AUTOMATIC SAFETY VALVE

A self-contained, automatic valve assembly designed to be anchored at the subsurface location within a well casing which extends into a subterranean formation employed to store pressurized gas. The valve is supported by a retrievable packer which anchors the valve within the casing and forms a seal...

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Bibliographic Details
Main Author GARRETT H,US
Format Patent
LanguageEnglish
Published 09.04.1974
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Summary:A self-contained, automatic valve assembly designed to be anchored at the subsurface location within a well casing which extends into a subterranean formation employed to store pressurized gas. The valve is supported by a retrievable packer which anchors the valve within the casing and forms a seal to force the gas to flow through the valve. Operation of the valve is governed by a bellows control which moves a valve stem to closed position to terminate flow through the valve in response to a drop in casing pressure.
Bibliography:Application Number: US19710153617