EFFICIENT SURFACE AND DOWNHOLE HEATING OF INJECTED CARBON DIOXIDE

EFFICIENT SURFACE AND DOWNHOLE HEATING OF INJECTED CARBON DIOXIDE

A process for injection of CO2 in high-temperature reservoirs, where preheating of the injected stream is necessary. The process comprises producing hot water from a distant well, using the produced hot water in a surface heat exchanger for heating CO2. Alternatively, the produced hot water may be u...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RAMAKRISHNAN, Terizhandur S, SENEL, Ozgur
Format: Patent
Sprache:eng ; fre ; ger
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
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Beschreibung
Zusammenfassung:A process for injection of CO2 in high-temperature reservoirs, where preheating of the injected stream is necessary. The process comprises producing hot water from a distant well, using the produced hot water in a surface heat exchanger for heating CO2. Alternatively, the produced hot water may be used in a wellbore heat exchanger to heat the incoming CO2 as a counter-current heat exchanger. When the available CO2 is substantially cooler than the ambient, preheating via solar thermal is desirable prior to feeding to the heat exchanger.