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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 |
| 4637465 |
Removal of phenols in groundwater after underground gasification of coal |
Jan. 20, 1987 |
| 4625800 |
Method of recovering medium or high gravity crude oil |
Dec. 2, 1986 |
| 4615391 |
In-situ combustion in hydrocarbon-bearing formations |
Oct. 7, 1986 |
| 4614234 |
Method of recovering coal values by combining underground coal gasification with surface coal liquefaction |
Sep. 30, 1986 |
| 4610304 |
Heavy oil recovery by high velocity non-condensible gas injection |
Sep. 9, 1986 |
| 4598772 |
Method for operating a production well in an oxygen driven in-situ combustion oil recovery process |
Jul. 8, 1986 |
| 4597441 |
Recovery of oil by in situ hydrogenation |
Jul. 1, 1986 |
| 4595056 |
Method for fully retorting an in situ oil shale retort |
Jun. 17, 1986 |
| 4593759 |
Method for the recovery of viscous oil utilizing mixtures of steam and oxygen |
Jun. 10, 1986 |
| 4589487 |
Viscous oil recovery |
May. 20, 1986 |
| 4573530 |
In-situ gasification of tar sands utilizing a combustible gas |
Mar. 4, 1986 |
| 4566536 |
Method for operating an injection well in an in-situ combustion oil recovery using oxygen |
Jan. 28, 1986 |
| 4566537 |
Heavy oil recovery |
Jan. 28, 1986 |
| 4557329 |
Oil recovery by in-situ combustion |
Dec. 10, 1985 |
| 4552214 |
Pulsed in situ retorting in an array of oil shale retorts |
Nov. 12, 1985 |
| 4552216 |
Method of producing a stratified viscous oil reservoir |
Nov. 12, 1985 |
| 4532991 |
Pulsed retorting with continuous shale oil upgrading |
Aug. 6, 1985 |
| 4532992 |
Method for recovering petroleum |
Aug. 6, 1985 |
| 4512403 |
In situ coal gasification |
Apr. 23, 1985 |
| 4509595 |
In situ combustion for oil recovery |
Apr. 9, 1985 |
| 4508170 |
Method of increasing the yield of hydrocarbons from a subterranean formation |
Apr. 2, 1985 |
| 4498537 |
Producing well stimulation method - combination of thermal and solvent |
Feb. 12, 1985 |
| 4495993 |
Method for in-situ recovery of energy raw materials by the introduction of cryogenic liquid containing oxygen |
Jan. 29, 1985 |
| 4495994 |
Thermal injection and in situ combustion process for heavy oils |
Jan. 29, 1985 |
| 4493369 |
Method of improved oil recovery by simultaneous injection of water with an in-situ combustion process |
Jan. 15, 1985 |
| 4491179 |
Method for oil recovery by in situ exfoliation drive |
Jan. 1, 1985 |
| 4483398 |
In-situ retorting of oil shale |
Nov. 20, 1984 |
| 4479540 |
Gasification of coal |
Oct. 30, 1984 |
| 4476927 |
Method for controlling H.sub.2 /CO ratio of in-situ coal gasification product gas |
Oct. 16, 1984 |
| 4474237 |
Method for initiating an oxygen driven in-situ combustion process |
Oct. 2, 1984 |
| 4470460 |
In situ retorting or oil shale |
Sep. 11, 1984 |
| 4469177 |
Recovery of viscous oil from asphaltic oil-containing formations |
Sep. 4, 1984 |
| 4465135 |
Fire flood method for recovering petroleum from oil reservoirs of low permeability and temperature |
Aug. 14, 1984 |
| 4458756 |
Heavy oil recovery from deep formations |
Jul. 10, 1984 |
| 4457374 |
Transient response process for detecting in situ retorting conditions |
Jul. 3, 1984 |
| 4454915 |
In situ retorting of oil shale with air, steam, and recycle gas |
Jun. 19, 1984 |
| 4454916 |
In-situ combustion method for recovery of oil and combustible gas |
Jun. 19, 1984 |
| 4452689 |
Huff and puff process for retorting oil shale |
Jun. 5, 1984 |
| 4450910 |
Thermal recovery of viscous oil from a dipping reservoir |
May. 29, 1984 |
| 4448251 |
In situ conversion of hydrocarbonaceous oil |
May. 15, 1984 |
| 4448252 |
Minimizing subsidence effects during production of coal in situ |
May. 15, 1984 |
| 4446921 |
Method for underground gasification of solid fuels |
May. 8, 1984 |
| 4444258 |
In situ recovery of oil from oil shale |
Apr. 24, 1984 |
| 4444257 |
Method for in situ conversion of hydrocarbonaceous oil |
Apr. 24, 1984 |
| 4444256 |
Method for inhibiting sloughing of unfragmented formation in an in situ oil shale retort |
Apr. 24, 1984 |
| 4441554 |
Method for the underground gasification of coal or browncoal |
Apr. 10, 1984 |
| 4441460 |
Apparatus for heating and utilizing fluids |
Apr. 10, 1984 |
| 4440227 |
Well completion for injecting high purity oxygen in a fire flooding process |
Apr. 3, 1984 |
| 4440224 |
Method of underground fuel gasification |
Apr. 3, 1984 |
| 4437520 |
Method for minimizing subsidence effects during production of coal in situ |
Mar. 20, 1984 |
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