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Class Information
Number: 166/61
Name: Wells > With heating, refrigerating or heat insulating means > Heater surrounding production tube
Description: Devices in which a heating means surrounds the well conduit through which the earth fluid flows to the surface of the ground.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610955 |
Controlled gas-lift heat exchange compressor |
Nov. 3, 2009 |
| 7582269 |
Thermally autogenous subsurface chemical reactor and method |
Sep. 1, 2009 |
| 7568526 |
Subterranean electro-thermal heating system and method |
Aug. 4, 2009 |
| 7389814 |
Heat exchange compressor |
Jun. 24, 2008 |
| 7367398 |
Device for heating and thermally insulating at least one undersea pipeline |
May. 6, 2008 |
| 7322415 |
Subterranean electro-thermal heating system and method |
Jan. 29, 2008 |
| 7293606 |
Heat exchanging apparatus |
Nov. 13, 2007 |
| 7032658 |
High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
Apr. 25, 2006 |
| 7017664 |
Single trip horizontal gravel pack and stimulation system and method |
Mar. 28, 2006 |
| 6955221 |
Active heating of thermally insulated flowlines |
Oct. 18, 2005 |
| 6939082 |
Subea pipeline blockage remediation method |
Sep. 6, 2005 |
| 6926083 |
Cement heating tool for oil and gas well completion |
Aug. 9, 2005 |
| 6776227 |
Wellhead heating apparatus and method |
Aug. 17, 2004 |
| 6752210 |
In situ thermal processing of a coal formation using heat sources positioned within open wellbores |
Jun. 22, 2004 |
| 6588500 |
Enhanced oil well production system |
Jul. 8, 2003 |
| 6338381 |
Heat exchange systems |
Jan. 15, 2002 |
| 5899269 |
Flameless combustor |
May. 4, 1999 |
| 5285846 |
Thermal mineral extraction system |
Feb. 15, 1994 |
| 5211223 |
Down hole oil well heater employing electro-thermal paper |
May. 18, 1993 |
| 5126037 |
Geopreater heating method and apparatus |
Jun. 30, 1992 |
| 5040605 |
Oil recovery method and apparatus |
Aug. 20, 1991 |
| 4988389 |
Exploitation method for reservoirs containing hydrogen sulphide |
Jan. 29, 1991 |
| 4865130 |
Hot gas generator with integral recovery tube |
Sep. 12, 1989 |
| 4783585 |
Downhole electric steam or hot water generator for oil wells |
Nov. 8, 1988 |
| 4576661 |
Process for sealing the end of insulated pipes which have a number of monitoring wires, and means for carrying out the process |
Mar. 18, 1986 |
| 4509599 |
Gas well liquid removal system and process |
Apr. 9, 1985 |
| 4446917 |
Method and apparatus for producing viscous or waxy crude oils |
May. 8, 1984 |
| 4436158 |
Releasable drill string device and method |
Mar. 13, 1984 |
| 4328865 |
Wax control in oil wells using a thermal syphon system |
May. 11, 1982 |
| 4304308 |
Burner apparatus for making holes in coal seams |
Dec. 8, 1981 |
| 4154297 |
Lift gas heat exchanger |
May. 15, 1979 |
| 4019575 |
System for recovering viscous petroleum from thick tar sand |
Apr. 26, 1977 |
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