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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 |
| 4926941 |
Method of producing tar sand deposits containing conductive layers |
May. 22, 1990 |
| 4889186 |
Overlapping horizontal fracture formation and flooding process |
Dec. 26, 1989 |
| 4886118 |
Conductively heating a subterranean oil shale to create permeability and subsequently produce oil |
Dec. 12, 1989 |
| 4883122 |
Method of coalbed methane production |
Nov. 28, 1989 |
| 4850429 |
Recovering hydrocarbons with a triangular horizontal well pattern |
Jul. 25, 1989 |
| 4848460 |
Contained recovery of oily waste |
Jul. 18, 1989 |
| 4815790 |
Nahcolite solution mining process |
Mar. 28, 1989 |
| 4756367 |
Method for producing natural gas from a coal seam |
Jul. 12, 1988 |
| 4754808 |
Methods for obtaining well-to-well flow communication |
Jul. 5, 1988 |
| 4744417 |
Method for effectively handling CO.sub.2 -hydrocarbon gas mixture in a miscible CO.sub.2 flood for oil recovery |
May. 17, 1988 |
| 4727937 |
Steamflood process employing horizontal and vertical wells |
Mar. 1, 1988 |
| 4718485 |
Patterns having horizontal and vertical wells |
Jan. 12, 1988 |
| 4706751 |
Heavy oil recovery process |
Nov. 17, 1987 |
| 4702314 |
Patterns of horizontal and vertical wells for improving oil recovery efficiency |
Oct. 27, 1987 |
| 4700779 |
Parallel horizontal wells |
Oct. 20, 1987 |
| 4696345 |
Hasdrive with multiple offset producers |
Sep. 29, 1987 |
| 4691771 |
Recovery of oil by in-situ combustion followed by in-situ hydrogenation |
Sep. 8, 1987 |
| 4688637 |
Method for induced flow recovery of shallow crude oil deposits |
Aug. 25, 1987 |
| 4685515 |
Modified 7 spot patterns of horizontal and vertical wells for improving oil recovery efficiency |
Aug. 11, 1987 |
| 4683951 |
Chemical flooding and controlled pressure pulse fracturing process for enhanced hydrocarbon recovery from subterranean formations |
Aug. 4, 1987 |
| 4662439 |
Method of underground conversion of coal |
May. 5, 1987 |
| 4662440 |
Methods for obtaining well-to-well flow communication |
May. 5, 1987 |
| 4662441 |
Horizontal wells at corners of vertical well patterns for improving oil recovery efficiency |
May. 5, 1987 |
| 4662438 |
Method and apparatus for enhancing liquid hydrocarbon production from a single borehole in a slowly producing formation by non-uniform heating through optimized electrode arrays surrounding th |
May. 5, 1987 |
| 4651825 |
Enhanced well production |
Mar. 24, 1987 |
| 4651824 |
Controlled placement of underground fluids |
Mar. 24, 1987 |
| 4646824 |
Patterns of horizontal and vertical wells for improving oil recovery efficiency |
Mar. 3, 1987 |
| 4645003 |
Patterns of horizontal and vertical wells for improving oil recovery efficiency |
Feb. 24, 1987 |
| 4641709 |
Controlling steam distribution |
Feb. 10, 1987 |
| 4640352 |
In-situ steam drive oil recovery process |
Feb. 3, 1987 |
| 4637461 |
Patterns of vertical and horizontal wells for improving oil recovery efficiency |
Jan. 20, 1987 |
| 4637462 |
Liquid mud ring control of underground liquids |
Jan. 20, 1987 |
| 4635720 |
Heavy oil recovery process using intermittent steamflooding |
Jan. 13, 1987 |
| 4633948 |
Steam drive from fractured horizontal wells |
Jan. 6, 1987 |
| 4628999 |
Process employing CO.sub.2 /CH gas mixtures for secondary exploitation of oil reservoirs |
Dec. 16, 1986 |
| 4621691 |
Well drilling |
Nov. 11, 1986 |
| 4620592 |
Progressive sequence for viscous oil recovery |
Nov. 4, 1986 |
| 4610301 |
Infill drilling pattern |
Sep. 9, 1986 |
| 4598770 |
Thermal recovery method for viscous oil |
Jul. 8, 1986 |
| 4597444 |
Method for excavating a large diameter shaft into the earth and at least partially through an oil-bearing formation |
Jul. 1, 1986 |
| 4586752 |
Solution mining process |
May. 6, 1986 |
| 4577688 |
Injection of steam foaming agents into producing wells |
Mar. 25, 1986 |
| 4557329 |
Oil recovery by in-situ combustion |
Dec. 10, 1985 |
| 4545435 |
Conduction heating of hydrocarbonaceous formations |
Oct. 8, 1985 |
| 4537252 |
Method of underground conversion of coal |
Aug. 27, 1985 |
| 4522260 |
Method for creating a zone of increased permeability in hydrocarbon-containing subterranean formation penetrated by a plurality of wellbores |
Jun. 11, 1985 |
| 4516636 |
Enhanced steam drive recovery of heavy oil |
May. 14, 1985 |
| 4512400 |
Miscible displacement drive for enhanced oil recovery in low pressure reservoirs |
Apr. 23, 1985 |
| 4508389 |
Apparatus and method for hydraulically mining unconsolidated subterranean mineral formations |
Apr. 2, 1985 |
| 4502733 |
Oil mining configuration |
Mar. 5, 1985 |
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