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Class Information
Number: 166/269
Name: Wells > Processes > Distinct, separate injection and producing wells > Fluid injected from longitudinally spaced locations in injection well
Description: A process in which fluid material is introduced into the pores of the earth from locations in an input well which are spaced from each other along the longitudinal axis of the well, i.e., vertically spaced in the ordinary well having a vertical axis.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4709767 |
Production process for manufacturing low molecular weight water soluble acrylic polymers as drilling fluid additives |
Dec. 1, 1987 |
| 4669542 |
Simultaneous recovery of crude from multiple zones in a reservoir |
Jun. 2, 1987 |
| 4648455 |
Method and apparatus for steam injection in subterranean wells |
Mar. 10, 1987 |
| 4640355 |
Limited entry method for multiple zone, compressible fluid injection |
Feb. 3, 1987 |
| 4638864 |
Recovery of heavy crude oil from shallow formations by in situ combustion |
Jan. 27, 1987 |
| 4595057 |
Parallel string method for multiple string, thermal fluid injection |
Jun. 17, 1986 |
| 4566537 |
Heavy oil recovery |
Jan. 28, 1986 |
| 4540052 |
Generation of microorganism control composition and use thereof |
Sep. 10, 1985 |
| 4493369 |
Method of improved oil recovery by simultaneous injection of water with an in-situ combustion process |
Jan. 15, 1985 |
| 4458760 |
Oil recovery process for stratified high salinity reservoirs |
Jul. 10, 1984 |
| 4458761 |
Underreamer with adjustable arm extension |
Jul. 10, 1984 |
| 4437520 |
Method for minimizing subsidence effects during production of coal in situ |
Mar. 20, 1984 |
| 4397353 |
Method for vertical fracture growth control |
Aug. 9, 1983 |
| 4392530 |
Method of improved oil recovery by simultaneous injection of steam and water |
Jul. 12, 1983 |
| 4387770 |
Process for selective injection into a subterranean formation |
Jun. 14, 1983 |
| 4331202 |
Method for recovery of hydrocarbon material from hydrocarbon material-bearing formations |
May. 25, 1982 |
| 4274487 |
Indirect thermal stimulation of production wells |
Jun. 23, 1981 |
| 4248302 |
Method and apparatus for recovering viscous petroleum from tar sand |
Feb. 3, 1981 |
| 4194563 |
High conformance enhanced oil recovery process |
Mar. 25, 1980 |
| 4192382 |
High conformance enhanced oil recovery process |
Mar. 11, 1980 |
| 4184549 |
High conformance oil recovery process |
Jan. 22, 1980 |
| 4166502 |
High vertical conformance steam drive oil recovery method |
Sep. 4, 1979 |
| 4161983 |
High conformance oil recovery process |
Jul. 24, 1979 |
| 4161982 |
High conformance enhanced oil recovery process |
Jul. 24, 1979 |
| 4161218 |
High conformance enhanced oil recovery process |
Jul. 17, 1979 |
| 4160480 |
High conformance oil recovery process |
Jul. 10, 1979 |
| 4159037 |
High conformance oil recovery process |
Jun. 26, 1979 |
| 4109720 |
Combination solvent-noncondensible gas injection method for recovering petroleum from viscous petroleum-containing formations including tar sand deposits |
Aug. 29, 1978 |
| 4099568 |
Method for recovering viscous petroleum |
Jul. 11, 1978 |
| 4088188 |
High vertical conformance steam injection petroleum recovery method |
May. 9, 1978 |
| 4068715 |
Method for recovering viscous petroleum |
Jan. 17, 1978 |
| 4022278 |
Recovery of oil by a vertical miscible flood |
May. 10, 1977 |
| 3997004 |
Method for recovering viscous petroleum |
Dec. 14, 1976 |
| 3983939 |
Method for recovering viscous petroleum |
Oct. 5, 1976 |
| 3964547 |
Recovery of heavy hydrocarbons from underground formations |
Jun. 22, 1976 |
| 3957116 |
Fluid flow control in waterflood |
May. 18, 1976 |
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