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

Retrievable well packer

Patent ·
OSTI ID:6533182
A packer apparatus is described, comprising: a packer mandrel means; an expandable packing means disposed about the mandrel means; an upper shoe means, received about the mandrel means above the packing means, for compressibly engaging an upper end of the packing means. The upper shoe means has a radially inner annular dog receiving groove disposed therein. The groove is partially defined by an upward facing tapered wedging shoulder of the upper shoe means wherein the upper shoe means includes: a main housing member slidably received about the mandrel means. The main housing member includes: the tapered wedging shoulder defined on an upper end thereof; and a lower end surface compressibly engaging the upper end of the packing means.
Assignee:
Halliburton Co., Duncan, OK
Patent Number(s):
US 4664188
OSTI ID:
6533182
Country of Publication:
United States
Language:
English