High temperature packer for well conduits
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1987
Grant Date -
N/A
app pub date -
Dec 6, 1985
filing date -
Dec 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A packer for effecting steam treatment of a production formation of a subterranean well comprises an insulated mandrel which is slidably inserted within the bore of an inner tubular body assembly. An outer operative tubular assembly surrounds the inner assembly and mounts a plurality of drag blocks, upper and lower cone elements, a plurality of radially displaceable slips cooperating with the upper and lower cone elements, and an outer packing element fabricated by an assemblage of high temperature resistant, non-resilient seal elements formed primarily of graphite. An inner packing element is provided in the inner tubular body assembly, utilizing additional high temperature resistant, non-resilient seal elements formed primarily of graphite, which sealingly engages the insulated mandrel. The packer is set by rotation of the tubing string to position a J-pin in the axially elongated portion of a J-slot, followed by upward movement of the tubing string to effect compression of the external packing element to form a seal with the casing wall and concurrently, expansion of the slips by the upper and lower cones. A ratcheting element mounted in the same ring as the J-pin traps the axial forces within the packing element and the interengaged cones and slips.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully