Well packer valve arrangement
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United States of America Patent
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Sep 6, 1983
Grant Date -
N/A
app pub date -
Aug 13, 1982
filing date -
Aug 13, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve system for use in inflating packers mounted on mandrels. The valve system uses one or more valves to permit, through the use of seals, the flow of fluid from the interior of a tubular mandrel to the interior of the inflatable packer when pressure applied in the mandrel exceeds at least a minimum pressure. The differential pressure across reciprocating seals is minimized through exposure of one or both sides, directly or indirectly, to the external pressure of the mandrel and packer, the exposure including the use of a check valve to permit flow from the exterior of the mandrel.
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