Recovering energy from a subsurface formation

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United States of America Patent

PATENT NO 8327932
APP PUB NO 20100258265A1
SERIAL NO

12757632

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of recovering energy from a subsurface hydrocarbon containing formation includes introducing an oxidizing fluid in a wellbore positioned in at least a first portion of the formation. At least a portion of the first portion of the formation has been subjected to an in situ heat treatment process. The portion includes a treatment area having elevated levels of coke substantially adjacent the wellbore. The pressure in the wellbore is increased by introducing the oxidizing fluid under pressure such that the oxidizing fluid substantially permeates a majority of the treatment area and initiates a combustion process. Heat from the combustion process is allowed to transfer to fluids in the treatment area. Pressure decreases in the wellbore such that heated fluids from the portion of the formation are conveyed into the wellbore. The heated fluids are transferred to a heat exchanger configured to collect thermal energy.

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Patent Owner(s)

  • SHELL OIL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Karanikas, John Michael Houston, US 101 20250
McNeil,, III Robert Irving Cypress, US 2 216
Pollard, Richard Pearland, US 5 248

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