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Class Information
Number: 175/5
Name: Boring or penetrating the earth > Boring a submerged formation
Description: Process or apparatus comprising a step or means for sinking a well, shaft or deep boring in the surface of the earth lying below a body of water, (e.g., ocean, lake or river).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6216799 |
Subsea pumping system and method for deepwater drilling |
Apr. 17, 2001 |
| 6217258 |
Dual hoist derrick system for deep sea drilling |
Apr. 17, 2001 |
| 6196333 |
Hydrostatic penetration device and tool for the same |
Mar. 6, 2001 |
| 6171027 |
Cantilevered jack-up platform |
Jan. 9, 2001 |
| 6142235 |
Bottom-supported guidance device for alignment of multiple wellbores in a single conductor |
Nov. 7, 2000 |
| 6138774 |
Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment |
Oct. 31, 2000 |
| 6129487 |
Underwater pile driving tool |
Oct. 10, 2000 |
| 6068069 |
Multi-activity offshore exploration and/or development drilling method and apparatus |
May. 30, 2000 |
| 6056071 |
Multi-activity offshore exploration and/or development drilling method and apparatus |
May. 2, 2000 |
| 6047781 |
Multi-activity offshore exploration and/or development drilling method and apparatus |
Apr. 11, 2000 |
| 6012529 |
Downhole guide member for multiple casing strings |
Jan. 11, 2000 |
| 5950737 |
Drilling riser centralizer |
Sep. 14, 1999 |
| 5918675 |
Close proximity wellheads |
Jul. 6, 1999 |
| 5894895 |
Heave compensator for drill ships |
Apr. 20, 1999 |
| 5865260 |
Method and apparatus for drilling multiple wells from a platform |
Feb. 2, 1999 |
| 5810086 |
Single riser with two wellheads |
Sep. 22, 1998 |
| 5647443 |
Method and device for drilling for oil or gas |
Jul. 15, 1997 |
| 5560435 |
Method and apparatus for drilling multiple offshore wells from within a single conductor string |
Oct. 1, 1996 |
| 5379844 |
Offshore platform well system |
Jan. 10, 1995 |
| 5284213 |
Subsea drilling cuttings collector and method of drilling |
Feb. 8, 1994 |
| 5211228 |
Diverter system |
May. 18, 1993 |
| 5209302 |
Semi-active heave compensation system for marine vessels |
May. 11, 1993 |
| 5199495 |
Split wear bushing for a drilling rig |
Apr. 6, 1993 |
| 5184686 |
Method for offshore drilling utilizing a two-riser system |
Feb. 9, 1993 |
| 5082069 |
Combination drivepipe/casing and installation method for offshore well |
Jan. 21, 1992 |
| 5060731 |
Method of installing well conductors |
Oct. 29, 1991 |
| 5035291 |
Seafloor drilling apparatus |
Jul. 30, 1991 |
| 5004051 |
Method and means for cleansing and storing drill cuttings from drilling operations in the sea bottom |
Apr. 2, 1991 |
| 4995762 |
Semisubmersible vessel with captured constant tension buoy |
Feb. 26, 1991 |
| 4966495 |
Semisubmersible vessel with captured constant tension buoy |
Oct. 30, 1990 |
| 4962817 |
Active reference system |
Oct. 16, 1990 |
| 4901803 |
Method and equipment for performing drilling operations and servicing in an underwater well from a floating surface installation |
Feb. 20, 1990 |
| 4886397 |
Dynamic load compensating system |
Dec. 12, 1989 |
| 4883387 |
Apparatus for tensioning a riser |
Nov. 28, 1989 |
| 4883388 |
Load compensating system |
Nov. 28, 1989 |
| 4858694 |
Heave compensated stabbing and landing tool |
Aug. 22, 1989 |
| 4787778 |
Method and apparatus for tensioning a riser |
Nov. 29, 1988 |
| 4762185 |
Off-shore drilling |
Aug. 9, 1988 |
| 4740107 |
Method and apparatus for protecting a shallow-water well |
Apr. 26, 1988 |
| 4723805 |
Transloader |
Feb. 9, 1988 |
| 4703813 |
Cementing portion of conductor string |
Nov. 3, 1987 |
| 4662786 |
Dynamic load compensating system |
May. 5, 1987 |
| 4630681 |
Multi-well hydrocarbon development system |
Dec. 23, 1986 |
| 4624318 |
Method and means for storing a marine riser |
Nov. 25, 1986 |
| 4613001 |
Weather protected offshore drilling rig |
Sep. 23, 1986 |
| 4604818 |
Under reaming pile bore excavating bucket and method of its excavation |
Aug. 12, 1986 |
| 4596291 |
Floating drilling platform |
Jun. 24, 1986 |
| 4574241 |
Marine surveying apparatus and method for locating pipelines buried under the seabed |
Mar. 4, 1986 |
| 4572304 |
Portable seabed penetration system |
Feb. 25, 1986 |
| 4501219 |
Tensioner apparatus with emergency limit means |
Feb. 26, 1985 |
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