Producer snorkel or injector toe-dip to accelerate communication between SAGD producer and injector
US9033039B2 · kind B2 · utility
4Cited by
7References
11Claims
0Family size
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Key dates
| Filing date | Feb 22, 2013 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Apr 17, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2406
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and systems relating to steam assisted gravity drainage (SAGD) utilizing well pairs that are at least initially in fluid communication through drilled bores toward their toe ends. At least one of a horizontal injection well and horizontal production well of such a well pair includes a hooked length toward toe ends of each other connecting said injection well and said production well. The methods and systems improve SAGD oil production, reduce SAGD start-up time and costs, and improve overall SAGD performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.