Ramping well bores
US6725922B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In accordance with one embodiment of the present invention, a subterranean drainage pattern for accessing a subterranean zone includes a main well bore extending from a surface well bore, located at a first end of the area, to a second end of the area. A first plurality of lateral well bores extend in spaced apart relation to each other from the main well bore to the periphery of the area on a first side portion of the main well bore. A second plurality of lateral well bores extend in spaced apart relation to each other from the main well bore to a periphery of the area on a second, opposite side portion of the main well bore. A first plurality of ramping well bores extend in spaced apart relation to each other from the main well bore toward a boundary of the subterranean zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.