Wells – Packers or plugs – Spaced sealing portions
Patent
1991-05-21
1993-03-23
Neuder, William P.
Wells
Packers or plugs
Spaced sealing portions
166185, E21B 33124
Patent
active
051955849
ABSTRACT:
An improved sealing is provided for repairing a breach of down hole casing integrity, while maintaining substantially unrestricted annular fluid communication through the length of the well bore which comprises a casing sleeve supported on a tubing string for providing an alternate liquid or gas flow route about the tubing string at the defective portion of the casing. The casing sleeve is disposed between and connected to a first and second seal support housing assembly, each of which has an internal bore and a retaining end portion dimensioned to prevent a tubing collar of the tubing string from passing therethrough. Resilient casing engaging members are supported on each of the first and second seal support housing assemblies such that the resilient casing engaging members provide an effective seal between the first and second seal support housing assemblies and an adjacently disposed internal wall of the casing. The first and second seal support housing assemblies also having fluid communication slots disposed between the resilient casing engaging members and the retaining end portion of the first and second seal support housing assemblies to provide substantially unrestricted annular fluid communication about the tubing string especially around tubing upset and collar which extends through the length of the well bore.
REFERENCES:
patent: 4258788 (1981-03-01), Patton et al.
patent: 4961465 (1990-10-01), Brandell
Burdick Glen M.
McCarthy Bill D.
Neuder William P.
Rouse Nicholas D.
LandOfFree
Sealing apparatus for repairing breaches in casing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealing apparatus for repairing breaches in casing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing apparatus for repairing breaches in casing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1345717