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Class Information
Number: 175/8
Name: Boring or penetrating the earth > Boring a submerged formation > Boring from submerged buoyant support
Description: Subject matter, utilizing a normally floating or buoyant support for a boring means which is submerged to a position below the surface of the water during the boring operation.










Patents under this class:

Patent Number Title Of Patent Date Issued
7325628 Anchor for vehicle, vehicle and anchor in combination, and method of using the anchor Feb. 5, 2008
7255180 Modular drill system requiring limited field assembly and limited equipment support Aug. 14, 2007
6691784 Riser tensioning system Feb. 17, 2004
6622793 Method for carrying out operations on petroleum and gas fields and deep-sea platform for realizing the same Sep. 23, 2003
6579040 Method and apparatus for air can vent systems Jun. 17, 2003
6488447 Composite buoyancy module Dec. 3, 2002
6435775 Buoyancy system with buoyancy module seal Aug. 20, 2002
6408948 Tubing handling for subsea oilfield tubing operations Jun. 25, 2002
6244347 Subsea well drilling and/or completion apparatus Jun. 12, 2001
6171027 Cantilevered jack-up platform Jan. 9, 2001
6047781 Multi-activity offshore exploration and/or development drilling method and apparatus Apr. 11, 2000
6000480 Arrangement in connection with drilling of oil wells especially with coil tubing Dec. 14, 1999
5240081 Mudline subsea wellhead system Aug. 31, 1993
5044450 Spar-buoy boring derrick and mooring facility Sep. 3, 1991
4919065 Submarine vehicle intended to measure data at the deep ocean sea-bottom Apr. 24, 1990
4913238 Floating/tensioned production system with caisson Apr. 3, 1990
4762185 Off-shore drilling Aug. 9, 1988
4716972 Floating drilling platform Jan. 5, 1988
4702321 Drilling, production and oil storage caisson for deep water Oct. 27, 1987
4630681 Multi-well hydrocarbon development system Dec. 23, 1986
4502551 Deep draft drilling platform Mar. 5, 1985
4305468 Method for drilling wellbores from an offshore platform Dec. 15, 1981
4136996 Directional drilling marine structure Jan. 30, 1979
4100754 Method and apparatus for installing pipes in off-shore locations Jul. 18, 1978
4068729 Apparatus for multiple wells through a single caisson Jan. 17, 1978
4054104 Submarine well drilling and geological exploration station Oct. 18, 1977
4030310 Monopod drilling platform with directional drilling Jun. 21, 1977











 
 
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