发明名称 |
STEAM ASSISTED GRAVITY DRAINAGE WITH ADDED OXYGEN ("SAGDOX") IN DEEP RESERVOIRS |
摘要 |
A process to recover hydrocarbons, from a hydrocarbon reservoir having a bottom, using a substantially horizontal production well, the substantially horizontal production well having a toe and a heel, the process including:
(a) injecting oxygen into the hydrocarbon reservoir, the horizontal production well having at least one perforation zone for contact with the reservoir;(b) injecting steam into the hydrocarbon reservoir; the oxygen producing in situ heat and in situ carbon dioxide by combustion and the steam producing in situ heat by conduction and condensation; the in situ carbon dioxide dissolving into the liquid hydrocarbon, lowering its viscosity;(c) recovering the reservoir liquid hydrocarbons of lowered viscosity using the substantially horizontal production well; and(d) optionally conveying the recovered liquid hydrocarbons to the surface; where the process is absent a removal step of any non-condensable gas from the reservoir. |
申请公布号 |
US2016265327(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201615157948 |
申请日期 |
2016.05.18 |
申请人 |
NEXEN ENERGY ULC |
发明人 |
KERR Richard Kelso |
分类号 |
E21B43/24 |
主分类号 |
E21B43/24 |
代理机构 |
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代理人 |
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主权项 |
1. A process to recover hydrocarbons, from a hydrocarbon reservoir having a bottom, using a substantially horizontal production well, said substantially horizontal production well having a toe and a heel, said process comprising:
(a) injecting oxygen into said hydrocarbon reservoir, said horizontal production well having at least one perforation zone for contact with said reservoir; (b) injecting steam into said hydrocarbon reservoir; said oxygen producing in situ heat and in situ carbon dioxide by combustion and said steam producing in situ heat by conduction and condensation; said in situ carbon dioxide dissolving into the liquid hydrocarbon, lowering its viscosity; (c) recovering said reservoir liquid hydrocarbons of lowered viscosity using said substantially horizontal production well; and (d) optionally conveying said recovered liquid hydrocarbons to the surface; wherein said process is absent a removal step of any non-condensable gas from said reservoir. |
地址 |
Calgary CA |