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| Number | Title | Issue Date |
| 8186446 | Method and apparatus for a packer assembly A method and apparatus for setting a packer assembly having an upper packer and a lower packer in a wellbore in a single trip into a wellbore is provided. The packer assembly is configured to be retrieved from the wellbore using a retrieval tool in a single trip int... | 05/29/2012 |
| 8181708 | Water swelling rubber compound for use in reactive packers and other downhole tools Through the combination of at least two polymer families, and the optimization of other components, a rubber compound has been developed for use in downhole applications that will swell in water-based fluids. A cellulose component, such as carboxy methyl cellulose (... | 05/22/2012 |
| 8157019 | Downhole swellable sealing system and method Disclosed herein is a downhole tubular sealing system. The system includes, a tubular runnable in a downhole wellbore, a swellable seal disposed at the tubular that is sealable with the downhole wellbore when swelled, and at least one releasable member in operable c... | 04/17/2012 |
| 8151895 | Eutectic salt inflated wellbore tubular patch Systems and methods for patching a desired section of wellbore casing or another tubular member. A patch assembly is provided which includes a tubular patch sub which is radially surrounded by an inflatable boot. A setting tool is used to set the patch assembly with... | 04/10/2012 |
| 8136605 | Swellable packer with fluid supply A downhole apparatus, such as a wellbore packer, is provided with a swellable member and a fluid supply assembly. The fluid supply assembly is to receive fluid and expose the swellable member to the fluid to cause expansion of the swellable member, and comprises a s... | 03/20/2012 |
| 8127859 | Use of swellable material in an annular seal element to prevent leakage in a subterranean well A method of sealing an annulus formed between a casing string and a surface in a well may include: positioning a seal element in the annulus with a swellable material of the seal element positioned between the casing string and the surface; and flowing cement throug... | 03/06/2012 |
| 8113293 | Single packer structure for use in a wellbore A technique involves collecting formation fluids through a single packer having at least one drain located within the single packer. The single packer is designed with an outer flexible skin and one or more drains coupled to the outer flexible skin. A mandrel is pos... | 02/14/2012 |
| 8109340 | High-pressure/high temperature packer seal A packer device includes an elastomeric packer element which is seated upon an inner sleeve that surrounds a central inner mandrel. The inner sleeve and the inner mandrel are oriented at an angle of departure with respect to the central axis of the tool, thereby pro... | 02/07/2012 |
| 8100190 | Methods for swelling swellable elements in a portion of a well using a water-in-oil emulsion A method is provided for swelling hydrocarbon-swellable elements located in a portion of a well. The method comprises the steps of: (A) introducing a water-in-oil emulsion into the portion of the well, wherein the water-in-oil emulsion comprises: (i) a hydrocarbon l... | 01/24/2012 |
| 8100189 | System and method for dynamic sealing of a drill string A system and a method are described for a dynamic seal around a drill stem that moves into or out of water carrying, drilling fluid carrying or hydrocarbon carrying wells. The sealing arrangement (10) comprises an elongated sealing unit (30) that is ar... | 01/24/2012 |
| 8083000 | Swellable packer having a cable conduit An apparatus and assembly create a seal in a wellbore around a cable or line. The assembly includes a longitudinal body and a swellable portion which comprises a material selected to increase in volume on exposure to at least one triggering fluid. The swellable port... | 12/27/2011 |
| 8083001 | Expandable gage ring A gage ring assembly to provide support to an anti-extrusion containment ring in a packer device including a compression ring and a plurality of interlocking arcuate segments which form a substantially unbroken support wall when in a set condition. A first set of se... | 12/27/2011 |
| 8079420 | Sealing device A sealing device is disclosed for separating sections inside an elongate hole with at least one duct extending inside and along the hole. The sealing device includes a first portion which is arranged, in use of the sealing device, to surround the duct and fit substa... | 12/20/2011 |
| 8051914 | Well packing Annular packer (2) arranged on the outside of a production tubing (4) said packer comprises a core (12) comprising elastic polymer swelling by absorption of hydrocarbons. The core (12) may be surrounded by an external mantle of rubber ( | 11/08/2011 |
| 8051913 | Downhole gap sealing element and method A downhole sealing element includes, a malleable member having at least one closed wall cavity therein positionable downhole in a gap defined between downhole members, and a chemical disposed within the at least one closed wall cavity. The malleable member is deform... | 11/08/2011 |
| 8047298 | Well tools utilizing swellable materials activated on demand A well tool includes a generally tubular mandrel with a flow passage extending longitudinally through the mandrel, and a flow controller which initially prevents a fluid from contacting a swellable material, but which permits the fluid to contact the material in res... | 11/01/2011 |
| 8042618 | Methods for swelling swellable elements in a portion of a well using an oil-in-water emulsion A method is provided for swelling water-swellable elements located in a portion of a well. The method comprises the steps of: (A) introducing an oil-in-water emulsion into the portion of the well, wherein the oil-in-water emulsion comprises: (i) an aqueous liquid, w... | 10/25/2011 |
| 8037942 | Resettable antiextrusion backup system and method A resettable antiextrusion system including a backup ring, a ramp in operable communication with the backup ring, and a gauge ring attached to the ramp. A method for sealing a tubular. ... | 10/18/2011 |
| 8028756 | Method for curing an inflatable packer A method of curing an inflatable packing is provided that includes providing a packer assembly having an inflatable packer around a mandrel; a polyamide bandage around the inflatable packer; and a sealing layer around both the polyamide bandage and the inflatable pa... | 10/04/2011 |
| 8006773 | Swellable packer construction for continuous or segmented tubing A swellable packer construction for continuous or segmented tubing. A method of constructing a swellable packer on a continuous tubular string includes the steps of: attaching a swellable seal material to the tubular string to thereby form the packer; and then wrapp... | 08/30/2011 |
| 8002045 | Downhole tool with load diverting system and method A downhole tool for providing a seal downhole within a wellbore for reducing loading experienced by a sealing member of the downhole tool is disclosed. The downhole tool may include a pair of directional locking members, at least one of which is operable to transfer... | 08/23/2011 |
| 7967077 | Interventionless set packer and setting method for same A packer (80) for establishing sealing engagement with a surface disposed in a wellbore includes a packer mandrel (90) and a seal assembly (100, 102, 104) slidably disposed about the packer mandrel (90). The seal assembly (100, 102, 10... | 06/28/2011 |
| 7950469 | Modular well tool system A well tool is adapted to couple to at least one of a wireline service tool and a tubing string and has an adapter component engaging portion adapted to couple to an adapter component. At least a first and a second interchangeable adapter components are operable to ... | 05/31/2011 |
| 7946351 | Method and device for sealing a void incompletely filled with a cast material A method and a device for sealing a void incompletely filled with a castable material, in which an expandable material is placed in the void which is to be filled with the castable material, the expandable material expanding into spaces which are not filled with cas... | 05/24/2011 |
| 7938191 | Method and apparatus for controlling elastomer swelling in downhole applications A downhole tool includes a swellable core, and a coating that encapsulates the swellable core, wherein the coating is made of a material comprising a component soluble in a selected fluid and a component insoluble in the selected fluid. A method for controlling a do... | 05/10/2011 |
| 7938192 | Packer A packer that is usable with a well includes an anchor. The anchor includes at least one spirally extending ring, which is adapted to be selectively radially expanded to secure the packer to a casing string. ... | 05/10/2011 |
| 7931092 | Packer element with recesses for downwell packing system and method of its use A packer system for a wellbore includes a tubular member and a packer element mounted on the tubular member. The packer element is formed of a swellable polymeric material, the packer element having a radially-outward external surface, the surface including a plural... | 04/26/2011 |
| 7931093 | Method and system for anchoring and isolating a wellbore Downhole tools for anchoring and isolating at least one zone in a wellbore comprise a mandrel having an upper end, a lower end, an outer wall surface, and a longitudinal bore disposed therethrough having an axis. One or more anchors are disposed through the outer wa... | 04/26/2011 |
| 7926581 | Well tool having enhanced packing element assembly A well tool having an enhanced performance packing element assembly. A well tool includes a packing element assembly for sealingly engaging a surface, the assembly including a packing element having at least one circumferential variation. Another well tool includes ... | 04/19/2011 |
| 7913770 | Controlled pressure equalization of atmospheric chambers Methods and devices for equalizing an atmospheric chamber within a well tool in a controlled manner following the operation of setting the well tool. A packer setting tool has a setting mechanism with an atmospheric chamber and an equalization assembly to permit the... | 03/29/2011 |
| 7909110 | Anchoring and sealing system for cased hole wells An apparatus includes a casing and a sealing element that is retained in the casing. The sealing element has an unset state in which the sealing element has a first radial thickness and a set state in which the sealing element has a second radial thickness that is g... | 03/22/2011 |
| 7909109 | Anchoring device for a wellbore tool An anchoring device for tool is disclosed that can be positioned downhole and used in casing. The anchoring device can have an architecture that supports installation by running downhole and into engagement with a recess formed in the casing. The anchoring device ca... | 03/22/2011 |
| 7896089 | System and method for forming a seal in a wellbore A technique involves a packer formed as an expandable packer with an internal expandable bladder. The internal expandable bladder is surrounded with a plurality of packer slats oriented in a manner to enable expansion and contraction of the packer. Additional featur... | 03/01/2011 |
| 7896090 | Stroking tool using at least one packer cup A tool for subterranean use employs relative movement between a housing and a piston by pressurizing and removing pressure in a variable volume defined between them. The variable volume is sealed with packer cups preferably with one supported from the piston and the... | 03/01/2011 |
| 7896091 | Convertible seal A method and apparatus for sealing a wellbore is described herein. A convertible seal includes a sealing element and a valve. The sealing element is in fluid communication with the valve and fluidly blocks a bore of the convertible seal. The sealing element prevents... | 03/01/2011 |
| 7891434 | Packer setting device for high hydrostatic applications A packer setting device provides a buffered setting mechanism as a substantially incompressible fluid is selectively flowed into a compressible fluid chamber to compress a compressible fluid. This fluid transfer causes movement of a setting sleeve so that an associa... | 02/22/2011 |
| 7891432 | Apparatus and methods for setting one or more packers in a well bore Apparatus and methods for setting one or more packers in a well bore. A check valve is provided that controls flow of fluids into and out of an inflow control device on a base pipe in a production string. With the check valve in the closed position, a setting ball i... | 02/22/2011 |
| 7891431 | Annular packer device An annular packer device that is expandable in an annulus between an inner body and an outer boundary. The annular packer is sealingly movable along at least one of the inner body and the outer boundary. A method of sealing an annulus formed between a pipe and a bor... | 02/22/2011 |
| 7891433 | Resettable antiextrusion backup system and method A resettable antiextrusion system including a backup ring, a ramp in operable communication with the backup ring, and a gauge ring attached to the ramp. A method for sealing a tubular. ... | 02/22/2011 |
| 7870909 | Deployable zonal isolation system A method of providing zonal isolation in a wellbore completion includes the steps of identifying an anticipated zone for isolation in a wellbore before completing the wellbore; selecting, before completing the wellbore, a completion assembly and a cooperative deploy... | 01/18/2011 |
