Shear valve

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United States of America Patent

PATENT NO 9580991
APP PUB NO 20140130893A1
SERIAL NO

14116134

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Importance

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Abstract

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A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.

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Patent Owner(s)

Patent OwnerAddress
PETROLEUM TECHNOLOGY COMPANY ASSLETTESTRANDVEIEN 13 STAVANGER 4032

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harestad, Kristian Randaberg, NO 13 98
Skorve, Helge Stavanger, NO 2 6
Tveiten, Magnar Sandnes, NO 15 135

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