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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 |
| 4372386 |
Steam injection method and apparatus for recovery of oil |
Feb. 8, 1983 |
| 4330038 |
Oil reclamation process |
May. 18, 1982 |
| 4322603 |
Electrode steam generator system for secondary oil recovery |
Mar. 30, 1982 |
| 4319635 |
Method for enhanced oil recovery by geopressured waterflood |
Mar. 16, 1982 |
| 4299278 |
Control system for well heating by steam |
Nov. 10, 1981 |
| 4289204 |
Solar heat treating of well fluids |
Sep. 15, 1981 |
| 4276936 |
Method of thermally insulating a wellbore |
Jul. 7, 1981 |
| 4266609 |
Method of extracting liquid and gaseous fuel from oil shale and tar sand |
May. 12, 1981 |
| 4258791 |
Thermal insulation method |
Mar. 31, 1981 |
| 4249605 |
Secondary recovery method and system using solar energy and concentric tank separator |
Feb. 10, 1981 |
| 4248306 |
Geothermal petroleum refining |
Feb. 3, 1981 |
| 4248298 |
Well logging evaporative thermal protection system |
Feb. 3, 1981 |
| 4224985 |
Containment of pressurized fluid jets |
Sep. 30, 1980 |
| 4224991 |
Method and apparatus for extracting crude oil from previously tapped deposits |
Sep. 30, 1980 |
| 4220202 |
Apparatus for realization of rock exploitation method based on thermodynamic cycles utilizing in situ energy source |
Sep. 2, 1980 |
| 4203472 |
Device for stopping fluid flow from a pipe |
May. 20, 1980 |
| 4174752 |
Secondary recovery method and system for oil wells using solar energy |
Nov. 20, 1979 |
| 4146095 |
Method and apparatus for nuclear heating of oil-bearing formations |
Mar. 27, 1979 |
| 4125159 |
Method and apparatus for isolating and treating subsurface stratas |
Nov. 14, 1978 |
| 4125289 |
Method for in situ minefields |
Nov. 14, 1978 |
| 4120357 |
Method and apparatus for recovering viscous petroleum from thick tar sand |
Oct. 17, 1978 |
| 4116275 |
Recovery of hydrocarbons by in situ thermal extraction |
Sep. 26, 1978 |
| 4114687 |
Systems for producing bitumen from tar sands |
Sep. 19, 1978 |
| 4113017 |
Hot effluent from partial oxidation of natural gas injected in oil recovery process |
Sep. 12, 1978 |
| 4085803 |
Method for oil recovery using a horizontal well with indirect heating |
Apr. 25, 1978 |
| RE29553 |
Oil shale retort flue gas cooling and cleaning |
Feb. 28, 1978 |
| 4072159 |
Emergency valve incorporating thermal foamable plastic material |
Feb. 7, 1978 |
| 4057106 |
Hot water flood |
Nov. 8, 1977 |
| 4040480 |
Storage of radioactive material |
Aug. 9, 1977 |
| 4030547 |
Apparatus for cryothermal fracturing of rock formations |
Jun. 21, 1977 |
| 4024912 |
Hydrogen generating system |
May. 24, 1977 |
| 4024919 |
Technique for insulating a wellbore with silicate foam |
May. 24, 1977 |
| 4020901 |
Arrangement for recovering viscous petroleum from thick tar sand |
May. 3, 1977 |
| 3994341 |
Recovering viscous petroleum from thick tar sand |
Nov. 30, 1976 |
| 3994340 |
Method of recovering viscous petroleum from tar sand |
Nov. 30, 1976 |
| 3993135 |
Thermal process for recovering viscous petroleum |
Nov. 23, 1976 |
| 3978921 |
Apparatus for cryothermal fracturing of rock formations |
Sep. 7, 1976 |
| 3952802 |
Method and apparatus for in situ gasification of coal and the commercial products derived therefrom |
Apr. 27, 1976 |
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