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Class Information
Number: 175/6
Name: Boring or penetrating the earth > Boring a submerged formation > Boring with underwater tool drive prime mover
Description: Subject matter including a drive means for a boring tool, and in which said drive means is located below the surface of the water during the boring operation.










Patents under this class:

Patent Number Title Of Patent Date Issued
8534379 Apparatus and methods for drilling a wellbore using casing Sep. 17, 2013
7730965 Retractable joint and cementing shoe for use in completing a wellbore Jun. 8, 2010
7703534 Underwater seafloor drilling rig Apr. 27, 2010
7644768 Separation device for material from a drilling rig situated on the seabed Jan. 12, 2010
7600570 Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells Oct. 13, 2009
7380614 Remotely operated water bottom based drilling system using cable for auxiliary operations Jun. 3, 2008
7255180 Modular drill system requiring limited field assembly and limited equipment support Aug. 14, 2007
7055623 Method for the drilling of the initial phase of deep water oil wells with an underwater well head Jun. 6, 2006
6705411 Downhole coring device Mar. 16, 2004
6390206 Core sampler May. 21, 2002
6374924 Downhole drilling apparatus Apr. 23, 2002
6315061 Brine-based drilling fluids for ballast tank storage Nov. 13, 2001
6273645 Position penetrated anchor system Aug. 14, 2001
5456325 Method and apparatus for driving a probe into the earth Oct. 10, 1995
5035291 Seafloor drilling apparatus Jul. 30, 1991
4964473 Method for driving a hydraulic submerged tool Oct. 23, 1990
4817734 Submergible electrohydraulic drive unit for ramming and working devices to be used under water Apr. 4, 1989
4813495 Method and apparatus for deepwater drilling Mar. 21, 1989
4770255 Arrangement for underwater drilling of foundations Sep. 13, 1988
4759413 Method and apparatus for setting an underwater drilling system Jul. 26, 1988
4640552 Method and apparatus for splitting ice masses Feb. 3, 1987
4579484 Underwater tapping machine Apr. 1, 1986
4502551 Deep draft drilling platform Mar. 5, 1985
4255068 Method and a device for undersea drilling Mar. 10, 1981
4234046 Pressure differential seafloor corer-carrier Nov. 18, 1980
4215544 Method of generating rotary power in a deepsea environment Aug. 5, 1980
4185694 Marine riser system Jan. 29, 1980
4051685 Positioning method and apparatus for submersible pile driving Oct. 4, 1977
4043407 Drilling sampling/testing equipment Aug. 23, 1977
4033139 Pile driving hammer, apparatus and method Jul. 5, 1977
3992889 Flotation means for subsea well riser Nov. 23, 1976
3970156 Water weighted corer Jul. 20, 1976
3948058 Device for soil sampling under water Apr. 6, 1976











 
 
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