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Class Information
Number: 166/266
Name: Wells > Processes > Separating material entering well > Injection and producing wells
Description: A process including using a plurality of wells, at least one of which receives a fluid for insertion into the pores of the earth and another of which conveys a fluid from the pores of the earth to the surface of the earth.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4476928 |
Method and apparatus for solvent generation and recovery of hydrocarbons |
Oct. 16, 1984 |
| 4476927 |
Method for controlling H.sub.2 /CO ratio of in-situ coal gasification product gas |
Oct. 16, 1984 |
| 4475592 |
In situ recovery process for heavy oil sands |
Oct. 9, 1984 |
| 4473120 |
Method of retorting oil shale using a geothermal reservoir |
Sep. 25, 1984 |
| 4461350 |
Thermal solvent recovery method utilizing visbroken produced crude oil |
Jul. 24, 1984 |
| 4456068 |
Process and apparatus for thermal enhancement |
Jun. 26, 1984 |
| 4454914 |
Method for conditioning geothermal brine to reduce scale formation |
Jun. 19, 1984 |
| 4454915 |
In situ retorting of oil shale with air, steam, and recycle gas |
Jun. 19, 1984 |
| 4452689 |
Huff and puff process for retorting oil shale |
Jun. 5, 1984 |
| 4450913 |
Superheated solvent method for recovering viscous petroleum |
May. 29, 1984 |
| 4446921 |
Method for underground gasification of solid fuels |
May. 8, 1984 |
| 4440650 |
Process for enhancing recovery of oil from oil-bearing earth formations |
Apr. 3, 1984 |
| 4437519 |
Reduction of shale oil pour point |
Mar. 20, 1984 |
| 4423779 |
Oil recovery system and process |
Jan. 3, 1984 |
| 4418752 |
Thermal oil recovery with solvent recirculation |
Dec. 6, 1983 |
| 4415032 |
Carbonated waterflooding for viscous oil recovery using a CO.sub.2 solubility promoter and demoter |
Nov. 15, 1983 |
| 4415031 |
Use of recycled combustion gas during termination of an in-situ combustion oil recovery method |
Nov. 15, 1983 |
| 4408665 |
In situ recovery of oil and gas from water-flooded oil shale formations |
Oct. 11, 1983 |
| 4401289 |
Adjustable mirror stabilizing mounting |
Aug. 30, 1983 |
| 4401789 |
Enhanced oil recovery methods and systems |
Aug. 30, 1983 |
| 4395340 |
Enhanced oil recovery methods and systems |
Jul. 26, 1983 |
| 4384614 |
Method of retorting oil shale by velocity flow of super-heated air |
May. 24, 1983 |
| 4382912 |
Selective combusting of hydrogen sulfide in carbon dioxide injection gas |
May. 10, 1983 |
| 4379489 |
Method for production of heavy oil from tar sands |
Apr. 12, 1983 |
| 4378048 |
Substoichiometric combustion of low heating value gases using different platinum catalysts |
Mar. 29, 1983 |
| 4372383 |
In situ separation of bitumen from bitumen-bearing deposits |
Feb. 8, 1983 |
| 4366864 |
Method for recovery of hydrocarbons from oil-bearing limestone or dolomite |
Jan. 4, 1983 |
| 4363361 |
Substoichiometric combustion of low heating value gases |
Dec. 14, 1982 |
| 4362212 |
Method for enhanced petroleum oil recovery |
Dec. 7, 1982 |
| 4359091 |
Recovery of underground hydrocarbons |
Nov. 16, 1982 |
| 4344486 |
Method for enhanced oil recovery |
Aug. 17, 1982 |
| 4333529 |
Oil recovery process |
Jun. 8, 1982 |
| 4331202 |
Method for recovery of hydrocarbon material from hydrocarbon material-bearing formations |
May. 25, 1982 |
| 4330038 |
Oil reclamation process |
May. 18, 1982 |
| 4320802 |
Use of land-fill gas to stimulate crude oil production and to recover methane-rich gas |
Mar. 23, 1982 |
| 4319635 |
Method for enhanced oil recovery by geopressured waterflood |
Mar. 16, 1982 |
| 4314779 |
Method of aquifer restoration |
Feb. 9, 1982 |
| 4305463 |
Oil recovery method and apparatus |
Dec. 15, 1981 |
| 4303127 |
Multistage clean-up of product gas from underground coal gasification |
Dec. 1, 1981 |
| 4300860 |
Method of treating a subterranean formation to remove ammonium ions |
Nov. 17, 1981 |
| 4286660 |
Process and installation for the flooding of petroleum deposits and oil shale |
Sep. 1, 1981 |
| 4276933 |
Surfactant waterflood method for the recovery of oil |
Jul. 7, 1981 |
| 4277352 |
Demulsification of emulsions produced from surfactant recovery operations and recovery of surfactants therefrom |
Jul. 7, 1981 |
| 4273189 |
Method and apparatus for recovering natural gas from geopressured salt water |
Jun. 16, 1981 |
| 4264431 |
Oil sand treating system |
Apr. 28, 1981 |
| 4261420 |
Enriched oil recovery using carbon dioxide |
Apr. 14, 1981 |
| 4250962 |
In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations |
Feb. 17, 1981 |
| 4250230 |
Generating electricity from coal in situ |
Feb. 10, 1981 |
| 4249605 |
Secondary recovery method and system using solar energy and concentric tank separator |
Feb. 10, 1981 |
| 4232738 |
Petroleum recovery process using native petroleum surfactants |
Nov. 11, 1980 |
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