Retrievable well packer and anchor with latch release

Details Retrievable well packer and anchor with latch release Retrievable well packer and anchor with latch release

1975-02-05

1976-11-16

Purser, Ernest R.

Wells

Packers or plugs

With expanding anchor

166212, 166217, E21B 2306

Patent

active

039918262

ABSTRACT:
Disclosed is a well packer which is set by pressure applied through a tubing string which supports the packer within a surrounding well conduit. Once set, the packer is retrievable by either longitudinal or rotary movement of the supporting tubing string. Setting pressure drives opposed cone assemblies longitudinally toward each other to cause slip segments to move radially outwardly into anchoring engagement with the surrounding well conduit. The lowermost cone assembly is constructed in the form of a split ring and is equipped with friction teeth along its internal surface to retain the packer in its set position. A helical retrieving component secures the packer assembly to the central mandrel of the packer. Righthand rotation of the tubing string causes the outer body of the packer to unthread from the helical retrieving component secured to the mandrel which in turn unsets the packer. Alternatively, the helical retrieving means can be sheared by applying a straight vertical pull to the tubing string permitting the packer to be unset.

REFERENCES:
patent: 3119450 (1964-01-01), Evans
patent: 3244233 (1966-04-01), Villolan
patent: 3285343 (1966-11-01), Urbanosky
patent: 3364997 (1968-01-01), Current
patent: 3371716 (1968-03-01), Current
patent: 3391740 (1968-07-01), Edwards
patent: 3398795 (1968-08-01), Elliston
patent: 3659647 (1972-05-01), Brown

Affiliated with

Also associated with

Rating

Retrievable well packer and anchor with latch release does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retrievable well packer and anchor with latch release, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retrievable well packer and anchor with latch release will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-666261