Method for increasing fluid recovery from multiple lateral wellbores drilled through a subsurface formation
US8517091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Nov 26, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for creating a drainage network in a subsurface rock formation includes drilling a first plurality of wellbores extending laterally in a first direction. Each wellbore includes a main portion and an extension portion extending therefrom. A second plurality of wellbores is drilled laterally in a second direction substantially opposed to the first direction. Each of the second plurality of wellbores includes a main portion and an extension portion extending therefrom. The extension portions of the first plurality of wellbores are disposed adjacent main portions of the second plurality of wellbores. The extension portions of the second plurality of wellbores are disposed adjacent main portions of the first plurality of wellbores. Each main portion is hydraulically isolated from each associated extension portion. Each main portion of each of the first and second plurality of wellbores is stimulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.