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Class Information
Number: 166/901
Name: Wells > Wells in frozen terrain
Description: Subject matter specialized to well operations in locations where the temperature of the soil is below the freezing point of water.










Patents under this class:

Patent Number Title Of Patent Date Issued
8672043 Enclosed coiled tubing boat and methods Mar. 18, 2014
8387698 Gas recovery component heating system Mar. 5, 2013
8376659 Arctic platform method Feb. 19, 2013
8176983 Gas recovery component heating system May. 15, 2012
7798237 Enclosed coiled tubing rig Sep. 21, 2010
7568526 Subterranean electro-thermal heating system and method Aug. 4, 2009
7322415 Subterranean electro-thermal heating system and method Jan. 29, 2008
7316275 Well treating compositions containing water superabsorbent material and method of using the same Jan. 8, 2008
7306039 Methods of using crosslinkable compositions Dec. 11, 2007
7219735 Packer fluid May. 22, 2007
7219733 Zeolite compositions for lowering maximum cementing temperature May. 22, 2007
6955220 Process of well cementing in cold environment Oct. 18, 2005
6953091 Cementing compositions including a dispersant agent for cementing operation in oil wells Oct. 11, 2005
6776227 Wellhead heating apparatus and method Aug. 17, 2004
6328110 Process for destroying a rigid thermal insulator positioned in a confined space Dec. 11, 2001
6283215 Process for thermal insulation of production tubings placed in a well by means of a non-rigid foam and a system for working a fluid producing well Sep. 4, 2001
6260615 Method and apparatus for de-icing oilwells Jul. 17, 2001
6032732 Well head heating system Mar. 7, 2000
6009940 Production in frigid environments Jan. 4, 2000
5248005 Self-propelled drilling module Sep. 28, 1993
5125857 Harness method for use in cold weather oil field operations and apparatus Jun. 30, 1992
4574884 Drainhole and downhole hot fluid generation oil recovery method Mar. 11, 1986
4528104 Oil based packer fluids Jul. 9, 1985
4522258 Unitized well testing apparatus for use in hostile environments Jun. 11, 1985
4444263 Permanent thermal packer method Apr. 24, 1984
4413679 Wellbore cathodic protection Nov. 8, 1983
4348056 Method for above-ground leaching of metal bearing ores at below-freezing temperatures Sep. 7, 1982
4258791 Thermal insulation method Mar. 31, 1981
4202413 Well cementing process using presheared water swellable clays May. 13, 1980
4176720 Well cementing in permafrost Dec. 4, 1979
4125289 Method for in situ minefields Nov. 14, 1978
4077472 Well flow control system and method Mar. 7, 1978
4036285 Arrangement to control heat flow between a member and its environment Jul. 19, 1977
3995695 Method for completing a well in a permafrost zone Dec. 7, 1976
3990502 Arrangement to control heat flow between a member and its environment Nov. 9, 1976
3986781 Structure for protecting and insulating frozen substrates and method for producing such structures Oct. 19, 1976
3973626 Well completion in permafrost Aug. 10, 1976
3971441 Well completion in permafrost Jul. 27, 1976
3968999 Method of making available fuels from arctic environments Jul. 13, 1976
3948313 Arrangement to control heat flow between a member and its environment Apr. 6, 1976
3937282 Method for cementing wells in low temperature formations Feb. 10, 1976











 
 
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