Wellbore cleaning method and apparatus

United States of America Patent

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Apr 2, 2013
Grant Date
Jan 29, 2009
app pub date
Jun 29, 2006
filing date
Jul 2, 2005

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Abstract

This invention relates to well cleaning methods and apparatus. In particular, this invention relates to a method of drilling and cleaning a wellbore.

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Patent Owner(s)

Patent Owner	Address
SPECIALISED PETROLEUM SERVICES GROUP LIMITED	WESTHILL ABERDEEN AB32 6UF

International Classification(s)

E21B:EARTH OR ROCK DRILLING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Telfer, George	Aberdeen, GB	69	1271

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Wellbore cleaning method and apparatus

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United States of America Patent

11994486

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PATENT NO	8408307
APP PUB NO	20090025927A1
SERIAL NO	11994486
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 02, 2013	US,8408307,B2 US8408307B2	GRANTED PATENT AS SECOND PUBLICATION
January 29, 2009	US,20090025927,A1 US20090025927A1	FIRST PUBLISHED PATENT APPLICATION

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11994486

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