Method for accelerating start-up for steam-assisted gravity drainage (SAGD) operations
US8528639B2 · kind B2 · utility
8Cited by
8References
15Claims
0Family size
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Key dates
| Filing date | Mar 7, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2408
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for accelerating start-up for steam assisted gravity drainage operations comprising the steps of: forming a steam-assisted gravity drainage production well pair comprising an injection well and a production well within a formation; beginning a pre-soaking stage by soaking one or both of the wellbores of the well pair with a solvent; beginning a pre-heating stage by heating the wellbores of the well pair; beginning a squeezing stage by injecting steam into the wellbores of the well pair; and beginning steam-assisted gravity drainage production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.