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

Retrievable well bore tubular member packer arrangement and method

Patent ·
OSTI ID:6916001

This patent describes a well bore tubular member retrievable packer arrangement for connection with either mechanically, hydraulically or wire line explosively actuated setting tool means retrievably supported on a setting string to sealably secure the packer arrangement with the well bore tubular member to communicate with a production string and which packer arrangement may be retrieved by a grapple tool supported on either coupled pipe, coiled pipe or a wireline. Also described is a method of positioning a retrievable packer arrangement in a well bore tubular member by a setting string. The packer arrangement includes an inner tubular member connected with the setting string, an outer tubular member with external engageable release surface means adjacent its upper end and operable to release the set packer arrangement, packer means and slip means for sealably securing with the well bore tubular member, lock means to lock the packer arrangement in sealing relation with the well bore tubular member and which lock means can be unlocked by the external release surface means.

Assignee:
Texas Iron Works, Inc., Houston, TX
Patent Number(s):
A; US 4898245
Application Number:
PPN: US 7-314158A
OSTI ID:
6916001
Country of Publication:
United States
Language:
English