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1. (WO2014205208) OXY-BOILER WITH STEAM ASSISTED PRODUCTION

Pub. No.:    WO/2014/205208    International Application No.:    PCT/US2014/043171
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Fri Jun 20 01:59:59 CEST 2014
IPC: E21B 43/24
Applicants: CONOCOPHILLIPS COMPANY
Inventors: MACADAM, Scott
SEABA, James P.
Title: OXY-BOILER WITH STEAM ASSISTED PRODUCTION
Abstract:
Methods and systems relate to an oxy-boiler used to generate steam injected into a well for assisting recovery of hydrocarbons. Operating conditions of a burner for the oxy-boiler limits oxygen contamination in a resulting flue gas for carbon dioxide recovery and limits size of the oxy-boiler, which may thus be located proximate the well rather at a central processing facility. In contrast to a direct steam generation approach where resulting carbon dioxide is mixed with steam, the oxy-boiler also enables selection of a desired level of carbon dioxide injection, which may be provided with the flue gas that may be exhausted from the oxy-boiler at an injection pressure.