Low pressure-set packer
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United States of America Patent
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Dec 25, 2012
Grant Date -
Jan 17, 2008
app pub date -
Nov 27, 2006
filing date -
Jun 2, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A packer tool for use in a wellbore having a bottomhole pressure p, includes: a mandrel assembly; a stabilizer on the mandrel assembly, for releasably engaging the wellbore; a packing element in an annular recess having a floor and two facing walls, the annular recess being transversely compressible into a compressed position and disposed about the mandrel assembly; and a piston assembly for driving compression of the packing element annular recess. The piston assembly has a plurality of piston faces moveable together in the same direction, the plurality of piston faces having a total piston face surface area a such that an application of pressure of p′ to the piston assembly generates a force f greater than p.
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