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U.S. Department of Energy
Office of Scientific and Technical Information

Drillable, testing, treat, squeeze packer

Patent ·
OSTI ID:5747811
This patent describes a packer for use in a well. The packer is adapted for use as a testing packer, a treating packer and cementing packer and is being adapted to be easily retrievable from the well by drilling or milling operations. The packer consists of: a cast iron mandrel having a retrieving lug of the interior thereof, a bore therethrough having a diameter sufficiently large to allow the passage of casing type perforating guns, through tubing tools and the like therethrough, and a threaded bottom portion; a cast iron upper slip retainer slidably, releasably retained on a portion of the mandrel in a first position thereon by shear pins having a portion thereof engaging the mandrel and the upper slip retainer, the upper slip retainer being formed with an annular end surface thereon; upper slips, each slip of the upper slips having a portion engaging a recess of the plurality of recesses in the upper slip retainer, upper slips being retained in a first position about the mandrel having a portion of each upper slip of the upper slips engaging the annular end surface of the paper slip retainer by a frangible slip retainer band engaging a portion of each upper slip of the plurality of upper slips; a cast iron upper slip wedge slidably, releasably retained on the mandrel in a first position thereon by shear pins having a portion thereof engaging the mandrel and the upper slip wedge, the upper slip wedge having a portion thereof engaging a portion of the upper slips adapted to cause slips to move radially outwardly upon action of the packer to set the packer in the well.
Assignee:
Halliburton Co., Duncan, OK
Patent Number(s):
US 4834184
OSTI ID:
5747811
Country of Publication:
United States
Language:
English