SYSTEM AND METHOD FOR ACCELERATED SOLVENT RECOVERY
The invention relates to a system and method for steam assisted gravity drainage of hydrocarbons having increased solvent recovery thus improving the economics of steam-only injection processes such as steam assisted gravity drainage while reducing environmental impact. Embodiments aid the condensat...
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| creator | Kaviani, Danial BAHONAR, Medhi |
| description | The invention relates to a system and method for steam assisted gravity drainage of hydrocarbons having increased solvent recovery thus improving the economics of steam-only injection processes such as steam assisted gravity drainage while reducing environmental impact. Embodiments aid the condensation of solvent either by shutting-in or reducing the steam injection or by injecting a secondary lighter and cheaper solvent post solvent-steam co-injection, after which, normal steam injection at optimized operating conditions is restarted and continued until blow down while primary solvent recovery is continued, thus significantly accelerating and maximizing the recovery of solvent injected without affecting the long term cumulative bitumen production. |
| format | Patent |
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| subjects | ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS POLISHES |
| title | SYSTEM AND METHOD FOR ACCELERATED SOLVENT RECOVERY |
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