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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 |
| 4223728 |
Method of oil recovery from underground reservoirs |
Sep. 23, 1980 |
| 4202169 |
System for combustion of gases of low heating value |
May. 13, 1980 |
| 4202168 |
Method for the recovery of power from LHV gas |
May. 13, 1980 |
| 4197911 |
Process for in situ coal gasification |
Apr. 15, 1980 |
| 4171017 |
Method of gas production from geopressurized geothermal brines |
Oct. 16, 1979 |
| 4162707 |
Method of treating formation to remove ammonium ions |
Jul. 31, 1979 |
| 4161047 |
Process for recovery of hydrocarbons |
Jul. 17, 1979 |
| 4149597 |
Method for generating steam |
Apr. 17, 1979 |
| 4140184 |
Method for producing hydrocarbons from igneous sources |
Feb. 20, 1979 |
| 4130164 |
Process for coal gasification |
Dec. 19, 1978 |
| 4119149 |
Recovering petroleum from subterranean formations |
Oct. 10, 1978 |
| 4114688 |
Minimizing environmental effects in production and use of coal |
Sep. 19, 1978 |
| 4112745 |
High temperature geothermal energy system |
Sep. 12, 1978 |
| 4109718 |
Method of breaking shale oil-water emulsion |
Aug. 29, 1978 |
| 4108244 |
Natural gas recovery method |
Aug. 22, 1978 |
| 4086963 |
Method of oxidizing hydrogen sulfide |
May. 2, 1978 |
| 4086960 |
Apparatus for hydrocarbon recovery from earth strata |
May. 2, 1978 |
| 4087130 |
Process for the gasification of coal in situ |
May. 2, 1978 |
| 4086962 |
Decreasing hydrogen sulfide concentration of a gas |
May. 2, 1978 |
| 4085971 |
Energy conserving mining system and method |
Apr. 25, 1978 |
| 4082146 |
Low temperature oxidation of hydrogen sulfide in the presence of oil shale |
Apr. 4, 1978 |
| 4078608 |
Thermal oil recovery method |
Mar. 14, 1978 |
| 4076078 |
Process for forming a coalate solution in-situ |
Feb. 28, 1978 |
| 4018280 |
Process for in situ retorting of oil shale |
Apr. 19, 1977 |
| 4016930 |
Oil well producing method and system |
Apr. 12, 1977 |
| 4008764 |
Carrier gas vaporized solvent oil recovery method |
Feb. 22, 1977 |
| 4007786 |
Secondary recovery of oil by steam stimulation plus the production of electrical energy and mechanical power |
Feb. 15, 1977 |
| 3999607 |
Recovery of hydrocarbons from coal |
Dec. 28, 1976 |
| 3990513 |
Method of solution mining of coal |
Nov. 9, 1976 |
| 3977469 |
Conservation of water for core flow |
Aug. 31, 1976 |
| 3964545 |
Processes for secondarily recovering oil |
Jun. 22, 1976 |
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