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Class Information
Number: 166/57
Name: Wells > With heating, refrigerating or heat insulating means
Description: Devices for causing a heating, refrigerating or heat insulating effect.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5715895 |
Downhole drilling tool cooling system |
Feb. 10, 1998 |
| 5649594 |
Method and apparatus for servicing a wellhead assembly |
Jul. 22, 1997 |
| 5641022 |
Method for removing paraffin and asphaltene from producing wells |
Jun. 24, 1997 |
| 5590715 |
Underground heat exchange system |
Jan. 7, 1997 |
| 5558463 |
Soil remediation apparatus and method |
Sep. 24, 1996 |
| 5535825 |
Heat controlled oil production system and method |
Jul. 16, 1996 |
| 5511905 |
Direct injection of cold fluids into a subterranean cavern |
Apr. 30, 1996 |
| 5372194 |
Method of and means for operating geothermal wells |
Dec. 13, 1994 |
| 5353869 |
Method and apparatus for producing excessively hot hydrogeothermal fluids |
Oct. 11, 1994 |
| 5335728 |
Method and apparatus for disposing of water at gas wells |
Aug. 9, 1994 |
| 5297627 |
Method for reduced water coning in a horizontal well during heavy oil production |
Mar. 29, 1994 |
| 5265677 |
Refrigerant-cooled downhole tool and method |
Nov. 30, 1993 |
| 5261490 |
Method for dumping and disposing of carbon dioxide gas and apparatus therefor |
Nov. 16, 1993 |
| 5238066 |
Method and apparatus for improved recovery of oil and bitumen using dual completion cyclic steam stimulation |
Aug. 24, 1993 |
| 5217075 |
Method and device for carrying out interventions in wells where high temperatures prevail |
Jun. 8, 1993 |
| 5215149 |
Single horizontal well conduction assisted steam drive process for removing viscous hydrocarbonaceous fluids |
Jun. 1, 1993 |
| 5213157 |
Clamping device for capping oil wells and the like, and apparatus for mounting same |
May. 25, 1993 |
| 5190105 |
Method for improving the steam splits in a multiple steam injection process |
Mar. 2, 1993 |
| 5163714 |
Electronically-nonconducting system for the connection of metal tubular elements, especially suitable for use as an antenna framework located at great depth |
Nov. 17, 1992 |
| 5159983 |
Apparatus and method for capping oil or gas wells |
Nov. 3, 1992 |
| 5146987 |
Method and apparatus for controlling the flow of crude oil from the earth |
Sep. 15, 1992 |
| 5141055 |
Method and apparatus for controlling the mass flow rate of steam in steam distribution systems |
Aug. 25, 1992 |
| 5133406 |
Generating oxygen-depleted air useful for increasing methane production |
Jul. 28, 1992 |
| 5095974 |
Assembly for introducing steam into an oil-bearing stratum |
Mar. 17, 1992 |
| 5056597 |
Method for improving the steam splits in a multiple steam injection process using multiple steam headers |
Oct. 15, 1991 |
| 5054556 |
Method of and means for operating geothermal wells |
Oct. 8, 1991 |
| 5052482 |
Catalytic downhole reactor and steam generator |
Oct. 1, 1991 |
| 5040605 |
Oil recovery method and apparatus |
Aug. 20, 1991 |
| 5026209 |
Containment casing for a deep well gravity pressure reactor vessel |
Jun. 25, 1991 |
| 5025862 |
Steam injection piping |
Jun. 25, 1991 |
| 5016716 |
Tubing carried perforating gun with insulation jacket |
May. 21, 1991 |
| 5000263 |
Method for improving the steam splits in a multiple steam injection process using multiple steam headers |
Mar. 19, 1991 |
| 4997048 |
Drill pipe assemblies |
Mar. 5, 1991 |
| 4995460 |
Method and apparatus for disposing of water at gas wells |
Feb. 26, 1991 |
| 4982788 |
Apparatus and method for removing volatile contaminants from the ground |
Jan. 8, 1991 |
| 4953635 |
Method for improving the steam splits in a multiple steam injection process |
Sep. 4, 1990 |
| 4950394 |
Arrangement for driving out volatile impurities from ground water |
Aug. 21, 1990 |
| 4937052 |
Underground chemical reactor |
Jun. 26, 1990 |
| 4901796 |
Well packing system |
Feb. 20, 1990 |
| 4896725 |
In-well heat exchange method for improved recovery of subterranean fluids with poor flowability |
Jan. 30, 1990 |
| 4886118 |
Conductively heating a subterranean oil shale to create permeability and subsequently produce oil |
Dec. 12, 1989 |
| 4882009 |
Apparatus for concentrating brine waters or dewatering brines generated in well drilling operation |
Nov. 21, 1989 |
| 4877542 |
Thermal insulating fluid |
Oct. 31, 1989 |
| 4872507 |
Well bore apparatus arranged for operating in high-temperature wells as well as in low-temperature wells |
Oct. 10, 1989 |
| 4865130 |
Hot gas generator with integral recovery tube |
Sep. 12, 1989 |
| 4860827 |
Process and device for oil recovery using steam and oxygen-containing gas |
Aug. 29, 1989 |
| 4811786 |
Downhole gaseous liquid flow agitator |
Mar. 14, 1989 |
| 4807701 |
Method for thermal stimulation of a subterranean reservoir and apparatus therefor |
Feb. 28, 1989 |
| 4793409 |
Method and apparatus for forming an insulated oil well casing |
Dec. 27, 1988 |
| 4792408 |
Method and apparatus for enhancing chemical reactions at supercritical conditions |
Dec. 20, 1988 |
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