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Class Information
Number: 166/245
Name: Wells > Processes > Specific pattern of plural wells
Description: A process in which an arrangement of more than two wells in plan view is claimed with enough specificity to indicate a pattern of wells (e.g., two lines of wells, one well surrounded by a ring of other wells, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4144935 |
Apparatus and method for in situ heat processing of hydrocarbonaceous formations |
Mar. 20, 1979 |
| 4140182 |
Method of extracting oil |
Feb. 20, 1979 |
| 4140180 |
Method for in situ heat processing of hydrocarbonaceous formations |
Feb. 20, 1979 |
| 4135578 |
Method of preparing a wet coal seam for production in situ |
Jan. 23, 1979 |
| 4129182 |
Miscible drive in heterogeneous reservoirs |
Dec. 12, 1978 |
| 4124071 |
High vertical and horizontal conformance viscous oil recovery method |
Nov. 7, 1978 |
| 4120357 |
Method and apparatus for recovering viscous petroleum from thick tar sand |
Oct. 17, 1978 |
| 4086961 |
Method of oil recovery employing enriched gas drive with control of evolved gas |
May. 2, 1978 |
| 4085797 |
Progressive displacement of residual water past shut-in wells preparatory to tertiary oil recovery |
Apr. 25, 1978 |
| 4084637 |
Method of producing viscous materials from subterranean formations |
Apr. 18, 1978 |
| 4082358 |
In situ solution mining technique |
Apr. 4, 1978 |
| 4074754 |
Method for producing geothermal energy and minerals |
Feb. 21, 1978 |
| 4072350 |
Multi-stage method of operating an in situ oil shale retort |
Feb. 7, 1978 |
| 4071087 |
Well construction |
Jan. 31, 1978 |
| 4037655 |
Method for secondary recovery of oil |
Jul. 26, 1977 |
| 4031956 |
Method of recovering energy from subsurface petroleum reservoirs |
Jun. 28, 1977 |
| 4026356 |
Method for in situ gasification of a subterranean coal bed |
May. 31, 1977 |
| 4020901 |
Arrangement for recovering viscous petroleum from thick tar sand |
May. 3, 1977 |
| 4015664 |
Shale oil recovery process |
Apr. 5, 1977 |
| 4005750 |
Method for selectively orienting induced fractures in subterranean earth formations |
Feb. 1, 1977 |
| 3999606 |
Oil recovery rate by throttling production wells during combustion drive |
Dec. 28, 1976 |
| 3997005 |
Method for control of subsurface coal gasification |
Dec. 14, 1976 |
| 3978920 |
In situ combustion process for multi-stratum reservoirs |
Sep. 7, 1976 |
| 3967853 |
Producing shale oil from a cavity-surrounded central well |
Jul. 6, 1976 |
| 3957116 |
Fluid flow control in waterflood |
May. 18, 1976 |
| 3948319 |
Method and apparatus for producing fluid by varying current flow through subterranean source formation |
Apr. 6, 1976 |
| 3946808 |
Process for recovering hydrocarbons from a subterranean reservoir by in situ combustion |
Mar. 30, 1976 |
| 3931856 |
Method of heating a subterranean formation |
Jan. 13, 1976 |
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