Inflation packer method and apparatus
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United States of America Patent
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Feb 17, 1998
Grant Date -
N/A
app pub date -
Jul 15, 1996
filing date -
Jul 15, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An inflation packer method and apparatus comprising at inflatable packer bladder and an inflation fluid. The packer apparatus further comprises a packer mandrel having a central flow passage therethrough and an outer packer body which includes the inflatable packer bladder. A chemical expanding additive is employed to expand the inflation fluid used to inflate the packer bladder. An annular inflation fluid passageway is defined between the mandrel and the body. Inflation fluid passes from the central flow passage into the annular inflation fluid passageway to inflate the inflatable packer bladder. The mandrel has grooves defined on an outer surface thereof. The chemical expanding additive is placed in grooves defined on the outer surface of the mandrel so that the expanding additive is dispersed into the fluid passing into the annular passageway.
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