MILLABLE BRIDGE PLUG SYSTEM
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Dec 20, 2012
filing date -
Dec 20, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A millable bridge plug system includes a mandrel, a sealing member, ring members, cone assemblies, and slip devices. The sealing member, ring members, cone assemblies and slip devices are positioned on and around the mandrel. Ring members push against an upper end and lower end of the sealing member. The sealing member has a surface interface contacting each of the ring members so that pressure from the ring members is exerted according to contact along the surface interface. The surface interface can have a curvature or be a double radiused surface. The ring members are pushed against the cone assemblies, and the ring members have ring surface interfaces contacting the cone assemblies. The pressure from the cone assemblies is exerted according to contact along the ring surface interface of the ring members. Coordination of the surface interfaces and ring surface interfaces control pressure to insure improved sealing against the wellbore.
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