESS SUBSEA WELL INTERVENTION SYSTEM 0 2011
* Cited By Examiner

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 19, 2019
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