Utilization of low BTU gas generated during in situ heating of organic-rich rock

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United States of America Patent

PATENT NO 8146664
SERIAL NO

12154256

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Abstract

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A method for utilizing gas produced from an in situ conversion process includes heating an organic-rich rock formation, for example an oil shale formation. The method may include producing a production fluid from the organic-rich rock formation where the production fluid has been at least partially generated as a result of pyrolysis of formation hydrocarbons located in the organic-rich rock formation. The method may include obtaining a gas stream from the production fluid, where the gas stream comprises combustible hydrocarbon fluids. The method may include separating the gas stream into a first composition gas stream and a second composition gas stream, where the composition of the first composition gas stream is a low BTU gas stream maintained in a substantially constant condition and passing the first composition gas stream through a gas turbine to form a gas turbine exhaust stream, where the gas turbine is connected to an electrical generator.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL UPSTREAM RESEARCH COMPANYSPRING TX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Griffith, Todd S Spring, US 3 49
Kaminsky, Robert D Houston, US 83 2899
Speed, C Stan Kerens, US 1 35
Starcher, Loren K Sugar Land, US 24 833
Symington, William A Houston, US 29 1671

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