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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
CONOCO INC	P O BOX 1267 PONCA CITY OK 74603 UNITED STATES OF AMERICA

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Allison, Joe D	Ponca City, OK	74	919
# of filed Patents : 74 Total Citations : 919

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Patent Citation Ranking

• 106 Citation Count
• E21B Class

• 97.11 % this patent is cited more than
• 22 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2003/0070,808

Use of syngas for the upgrading of heavy crude at the wellhead

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Abstract

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The present system may be used to hydroprocess heavy crude oil at the wellhead, effectively lowering the viscosity and removing contaminants such as sulfur, nitrogen and metal contents. The hydrogen source for hydroprocessing is the separated hydrogen product from the methane produced from a syngas plant.

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Description

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