SYSTEMS AND METHODS FOR PROCESSING FLUIDS FOR RECOVERY OF VISCOUS HYDROCARBONS FROM A SUBTERRANEAN FORMATION BY A CYCLIC SOLVENT PROCESS

Methods of processing a production stream to collect solvent compounds and re-inject them back into a subterranean formation are described herein. The production stream is recovered from a subterranean formation after injecting the solvent compounds into the subterranean formation by a cyclic solven...

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Bibliographische Detailangaben
Hauptverfasser:	JITJAREONCHAI, JESSADA J, ROY, ANUP KUMAR, HEAD, BRIAN P, MOTAHHARI, HAMED R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	Methods of processing a production stream to collect solvent compounds and re-inject them back into a subterranean formation are described herein. The production stream is recovered from a subterranean formation after injecting the solvent compounds into the subterranean formation by a cyclic solvent process. The production stream includes a hydrocarbon liquid phase including heavy oil and the solvent compounds, a gas phase mixture, and a water liquid phase. The method includes separating a portion of the solvent compounds present in the production stream in a solvent separator to form a solvent vapor stream comprising the portion of the solvent compounds and a liquid hydrocarbon stream, processing the solvent vapor stream in a cooling subsystem to condense the portion of the solvent compounds into a liquid for re-injection into the subterranean formation and reinjecting the portion of the solvent compounds back into the subterranean formation in a liquid state.