Class 277/339 - Expanded by wedging member

Subclass of Class 277 - Seal for a joint or juncture
Definition: Packing sleeve includes a member having an inclined surface
No. of patents: 28
Last issue date: 03/15/2011

Number	Title	Issue Date
7905492	Self-boosting wedge tubing-to-casing seal A seal and/or anchoring arrangement includes a first perimetrically closed wedge, a second perimetrically closed wedge. An actuator is in operable communication with one of the first and second wedges. A frustoconical surface is present at a radially inwardly most l...	03/15/2011
7434627	Method and apparatus for friction reduction in a downhole tool A system for facilitating the insertion of a tool into a wellbore, especially a non-vertical wellbore. In one embodiment a tool is fixable in a wellbore and includes centralizing, friction-reducing members that serve to keep the body of the tool off the walls of the...	10/14/2008
7434617	Cup tool with three-part packoff for a high pressure mandrel A cup tool for use with a high-pressure mandrel of a wellhead isolation tool has a three-part packoff assembly that slides over a cup tool tube from an unset position to a set position. The three-part pack off assembly includes an elastomeric cup, a rigid alignment ...	10/14/2008
7228896	Ribbed sealing element and method of use A device for sealing and anchoring within a tubular member. The device comprises a top swage member disposed within the tubular member, with the top swage member having a longitudinal center of axis. Also included is a first sealing member disposed about the top swa...	06/12/2007
7165622	Packer with metal sealing element A packer, and operation of the same, which forms elastomeric seals and non-elastomeric seals. The packer may be constructed from a non-elastomeric tubular core having a frustoconical shaped inner diameter. The outer diameter of the core may be substantially smooth a...	01/23/2007
7108065	Technique for preventing deposition products from impeding the motion of a movable component A technique for preventing mineral, mineral salt and other deposits from impeding the motion of movable components in a submerged environment. The technique allows for a movable component in a submerged environment to move freely beneath a deformable member. As the ...	09/19/2006
7080691	Plunger lift tool and method of using the same A plunger lift tool and method of using the same in a well having tubing comprising a tubular housing, having a top portion, a bottom portion, and said housing further defines a passageway therein; a positioning means attached to said housing for removably installin...	07/25/2006
7080687	Anti-rotation method and apparatus for limiting rotation of cementing plugs An apparatus for preventing or limiting the rotation of cementing plugs in a casing string during drillout. The apparatus includes an outer housing with a sleeve disposed therein. The sleeve has an inner surface configured to engage cementing plugs received therein ...	07/25/2006
7059412	Technique for preventing deposition products from impeding the motion of a movable component A technique for preventing mineral, mineral salt and other deposits from impeding the motion of movable components in a submerged environment. The technique allows for a movable component in a submerged environment to move freely beneath a deformable member. As the ...	06/13/2006
7044231	Expandable packer with anchoring feature An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the out...	05/16/2006
7011312	Gland packing and sealing apparatus comprising it To provide a novel gland packing and a sealing apparatus comprising this, wherein the gland packing displays high and stable sealability for a stem and an inner wall surface of a stuffing box even for uses further requesting the movability (rotation and reciprocatin...	03/14/2006
6969070	Split carrier annulus seal assembly for wellhead systems The seal assembly 10 seal between a subsea wellhead housing 12 and a casing hanger 16. A metal seal body 20 includes fingers 32 and 34 and one or more elastomeric seals 38. An upper seal body 64 may include thr...	11/29/2005
6962206	Packer with metal sealing element A packer, and operation of the same, which forms elastomeric seals and non-elastomeric seals. The packer may be constructed from a non-elastomeric tubular core having a frustoconical shaped inner diameter. The outer diameter of the core may be substantially smooth a...	11/08/2005
6769491	Anchoring and sealing system for a downhole tool The present invention generally relates to a method and apparatus for sealing an annulus in a wellbore. In one aspect, the apparatus is an anchoring and sealing system for a downhole tool such as a bridge plug, packer, or frac-plug. The sealing system comprises of a...	08/03/2004
6746213	Pad plunger assembly with concave pad subassembly A pad plunger assembly, for use in gas well tubing, includes an elongated mandrel having opposite ends and a longitudinal axis extending between the opposite ends, a pair of opposite end members each attached to one of the opposite ends of the mandrel, and a seal-fo...	06/08/2004
6637750	Alternative metallic seals A metallic sealing element comprises a generally tubular body having first and second opposed ends and a center section which is located between the first and second ends. In use the sealing element is compressible to bring the first and second ends towar...	10/28/2003
6406028	Seal stack A seal stack includes one or more first seals that are adapted to seal in at least a first range of temperatures. The seal stack also includes a second seal that is adjacent to at least one of the first seals. The second seal is adapted to seal in at leas...	06/18/2002
6343791	Split mesh end ring The present invention generally provides a seal assembly, or seal array, having a seal body and one or more non-extrusion end rings to prevent or minimize extrusion of the seal body between either the packer assembly and the casing or between the packer a...	02/05/2002
6276690	Ribbed sealing element and method of use A device for sealing and anchoring within a tubular member. The device includes a top swage member disposed within the tubular member, with the top swage member having a longitudinal center of axis. Also included is a first sealing member disposed about t...	08/21/2001
6203020	Downhole packer with element extrusion-limiting device A sealing element system for a downhole packer reduces the tendency of the elements to extrude. Mechanical limits are provided to the amount of force that can be passed onto the uppermost and lowermost components of a sealing element system by providing a...	03/20/2001
6176310	Assembly for sealing the annulus between concentric cylindrical surfaces An assembly for sealing the annular space between the inner cylindrical surface of a tubular member and the outer surface of a cylindrical member having a separate upper and lower seal member each of which are sealably and translatably positioned on the c...	01/23/2001
5997003	Annular sealing assembly and methods of sealing Methods and apparatus are described for improved sealing across an annular space between facing sealing surfaces. Methods for mechanically setting and pressure energizing sealing ring assemblies are also described. In one aspect, several sealing ring asse...	12/07/1999
5961123	Metal back-up ring for downhole seals A sealing element for a packer or bridge plug or other downhole tool is illustrated which employs the use of back-up rings above and/or below a resilient seal. The various sleeves which are moved with respect to each other to compress the sealing element ...	10/05/1999
5226492	Double seals packers for subterranean wells A well installation is disclosed which has a production casing set in a subterranean well; a production tubing disposed within the production casing; an annular space defined between the production casing and the production tubing; and a packer for sealin...	07/13/1993
5215145	Wedge-set sealing flap for use in subterranean wellbores The preferred embodiment of the wedge-set sealing flap of the present invention includes a cylindrical mandrel disposed about a central longitudinal axis, the mandrel defining interior and exterior surfaces. At least one of the interior and exterior surfa...	06/01/1993
4628997	Packoff A packoff having a metal energizing ring, mounted around a packoff mandrel. A pair of elastomeric packing elements are also mounted around the packoff mandrel, one on each side of the energizing ring. When the packoff is set, the packing elements are forc...	12/16/1986
4573537	Casing packer A well casing packer includes a seal mechanism, mounted on a mandrel. The casing packer comprises a seal element and a wedge member for driving the seal element radially outward against a well casing by applying radial forces to the seal element. This wed...	03/04/1986
4191383	Inflatable packer and method of constructing same The inflatable packer element of the present invention includes an inflatable bladder means having a braided wire reinforcing element. An end of the reinforcing element is received between a tapered surface of an annular anchor means and a tapered surface...	03/04/1980

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Class 277/339 - Expanded by wedging member