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

Running and setting tool for well packers

Patent ·
OSTI ID:6109806
A running and setting tool for a well packer is described. The packer has a tubular mandrel, upper and lower slip assemblies encircling the mandrel, upper and lower slip assemblies encircling the mandrel, a seal assembly located between the slip assemblies, and means on the mandrel including a setting sleeve for setting the slip assemblies. The tool consists of: a tubular setting tool mandrel having a first end portion arranged for connection to a string of pipe for lowering the setting tool and packer into a well bore and having a second end portion; releasable means on the setting tool mandrel releasably connecting the the setting tool mandrel to the packer mandrel, the releasable means includes a collet located on the setting tool mandrel, the collect having a plurality of collet portions arranged to engage the packer mandrel; a tubular setting member encircling the setting tool mandrel in telescoping relationship, the tubular setting member having a first end releasably connected to the first end of the setting tool mandrel and having a second end arranged for engagement with the setting sleeve of the packer; a variable volume chamber located between the setting tool mandrel and setting member; a port in the setting tool mandrel connecting the interior of the setting tool mandrel with the chamber; valve means in the second end portion of the setting tool mandrel for selectively preventing flow through the interior of the setting tool mandrel and causing flow into the chamber to move the setting member downwardly relative to the setting tool mandrel to set the slip assemblies; and, means on the second end portion of the setting tool mandrel for retaining the releasably means.
Assignee:
Dresser Industries, Inc., Dallas, TX
Patent Number(s):
US 4688634
OSTI ID:
6109806
Country of Publication:
United States
Language:
English