Use of surface-modified nanoparticles for oil recovery

United States of America Patent

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Apr 25, 2006
Grant Date
Nov 27, 2003
app pub date
May 20, 2003
filing date
May 24, 2002

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Expired

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Abstract

The present invention provides the use of surface-modified nanoparticles in fluids used to recover hydrocarbon from underground formations. The use of surface-modified nanoparticles in such fluids provides foams that are stable under pressure yet have a shorter foam lifetime than typical surfactant-stabilized foams after the pressure is released or lowered.

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3M INNOVATIVE PROPERTIES COMPANY	P O BOX 33427 ST PAUL MN 55133-3427

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C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....

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Inventor Name	Address	# of filed Patents	Total Citations
Baran, Jr Jimmie R	Prescott, WI	16	375
Cabrera, Oswaldo J	Edo. Vargas, VE	1	269

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Use of surface-modified nanoparticles for oil recovery

Number of patents in Portfolio can not be more than 2000

United States of America Patent

10441721

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PATENT NO	7033975
APP PUB NO	20030220204A1
SERIAL NO	10441721
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 25, 2006	US,7033975,B2 US7033975B2	GRANTED PATENT AS SECOND PUBLICATION
November 27, 2003	US,20030220204,A1 US20030220204A1	FIRST PUBLISHED PATENT APPLICATION

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10441721

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