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| Number | Title | Issue Date |
| 8167032 | Annulus sealing assembly An assembly arranged in a well bore and run in conjunction with a perforated or a non perforated liner has an inflatable packer section prepared for being expanded by fluid and a valve device for opening and closing of fluid communication into the inflatable packer ... | 05/01/2012 |
| 7997337 | Eutectic material-based seal element for packers The present invention relates to a seal element for a wellbore which includes a support member, a bag positioned on the support member and a eutectic material positionable in the bag. The bag may be axially compressed and axially extended along the support member th... | 08/16/2011 |
| 7963321 | Swellable downhole packer A swellable downhole packer (10) is provided for positioning downhole in a well to seal with the interior surface of a borehole or the interior surface of a downhole tubular. The packer includes a swellable elastomeric sleeve-shaped body (14) positione... | 06/21/2011 |
| 7938176 | Anti-extrusion device for swell rubber packer A system for use in a wellbore is disclosed. The system may include a tube, a swell packer surrounding a portion of the tube, a first pair of plates coupled to an outer surface of the tube and positioned at a first end of the swell packer, each of the first pair of ... | 05/10/2011 |
| 7874356 | Single packer system for collecting fluid in a wellbore A technique involves collecting formation fluids through a single packer having a plurality of sample collectors disposed along an expandable packer element. An anti-expansion device also is deployed along the expandable packer element to limit expansion in localize... | 01/25/2011 |
| 7828054 | Packer cable sealing system A packer for temporarily closing a well or a pipe including a support and an inflatable tubular element attached to the support, the element having a wall of elastic material that is deformable radially outwards under the action of internal pressure so as to press h... | 11/09/2010 |
| 7762325 | Methods and apparatus to apply axial force to a packer in a downhole tool Methods and apparatus to apply axial force to a packer in a downhole tool are described. In one described example, an apparatus to apply an axial force to an inflatable packer associated with a downhole tool includes a sleeve slidingly coupled to a body of the downh... | 07/27/2010 |
| 7677303 | Zero-relaxation packer setting lock system A packer mandrel is radially surrounded by an axially compressible packer element and a backing ring. A setting sleeve arrangement also surrounds the packer mandrel adjacent the packer element. A hydraulic locking mechanism is used to secure the setting sleeve arran... | 03/16/2010 |
| 7669653 | System and method for maintaining zonal isolation in a wellbore The invention concerns a system or a method for maintaining zonal isolation in a wellbore. According to the invention, the system comprises, at a specific location along said wellbore, a sealing element, said sealing element being able to deform both during and afte... | 03/02/2010 |
| 7621322 | Thru-tubing high expansion inflatable seal with mechanical anchoring system and method A downhole tool includes a thru-tubing high expansion, elastomeric inflatable seal and a thru-tubing mechanical anchoring arrangement. A method for separating pressure in a wellbore including actuating a mechanical anchoring system of a thru-tubing downhole tool; in... | 11/24/2009 |
| 7584787 | Sealing device for plugging a pipe or a well The device is a sleeve that is radially expandable under the action of an inflation fluid so as to press the sleeve hermetically against a wall. The sleeve includes firstly a pair of cylindrical membranes having walls that are flexible and elastic, the membranes bei... | 09/08/2009 |
| 7434616 | System and method for fluid control in expandable tubing In accordance with the teachings of the present invention, a system and method for forming a seal within tubing is provided. A section of tubing is installed in a borehole. The tubing has an inflatable element disposed along an inner surface of the tubing. The infla... | 10/14/2008 |
| 7422071 | Swelling packer with overlapping petals A packer for downhole use features interacting elements of swelling material. Preferably the elements are in contact for relative movement from an initial diameter for run in. As the elements swell, they move with respect to each other to enlarge the diameter of the... | 09/09/2008 |
| 7422058 | Reinforced open-hole zonal isolation packer and method of use A packer device and methods of use for a packer within uncased wellbore to form a complete fluid seal. The packer device includes a central mandrel body that retains a plurality of nested, telescopic expanding elements that are moveable outwardly from the mandrel bo... | 09/09/2008 |
| 7398832 | Mono-diameter wellbore casing An apparatus and method for forming a monodiameter wellbore casing. The casing includes a second casing positioned in an overlapping relation to a first casing. The inside diameter of the overlapping portion and at least a portion of the second casing are substantia... | 07/15/2008 |
| 7392851 | Inflatable packer assembly Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, a... | 07/01/2008 |
| 7387157 | Dynamic inflatable sealing device A dynamic inflatable sealing device for maintaining the pressure within an inflatable element at least substantially equal to the pressure in the annulus to maintain the inflatable element in a sealing position. The dynamic sealing device includes an inflatable elem... | 06/17/2008 |
| 7367404 | Tubing seal A method of forming a seal between two tubular members comprising providing a first tubular member having an internal surface and an external surface describing a first diameter, with a recess in the external surface at a seal portion of the first tubular member. A ... | 05/06/2008 |
| 7363970 | Expandable packer An integral bodied composite packer is constructed entirely of a composite material. It can include an expandable middle portion with an elastomeric cover to engage an exterior surface of a well bore. The expandable portion can include continuous strands of polymeri... | 04/29/2008 |
| 7360597 | Method and apparatus for gas displacement well systems A method and apparatus is provided for reducing the purge volume of a well during purging and sampling operations. In some system embodiments, the apparatus can be retrofitted to existing small diameter wells. A further embodiment provides a method and apparatus for... | 04/22/2008 |
| 7357188 | Mono-diameter wellbore casing A mono-diameter wellbore casing is formed by radially expanding a first tubular liner off of a mandrel into contact with a second tubular liner. The first and second tubular liners are positioned within the wellbore in an overlapping relationship. The overlapping po... | 04/15/2008 |
| 7357189 | Seal There is disclosed an expandable seal for sealing at least part of a wall of a well borehole, an expandable seal assembly comprising at least two such expandable seals, and a method of sealing at least part of a well borehole using such a seal. In one embodiment, th... | 04/15/2008 |
| 7350578 | Diverter plugs for use in well bores and associated methods of use Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a... | 04/01/2008 |
| 7350584 | Formed tubulars A method of lining a drilled bore comprises running a tubular into a drilled bore and then corrugating the tubular in the bore. The tubular may also be expanded in the bore. In other aspects of the invention the tubular is corrugated prior to running into the bore a... | 04/01/2008 |
| 7347274 | Annular barrier tool The present invention provides for an annular barrier tool to block or restrict the flow of well fluids in the annular region of a well. ... | 03/25/2008 |
| 7349223 | Enhanced compliant probe card systems having improved planarity Several embodiments of enhanced integrated circuit probe card and package assemblies are disclosed, which extend the mechanical compliance of both MEMS and thin-film fabricated probes, such that these types of spring probe structures can be used to test one or more ... | 03/25/2008 |
| 7341110 | Slotted slip element for expandable packer A packer device includes a central packer mandrel and a radially surrounding expansion mandrel that can expand radially. At least one slip mandrel carrying wickers surrounds the expansion mandrel and a plurality of axial slots are disposed within the slip mandrel. | 03/11/2008 |
| 7341111 | Expandable bridge plug and setting assembly Bridge plug and setting assembly may be used in a well with a tubular therein to control flow through the tubular. A plurality of fluid powered units 16, 24 are suspended in a well from a work string 14 for exerting a driving force. A plug member 50... | 03/11/2008 |
| 7331581 | Inflatable packers Improved inflatable packers are provided. A packer may be constructed from hybrid structures including slat structures and weave structures. A packer may include a bladder and a cover, with a plurality of slats disposed therebetween, and/or a weave structure or anti... | 02/19/2008 |
| 7325621 | Method and apparatus for ECP element inflation utilizing solid laden fluid mixture An inflatable element utilizing a solid or particulate laden fluid as an expansion media. A fluid component of the solid or particulate laden fluid is exhausted from a defined area of the element to leave substantially only particulate matter therein to maintain the... | 02/05/2008 |
| 7322422 | Inflatable packer inside an expandable packer and method A completion assembly for use in a well, including at least one inflatable packer; at least one control line and at least one source of pressurized fluid wherein the at least one source of pressurized fluid is in fluid communication with the at least one inflatable ... | 01/29/2008 |
| 7322410 | Controllable production well packer An apparatus and method for operating an electrically powered device in a packer using the piping structure of the well as an electrical conductor for providing power and/or communications. The electrically powered device may comprise an electrically controllable va... | 01/29/2008 |
| 7311151 | Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons A flowline is described for producing hydrocarbons from a subsea well that is comprised of a substantially neutrally buoyant tubular composite umbilical. The flowline may possess electrical heating apparatus within the tubular walls of the tubular composite umbilica... | 12/25/2007 |
| 7308945 | Packing tool and method A packing tool comprises a sealing element for mounting on a mandrel so as to define a volume between the sealing element and the mandrel; and a ring member for mounting on the mandrel adjacent the sealing element. The ring member is axially movable relative to the ... | 12/18/2007 |
| 7306033 | Apparatus for isolating zones in a well An apparatus and method, particularly useful for isolating zones in a hydrocarbon wellbore. The apparatus includes a tubular section, such as a length of casing or liner tubular, arranged to be run into and secured within the wellbore which may be open hole or alrea... | 12/11/2007 |
| 7284619 | Packer with positionable collar A fluid actuated packer 10 and collar 36 assembly is provided for positioning on a tubular member 12. The collar 36 is moveable by a running tool 110 positioned within the tubular member and has a closed position and a packer activ... | 10/23/2007 |
| 7278477 | Cup tool, cup tool cup and method of using the cup tool A cup tool includes a cup tool tube having a threaded upper end for connection to a high-pressure mandrel, an outer surface over which an elastomeric cup is slidably mounted for reciprocal movement from an unset position for entry into a wellbore to a set position i... | 10/09/2007 |
| 7275598 | Uncollapsed expandable wellbore junction An uncollapsed expandable wellbore junction and associated methods. In a described embodiment, a method of creating an expanded pressure vessel in a subterranean well includes the step of expanding the pressure vessel in the well, thereby increasing a dimension of t... | 10/02/2007 |
| 7252142 | Annular isolators for expandable tubulars in wellbores The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the... | 08/07/2007 |
| 7249633 | Release tool for coiled tubing A bottom hole assembly for use with fracturing or fracing a wellbore using coiled tubing is described having a first packing element and a second packing element on a mandrel. The bottom hole assembly may be run into the wellbore such that the packing elements strad... | 07/31/2007 |