Method and system for accessing subterranean deposits from a limited surface area
US6662870B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Mar 4, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system for accessing subterranean resources from a limited surface area includes a first well bore extending from the surface to the target zone. The first well bore includes an angled portion disposed between the target zone and the surface to provide an offset between a surface location of the first well bore and an intersection of the first well bore with the subterranean resource. The system also includes an articulated well bore extending from the surface to the target zone. The articulated well bore is offset from the first well bore at the surface and intersects the first well bore proximate the target zone. The system further includes a well bore pattern extending from the intersection of the first well bore and the articulated well bore in the target zone to provide access to the target zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.