Tubing resettable well packer

Patent · Tue Jun 14 04:00:00 EDT 1988

OSTI ID:6681392

Pettigrew, T L; Wright, C L

This patent describes a well packer having a tubular mandrel extending therethrough adaptable for connection to a tubing string fro manipulation of the tubing string to shift a slip assembly between setting and transport conditions relative to resilient means for setting, unsetting and resetting of the slip assembly against the casing in a well without the necessity of pulling the tubing string from the well, the slip assembly including a reaction member with a friction element engageable with the well casing for reaction forces to be transmitted between the packer and the tubing string upon manipulation of the tubing string, the improvement comprising: an adapter extending through the mandrel with one end connectable to a wireline setting device an an opposite and frangibly connected to the slip assembly for first setting a slip assembly with the wireline setting device, the slip assembly being releasably supported in an alternate transport condition relative to the resilient means for the first setting of the slip assembly; means for releasing the friction element as an incident to the first setting of the slip assembly the packer also having the tubular mandrel supporting the slip assembly and reaction member therein. The adapter is supported in telescoping relationship with the mandrel and having a frangible portion on the adapter connected to a pump-out plug releasably located in the packer closing the tubular mandrel.

• Assignee: Dresser Industries, Inc., Dallas, TX
• Patent Number(s): US 4750564
• OSTI ID: 6681392
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FASTENERS
INSTALLATION
JOINTS
MECHANICAL STRUCTURES
NATURAL GAS WELLS
OIL WELLS
PACKINGS
PIPE JOINTS
PIPES
SLEEVES
SUPPORTS
WELL SERVICING
WELLS