Permanent anchor for use with through tubing bridge plug

Details Permanent anchor for use with through tubing bridge plug Permanent anchor for use with through tubing bridge plug

1987-03-23

1988-12-20

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166133, 166386, E21B 33124

Patent

active

047919884

ABSTRACT:
A through tubing bridge plug is disclosed. In the preferred and illustrated embodiment, a central hollow tube having a passage therein supports the external parts. The central passage terminates top and bottom with openings or passages. At the top end, a sleeve valve mechanism originally pinned in an open position is installed. When the installation is completed, the sleeve valve is closed by a sequence of operations to permanently close the flow path. The device is set and anchored by applying a relative downward force to an external sleeve thereby deploying multiple link toggle means to lock the device in location, additionally deploying a upwardly facing petal basket to receive a charge of sand and cement to form a plug, and also deploying a centralizer. The device is installed at a specified elevation by anchoring the toggle means to prevent movement, deploying the petal basket to hold sand and cement for curing, locating the device in the casing by a centralizer, and bypassing fluid around the curing sand and cement through a central tubing opening below and above the uncurred materials. The final step includes closing a sleeve valve means to prevent further flow through the device.

REFERENCES:
patent: 3064734 (1962-11-01), Toeke
patent: 3282347 (1966-11-01), Chenoveth
patent: 3460624 (1969-08-01), Aitken et al.
patent: 3891034 (1975-06-01), Owen et al.
patent: 4671356 (1987-06-01), Barker et al.

Affiliated with

Also associated with

Rating

Permanent anchor for use with through tubing bridge plug does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Permanent anchor for use with through tubing bridge plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent anchor for use with through tubing bridge plug will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1905187