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Class Information
Number: 166/261
Name: Wells > Processes > In situ combustion > Injecting specific material other than oxygen into formation
Description: A process in which a material is placed into the pores of the earth, said material being other than oxygen, per se, or air.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4133382 |
Recovery of petroleum from viscous petroleum-containing formations including tar sands |
Jan. 9, 1979 |
| 4133381 |
Contacting treated oil shale with carbon dioxide to inhibit leaching |
Jan. 9, 1979 |
| 4130164 |
Process for coal gasification |
Dec. 19, 1978 |
| 4127171 |
Method for recovering hydrocarbons |
Nov. 28, 1978 |
| 4127172 |
Viscous oil recovery method |
Nov. 28, 1978 |
| 4126180 |
Method of enhancing yield from an in situ oil shale retort |
Nov. 21, 1978 |
| 4124071 |
High vertical and horizontal conformance viscous oil recovery method |
Nov. 7, 1978 |
| 4117886 |
Oil shale retorting and off-gas purification |
Oct. 3, 1978 |
| 4114690 |
Low-temperature oxidation method for the recovery of heavy oils and bitumen |
Sep. 19, 1978 |
| 4114688 |
Minimizing environmental effects in production and use of coal |
Sep. 19, 1978 |
| 4105072 |
Process for recovering carbonaceous values from post in situ oil shale retorting |
Aug. 8, 1978 |
| 4102397 |
Sealing an underground coal deposit for in situ production |
Jul. 25, 1978 |
| 4099567 |
Generating medium BTU gas from coal in situ |
Jul. 11, 1978 |
| 4099566 |
Vicous oil recovery method |
Jul. 11, 1978 |
| 4098336 |
Oil recovery process utilizing air and superheated steam |
Jul. 4, 1978 |
| 4096912 |
Methods for minimizing plastic flow of oil shale during in situ retorting |
Jun. 27, 1978 |
| 4093025 |
Methods of fluidized production of coal in situ |
Jun. 6, 1978 |
| 4092052 |
Converting underground coal fires into commercial products |
May. 30, 1978 |
| 4089375 |
In situ retorting with water vaporized in situ |
May. 16, 1978 |
| 4089372 |
Methods of fluidized production of coal in situ |
May. 16, 1978 |
| 4087130 |
Process for the gasification of coal in situ |
May. 2, 1978 |
| 4086960 |
Apparatus for hydrocarbon recovery from earth strata |
May. 2, 1978 |
| 4083404 |
Oil recovery process utilizing air and superheated steam |
Apr. 11, 1978 |
| 4074757 |
Method using lignosulfonates for high-temperature plugging |
Feb. 21, 1978 |
| 4072191 |
Fire floor process |
Feb. 7, 1978 |
| 4068715 |
Method for recovering viscous petroleum |
Jan. 17, 1978 |
| 4059152 |
Thermal recovery method |
Nov. 22, 1977 |
| 4057293 |
Process for in situ conversion of coal or the like into oil and gas |
Nov. 8, 1977 |
| 4048078 |
Oil recovery process utilizing air and superheated steam |
Sep. 13, 1977 |
| 4042027 |
Recovery of petroleum from viscous asphaltic petroleum containing formations including tar sand deposits |
Aug. 16, 1977 |
| 4042026 |
Method for initiating an in-situ recovery process by the introduction of oxygen |
Aug. 16, 1977 |
| 4036299 |
Enriching off gas from oil shale retort |
Jul. 19, 1977 |
| 4031956 |
Method of recovering energy from subsurface petroleum reservoirs |
Jun. 28, 1977 |
| 4032193 |
Coal disaggregation by basic aqueous solution for slurry recovery |
Jun. 28, 1977 |
| 4026358 |
Method of in situ recovery of viscous oils and bitumens |
May. 31, 1977 |
| 4026360 |
Hydrothermally forming a flow barrier in a leached subterranean oil shale formation |
May. 31, 1977 |
| 4026357 |
In situ gasification of solid hydrocarbon materials in a subterranean formation |
May. 31, 1977 |
| 4024915 |
Recovery of viscous oil by unheated air injection, followed by in situ combustion |
May. 24, 1977 |
| 4018481 |
Gasification of coal in situ |
Apr. 19, 1977 |
| 4010801 |
Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat |
Mar. 8, 1977 |
| 4006778 |
Thermal recovery of hydrocarbon from tar sands |
Feb. 8, 1977 |
| 4005752 |
Method of igniting in situ oil shale retort with fuel rich flue gas |
Feb. 1, 1977 |
| 3999607 |
Recovery of hydrocarbons from coal |
Dec. 28, 1976 |
| 3999606 |
Oil recovery rate by throttling production wells during combustion drive |
Dec. 28, 1976 |
| 3994343 |
Process for in situ oil shale retorting with off gas recycling |
Nov. 30, 1976 |
| 3993132 |
Thermal recovery of hydrocarbons from tar sands |
Nov. 23, 1976 |
| 3991828 |
Thermal recovery method |
Nov. 16, 1976 |
| 3987852 |
Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat |
Oct. 26, 1976 |
| 3986556 |
Hydrocarbon recovery from earth strata |
Oct. 19, 1976 |
| 3978925 |
Method for recovery of bitumens from tar sands |
Sep. 7, 1976 |
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