Tertiary Recovery: The CO2 Process (Vertical versus Horizon)

All topics related to EOR like CO2, Thermal hydrocarbon Recovery, WAG, SAGD, Microbial, Polymer flooding ....etc

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FANARCO
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Tertiary Recovery: The CO2 Process (Vertical versus Horizon)

Post by FANARCO »

1 CO2 is injected into the reservoir via injection wells.

2 The CO2 reduces the viscosity of the trapped oil so it flows more easily.

3 Water can be injected in alternating cycles with CO2 to sweep the oil to the producing wells.

4 Production wells pump the oil, along with CO2, produced water and any associated natural gas to the surface.

5 The CO2 and associated natural gas are separated at the production satellite facility. Natural gas liquids are extracted and sold and the CO2 is recycled for reinjection.

6 The oil and produced water are separated at the central tank battery. The oil is piped to holding tanks where it is metered and sold.

7 The produced water is transported to the central water injection station and is pressurized for reinjection.
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Re: Tertiary Recovery: The CO2 Process (Vertical versus Hori

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In Vertical CO2 flooding, the CO2 is injected in the crest (top) of the reservoir and the production should be from another well draining from Oil zone (bank) withing the same reservoir


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Re: Tertiary Recovery: The CO2 Process (Vertical versus Hori

Post by FANARCO »

In Horizontal CO2 flooding, the CO2 alternating Water is injected in the reservoir forming a miscible zone to push the oil bank to the producing well.


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