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US 12,595,719 B2Granted
Efficient surface and downhole heating of injected carbon dioxide
AssigneeSchlumberger Technology Corporation
InventorsTerizhandur S. Ramakrishnan, Ozgur Senel
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Abstract
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.
Claims16
A method, comprising:
- obtaining a quantity of carbon dioxide for processing;
- heating the carbon dioxide from a below ambient temperature to a specified temperature, the heating including a preheating of the carbon dioxide at a surface elevation by solar radiation;
- transferring the heated carbon dioxide to a transfer arrangement;
- and
- transferring the heated carbon dioxide to an underground reservoir through use of the transfer arrangement.
2 more elements
An arrangement, comprising:
- a storage device for containing a quantity of carbon dioxide;
- a heating device configured to take at least a portion of the quantity of carbon dioxide for heating the carbon dioxide from a below ambient temperature to a specified temperature, the heating including a preheating of the carbon dioxide at a surface elevation by solar radiation;
- a control system configured to monitor a process of the heating of the carbon dioxide to the specified temperature;
- and
- an injection system to inject the heated carbon dioxide into a reservoir.
2 more elements
Dependencies are inferred from the claim text.