Cavity well system

United States of America Patent

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Aug 11, 2009
Grant Date
Nov 30, 2006
app pub date
May 31, 2005
filing date
May 31, 2005

priority date (Note)
Expired

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Abstract

A method for accessing a subterranean zone includes forming a subterranean cavity coupled to a land surface and forming a plurality of substantially horizontal bores extending at least partially into the subterranean zone and intersecting the cavity.

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Patent Owner(s)

EFFECTIVE EXPLORATION LLC

International Classification(s)

E21B:EARTH OR ROCK DRILLING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Pratt, Christopher A	Cochrane, Alberta, CA	10	72
Seams, Douglas P	Calgary, Alberta, CA	7	69

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Cavity well system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11141335

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PATENT NO	7571771
APP PUB NO	20060266521A1
SERIAL NO	11141335
DOCKET NO

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 11, 2009	US,7571771,B2 US7571771B2	GRANTED PATENT AS SECOND PUBLICATION
November 30, 2006	US,20060266521,A1 US20060266521A1	FIRST PUBLISHED PATENT APPLICATION

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11141335

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