Solvents and non-condensable gas coinjection
US10526881B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 1, 2015 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Oct 20, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2408
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Producing hydrocarbons by steam assisted gravity drainage, more particularly, utilizing conventional horizontal wellpair configuration of SAGD in conjunction of infill production well, to coinject oil-based solvents with steam initially and then switch to NCG-steam coinjection after establishing thermal communication between the thermal chamber and infill well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.