| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166135000 |
Flow stopping type, e.g., plug
| 27 |
| 166120000 |
Anchor actuated by fluid pressure
| 21 |
| 166138000 |
Wedge or cam and friction drag
| 16 |
| 166134000 |
Support and holddown expanding anchors
| 16 |
| 166123000 |
With detachable setting means
| 7 |
| 166119000 |
Relatively movable packers or plugs | 5 |
| 20090065192 | PACKER - A packer includes first and second external seal elements. The first external seal element is adapted to form an annular seal in the well. The second external seal element is adapted to be moved in response to fluid in the well to produce a force to at least partially assist an operation of the packer. | 03-12-2009 |
| 20100139911 | Subterranean well ultra-short slip and packing element system - A subterranean well tool is provided for sealing along a section of a wall of the well and is carried on a conduit into the well. The tool is designed to be comparatively short in length to afford easier mill or drill out subsequent to the tool's useful need in the well. A plurality of anchoring elements and seal means are provided for respective anchoring and sealing engagement along the wall of the well in concert and substantially concurrently with one another when the tool is shifted to the set position. The anchoring means are sandwiched in between first and second, or upper and lower, sets of seal means. | 06-10-2010 |
| 20100155053 | DOWNHOLE FLUID COMMUNICATION APPARATUS AND METHOD - A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall. | 06-24-2010 |
| 20110284212 | DOWNHOLE FLUID COMMUNICATION APPARATUS AND METHOD - A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall. | 11-24-2011 |
| 20120037355 | Retractable Petal Collet Backup for a Subterranean Seal - A high expansion plug has multiple sealing elements and an extrusion barrier system that uses overlapping petals in a stack of rings. When setting the plug, the petals are elastically moved toward a surrounding tubular wall in an elastic deformation between a housing that surrounds the mandrel and a tapered ring on the mandrel. That sandwich controls the amount of deformation and allows a potential energy force to be stored in the petals that allows them to return toward their initial position when the set of the plug is released and the seals are allowed to relax and extend axially as they shrink radially. The plug can then be removed without milling. Expansions in the order of 25% of the initial seal dimension are contemplated. | 02-16-2012 |
| 166129000 |
With controllable bypass outside central conduit | 4 |
| 20080308268 | Method and Apparatus to Hydraulically Bypass a Well Tool - Apparatuses and methods to communicate with a zone below a subsurface safety valve ( | 12-18-2008 |
| 20120006530 | Packing element system with profiled surface - A downhole retrievable dual directional isolation tool, comprising a mandrel, a compressor ring concentric with the mandrel, and a packing element concentric with the mandrel and having an outer surface defining a plurality of grooves. A downhole retrievable dual directional isolation tool, comprising a mandrel, a packing element concentric with the mandrel, a compressor ring concentric with the mandrel and having a first side wall proximate to a second side wall of the packing element, and a stop ring concentric with the mandrel having a third side wall proximate to a fourth side wall of the packing element, wherein the first side wall of the compressor ring or the third side wall of the stop ring have a circumferential land, whereby in a set state of the tool a contact area between the circumferential land and the second side wall of the packing element or the fourth side wall of the packing element achieves higher contact pressure. | 01-12-2012 |
| 20120217003 | Open Hole Expandable Packer with Extended Reach Feature - An open hole packer uses mandrel expansion and a surrounding sealing element that can optionally have a swelling feature and further a seal enhancing feature of a ring with an internal taper to match an undercut on the mandrel exterior. As a swage progresses to the taper at the transition between the ring and the extending flat fingers, the fingers get plastically deformed in an outward radial direction to push out the sealing element. Shrinkage of the mandrel axially due to radial expansion brings a ring on the mandrel outer surface under the fingers to act as a support for the fingers against the seal which is pushed against the open hole. Mirror image orientations are envisioned to aid in retaining pressure differentials in opposed directions. Another external mandrel ring extends into the seal to keep its position during differential pressure loading. | 08-30-2012 |
| 20120217004 | Expandable Packer with Expansion Induced Axially Movable Support Feature - An open hole packer uses mandrel expansion and a surrounding sealing element that can optionally have a swelling feature and further a seal enhancing feature of a ring with an internal taper to match an undercut on the mandrel exterior. As a swage progresses to the taper at the transition between the ring and the extending flat fingers, the fingers get plastically deformed in an outward radial direction to push out the sealing element. Shrinkage of the mandrel axially due to radial expansion brings a ring on the mandrel outer surface under the fingers to act as a support for the fingers against the seal which is pushed against the open hole. Mirror image orientations are envisioned to aid in retaining pressure differentials in opposed directions. Another external mandrel ring extends into the seal to keep its position during differential pressure loading. | 08-30-2012 |
| 166126000 |
With controllable passage between central chamber and space below packer | 4 |
| 20100263857 | Composite Cement Retainer - A downhole plug is provided. In one or more embodiments, the plug includes a body and an element system disposed about the body. The plug further includes a first and second back-up ring member having two or more tapered wedges. The tapered wedges are at least partially separated by two or more converging grooves. First and second cones are disposed adjacent the first and second back-up ring members. | 10-21-2010 |
| 20110042067 | SUBSURFACE DISCRETE INTERVAL SYSTEM WITH VERIFIABLE INTERVAL ISOLATION - A subsurface discrete interval system for water and soil vapor, providing verifiable interval isolation, media evaluation and monitoring, field modifiability, extraction, and injection capabilities. The system comprises an outer structure ( | 02-24-2011 |
| 20120125600 | DEVICE FOR BLOCKING-OFF PART OF THE INTERIOR OF A PIPE - A device for establishing an environment of a required fluid inside a length of pipe, comprising two pipe-engaging members adapted to engage the interior surface of the pipe at respective positions spaced therealong, and means for introducing said fluid into the interior of the pipe between said engaging members, each pipe-engaging member comprising a casing for contacting the pipe interior surface and containing an inflatable element; wherein the casing of each engaging member includes at least a portion of stretchable material for enabling expansion and contraction of the casing in a direction radially of the pipe, for engaging a range of internal pipe sizes. | 05-24-2012 |
| 20100200218 | Apparatus and method for treating zones in a wellbore - Apparatus and method for treating zones in a wellbore. The apparatus includes an expandable packer assembly and a sealing element positioned in the treatment assembly above the packer assembly. A communication port is positioned between the sealing element and the packer assembly. A plurality of slips will grippingly engage the well above the port through which treatment fluid is communicated to resist upward force caused by treatment pressure in the well acting on the sealing element. The sealing element may be a cup packer. | 08-12-2010 |
| 166133000 |
With controllable passage through packer | 3 |
| 20130133877 | Differential Pressure Control Device for Packer Tieback Extension or Polished Bore Receptacle - An annular seal for a setting tool in a packer tieback extension comprises a downhole oriented packer cup assembly. As the tool is run in the hole the packer cup flexes as the rising hydrostatic pressure equalizes across the cup into what started as a zone with atmospheric pressure inside the packer tieback extension. Once the pressure is equalized the self energizing feature of the packer cup maintains grit and debris in the mud from entering the tieback extension where the spring loaded dogs of the setting tool are held in a retracted position. If the seal fails to equalize and allows a large differential across the setting sleeve from the surrounding annulus, the rupture disc breaks inwardly into the tieback extension so that pressure is equalized. If the packer is never set after being lowered to depth and the pressure from the tieback extension is equalized into the annulus. | 05-30-2013 |
| 20150101795 | DOWNHOLE PACKER - A packer having at least two or more areas of relative rotation. The packer also incorporates a jet port, a highly debossed mandrel and/or a J-pin rotatably disposed within a drag block assembly for continuously and redundantly engaging a J-slot area disposed in the mandrel. The areas of relative rotation can be between the mandrel and piping above the packer, the drag block assembly and the mandrel, and the drag block assembly and the J-pin. | 04-16-2015 |
| 20160024875 | DOWNHOLE PACKER - This disclosure is directed to a packer having at least two areas of relative rotation. The disclosure is further directed toward a packer incorporating a jet port, a highly debossed mandrel and/or a J-pin rotatably disposed within a drag block assembly for continuously and redundantly engaging a J-slot area disposed in the mandrel. | 01-28-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20080210418 | Split Body Swelling Packer - A swelling packer system uses modules that can be joined together and mounted over a tubular using a vertical split that can be drawn closed with a tapered pin in overlapping loops. The pins are circumferentially spaced apart as between adjacent modules. End rings can protect the modules for run in and act as extrusion barriers during and after the swelling is complete. The module ends can be overlapped in an interlocking fashion which allows multiple elements to be joined together to make a packer assembly as long as desired with any combination of swelling elements in a single packer assembly. Optionally, interior grooves in the swelling material can hold split ring seals or o-ring type seals that are slipped over a tubular end before a module is clamped on. The sealing elements can be triggered with water or hydrocarbons or with other materials already in the wellbore or introduced to it or other surface or locally actuated triggers. | 09-04-2008 |
| 20080217000 | Casing patch - A casing patch includes a deformable seal configurable to a deformed and undeformed position for sealing and unsealing respectively with a target stub and a pressure based subsystem in operable communication with the deformable seal. The patch may also contain a stop ring to prevent overcompression of the seal. | 09-11-2008 |
| 20080223571 | PACKER SYSTEM AND METHOD - Disclosed herein is a packer system. The packer system includes, a first packing element settable to create a seal against a downhole structure, and a contingency packing element in operable communication with the first packing element, maintainable in reserve and settable at a time after which the first packing element is set. | 09-18-2008 |
| 20080264627 | PERMANENT ANCHORING DEVICE - An anchoring device to secure a packer assembly within a casing, including a frangible ring having a plurality of grips on an outer circumference, wherein a first end of the frangible ring includes a plurality of circumferentially spaced slots, and an expansion ring having a plurality of castellations configured to engage the slots of the first end of the frangible ring is disclosed. A method to secure a packer assembly in a casing, including engaging a plurality of arcuate segments of a segmented ring with a plurality of slots in a first end of a frangible ring, engaging a plurality of castellations of an expansion ring with the plurality of slots on a second end of the frangible ring, and moving the expansion ring in an axial direction towards the frangible ring and splitting the frangible ring into a plurality of slip segments, thereby radially extending the plurality of slip segments and segmented ring into the casing is also disclosed. | 10-30-2008 |
| 20080277109 | 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 downhole tool includes disposing a downhole tool in a wellbore, wherein the 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; and exposing the swellable device to the selected fluid to increase the permeability of the coating to allow the swellable core to swell. | 11-13-2008 |
| 20080308266 | DRILLABLE BRIDGE PLUG - A drillable bridge plug comprising a mandrel, a sealing element disposed around the mandrel, a plurality of backup rings adjacent the sealing element, a lower slip assembly disposed around the mandrel, an upper slip assembly disposed around the mandrel, an upper cone adjacent the upper slip assembly and engaged with the mandrel with at least one axial locking apparatus and at least one rotational locking apparatus, and a lower cone adjacent the lower slip assembly and engaged with the mandrel with at least one axial locking apparatus and at least one rotational locking apparatus. A drillable bridge plug comprising a mandrel and at least one slip assembly at least partially made of a material having less than 10% elongation. | 12-18-2008 |
| 20090065191 | Support assembly for downhole tool, downhole tool and method - A support assembly for a deformable sealing element of a downhole tool such as a packer, bridge plug or straddle. The support assembly has first and second support devices at each end of the sealing element with each device having an elastically deformable support member adapted to be located between the respective end of the sealing element and an actuating member of the downhole tool. Additionally, a guide member with an inclined guide surface is provided such that the support member travels along the inclined surface when a force is exerted by the actuating member to expand the sealing element radially into abutment with a surface downhole. The support member moves radially outwards to support the respective end of the sealing element during deformation. | 03-12-2009 |
| 20090071641 | EXPANDABLE METAL-TO-METAL SEAL - A seal includes a seal body configured to form a teardrop shaped seal member upon axial compression of the seal body; a gauge ring in operable communication with the seal body and capable of applying an axial load on the seal body and method. | 03-19-2009 |
| 20090126925 | HELICAL BACKUP ELEMENT - A helical backup element includes a tubular body of material and a helical opening in the tubular body. | 05-21-2009 |
| 20090139707 | Swellable Packer with Back-Up Systems - A packer assembly which incorporates a swellable elastomeric packer element and one or more swellable thermoplastic components. The swellable thermoplastic components are support rings that are located at each axial end of the elastomeric element and provide positive mechanical backups for the elastomeric element to limit extrusion of the packer element. | 06-04-2009 |
| 20090139708 | Wrap-On Reactive Element Barrier Packer and Method of Creating Same - Systems and methods for installing an elastomeric element onto a packer mandrel or other existing oil field tubular equipment. In particular aspects, the packer device has a swellable elastomeric packer element. | 06-04-2009 |
| 20090159265 | Packer-anchoring device - A packer-anchoring device between an annular packer and a body, wherein the annular packer is provided, at least at one of its end portions, with an expandable end ring. | 06-25-2009 |
| 20090205816 | DOWNWELL SYSTEM WITH SWELLABLE PACKER ELEMENT AND COMPOSITION FOR SAME - A composition suitable for use in a packer element for a wellbore includes: a hydrocarbon-swellable polymer, the hydrocarbon-swellable polymer present in the composition in an amount between about 10 and 30 percent by weight; an oil-resistant polymer, the oil-resistant polymer present in the composition in an amount between about 10 and 30 percent by weight; and a hydrocarbon swelling agent, the hydrocarbon swelling agent present in the composition in an amount between about 15 and 60 percent by weight. A composition as described may have a good balance of the swelling properties of the hydrocarbon-swellable polymer and the mechanical properties of the oil-resistant polymer. These properties may be useful in a packer element for a wellbore. | 08-20-2009 |
| 20090205817 | DOWNWELL SYSTEM WITH DIFFERENTIALLY SWELLABLE PACKER - A packer assembly comprises a tubular member and a packer system that circumferentially overlies the tubular member. The packer system includes end portions and a central portion disposed between the end portions. The central portion and the end portions are formed of material that swells when contacted with a swelling fluid. The central and end portions are constructed to swell upon contact with the swelling fluid so that the central portion swells to a diameter defined by a wall of the wellbore more rapidly than the end portions. In such a configuration, the central portion of the packer system can be fully swollen prior to the full swelling of the end portions. | 08-20-2009 |
| 20090242188 | Downhole Isolation Tool - An isolation tool for use in a tubular. The isolation tool comprising gripping members and sealing members to engage and seal the isolation tool to an inner wall of the tubular at a desired location in the tubular. The isolation tool further comprising a locking system that allows the isolation tool to be set in a desired position within the tubular. The locking system prevents the isolation tool from any further movement which would unset it from the desired position. | 10-01-2009 |
| 20090260801 | RING MEMBER FOR A SWELLABLE DOWNHOLE PACKER - A ring member for a downhole apparatus including a swellable material selected to increase in volume on exposure to at least one triggering fluid is described. The ring member is configured to cooperate with a swellable member disposed on a body of the apparatus, and may, for example, function as a gauge ring or a retaining member. The ring member is secured to the apparatus via a coupling arrangement which couples the body to an adjacent well string section. In one embodiment, the ring member is threaded into the well string. In another, it is disposed over an upstanding formation such as a coupling sleeve, for example, by clamping. An assembly and a method of assembly are also described. | 10-22-2009 |
| 20090283254 | Swellable Packer With Variable Quantity Feed-Throughs for Lines - A swellable packer with variable quantity feed-throughs for lines. A packer assembly for use in a subterranean well includes a generally tubular swellable seal element having an outer generally cylindrical surface, one or more cavities extending longitudinally through the seal element, and one or more longitudinally extending splits in the seal element between the outer surface and each of the cavities. One or more elongated plugs are positioned within at least one of the cavities. A method of sealing a fluid passage in a subterranean well includes the steps of: inserting one or more elongated plugs in one or more cavities which extend longitudinally through a swellable seal element of a packer assembly; and installing the packer assembly in the well. The installing step includes removing a selected number of the plugs from the cavities, and replacing the selected number of the plugs with a corresponding number of lines. | 11-19-2009 |
| 20090321066 | Packer Insert for Sealing on Multiple Items Used in a Wellbore - A packer insert for sealing multiple items used in a wellbore includes an elastomeric member having one or more channels configured to seal on the multiple items when compressed by a packing unit, wherein the elastomeric member is made of a material selected from rubber, an elastomer, and a composite material, and wherein the packer insert is not affixed to a pressure control apparatus having the packing unit disposed therein. The packer insert is axially fixed to at least one of the multiple items. | 12-31-2009 |
| 20100038072 | SEALING AND ANCHORING DEVICE FOR USE IN A WELL - The present invention relates to a sealing and/or anchoring element for use in pipelines ( | 02-18-2010 |
| 20100147507 | POLYMER COMPOSITION, SWELLABLE COMPOSITION COMPRISING THE POLYMER COMPOSITION, AND ARTICLES INCLUDING THE SWELLABLE COMPOSITION - A polymer composition includes a base polymer comprising a hydrocarbon rubber, an acrylic copolymer, and a refined oil in which the acrylic polymer is dispersed. The polymer composition is swellable when treated with an aqueous medium, non-aqueous medium, or both. A sealing element for a flow channel includes an expandable section filled with a swellable composition that swells when treated with a swelling material. The swellable composition includes the polymer composition, and the swelling material may be aqueous, non-aqueous, or both. | 06-17-2010 |
| 20100147508 | Wrap-On Reactive Element Barrier Packer and Method of Creating Same - Systems and methods for installing an elastomeric element onto a packer mandrel or other existing oil field tubular equipment. In particular aspects, the packer device has a swellable elastomeric packer element. | 06-17-2010 |
| 20100147509 | Large bore packer and methods of setting same - Devices and methods for setting a packer inside a wellbore with little appreciable reduction of the useable area of the wellbore. The outer casing or liner of the wellbore contains one or more integrated casing coupler joints having an increased diameter chamber portion. A large bore packing element is carried within the increased diameter chamber portion. The packing element may be selectively actuated to form a seal against an interior tubular member. Because the packing element is located within the chamber portion of the casing coupler, the packer may be set while saving useable cross-sectional area within the casing. | 06-17-2010 |
| 20100206550 | SLIP SEGMENTS FOR DOWNHOLE TOOL - A downhole tool has a mandrel with slip assemblies positioned thereon above and below a packer element. The slip assemblies are positioned in a manner to anchor the downhole tool in the well. The slip assemblies include a slip ring which has a plurality of slip segments. Each slip segment has inserts disposed in cavities therein. The cavities are oriented such that the longitudinal central axis of each cavity is parallel to the longitudinal central axis of each of the other cavities in the slip segment. | 08-19-2010 |
| 20100243235 | Packer Providing Multiple Seals and Having Swellable Element Isolatable from the Wellbore - A packer provides multiple seals when deployed downhole. Exposed to an activating agent, a swellable element on the packer's mandrel expands radially outward to form a seal with the borehole wall. One or more deformable elements, such as compressible packers or cup packers, are disposed on the mandrel adjacent the swellable element. These deformable element deform outward to the surrounding borehole wall to at least partially isolate the downhole annulus and the swellable element. Bias units releasably affixed on the tool adjacent the deformable elements can deform the elements. These bias unit can be released either by swelling of the swellable element or by fluid pressure. Once released, the bias units are axially biased toward the deformable elements to deform them. In this way, the packer can form multiple seals with the borehole wall, and the deformable elements can isolate the swellable element from the downhole annulus, which can keep the swellable element from degrading or being overly extruded. | 09-30-2010 |
| 20100252252 | Hydraulic setting assembly - Novel hydraulic actuators and hydraulic setting assemblies are provided for use in downhole, oil and gas well tools. The novel hydraulic actuators include a cylindrical mandrel and an annular stationary' sealing member connected to the mandrel. A hydraulic cylinder is slidably supported on the mandrel and stationary sealing member and is releasably fixed in position on the mandrel. The stationary sealing member divides the interior of the cylinder into a bottom hydraulic chamber and a top hydraulic chamber. An inlet port provides fluid communication into the bottom hydraulic chamber, and an outlet port provides fluid communication into the top hydraulic chamber. A balance piston is slidably supported within the top hydraulic chamber of the actuator. The piston includes an axially extending passageway. Fluid communication through the piston and between its upper and lower sides is controlled by a normally shut valve in the passageway. In the absence of relative movement between the mandrel and cylinder, the balance piston is able to slide in response to a difference in hydrostatic pressure between the outlet port, is which is on one side of the piston, and the portion of the top hydraulic chamber that is on the bottom side of the piston. | 10-07-2010 |
| 20100288486 | Swellable Downhole Packer - A swellable downhole packer ( | 11-18-2010 |
| 20100288487 | Non-Metallic Mandrel and Element System - A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring. | 11-18-2010 |
| 20100307737 | Packer with Ribs - Arrangement for use with a plug ( | 12-09-2010 |
| 20110079383 | INTERCHANGEABLE DRILLABLE TOOL - A downhole tool for use in a well has a mandrel with an expandable sealing element disposed thereabout. The mandrel has a head portion threadedly connected thereto. A shoulder in the head portion and an upper end of the mandrel define an annular space. A sleeve with a bore therethrough may be positioned in the annular space. The head portion may be removed and a solid plug installed so that it fits within the annular space and so that the downhole tool will act as a bridge plug. The downhole tool has slip rings made up of a plurality of individual slip segments that are adhesively bonded to one another at the sides thereof. | 04-07-2011 |
| 20110259578 | SWELLABLE DOWNHOLE PACKER - A swellable downhole packer ( | 10-27-2011 |
| 20110290472 | PROCESS FOR MANUFACTURING SWELLABLE DOWNHOLE PACKERS AND ASSOCIATED PRODUCTS - Embodiments of the present invention provide a process for manufacturing swellable packers with reinforcing fabrics and associated products used for sealing off chambers within well bores. According to one embodiment, the swellable packer is formed around a pipe by embedding a sheet of the reinforcing fabric within layers of a swellable polymer wrapped around the pipe. A sheet of reinforcing fabric is situated near each end of the swellable packer. Thus, as exposure to oil or water will cause the swellable packer to expand, the reinforcing fabric will initially retard swelling at the ends to allow for greater initial swelling along the center portion. The reinforcing fabric also strengthens the polymer to resist tearing or breakage caused by the flow of oil or water. A pair of swellable packers according to embodiments of the present invention can be placed on a pipe and placed within a bore and exposed to oil or water to create a pressurized chamber. | 12-01-2011 |
| 20110297368 | Swellable Packer Slip Mechanism - A packer having a swellable element is configured for axial expansion of the swellable element. The axial expansion causes the slip mechanism to deploy and engage a sidewall of a tubular or casing. The axial expansion may directly cause activation of the slip mechanism, or may trigger a triggering mechanism to activate a spring-loaded slip mechanism. The swellable element may be the same element used for sealing the packer to the sidewall, or may be a sleeve dedicated for deployment of the slip mechanism. | 12-08-2011 |
| 20120012304 | COMPLIANT PACKERS FOR FORMATION TESTERS - Compliant packers for formation testers are disclosed. An example apparatus includes a base plate having a first aperture to receive an inlet in fluid communication with a downhole tool; a compliant outer cover having a first end terminating at the base plate and a second end terminating adjacent a forward opening of the inlet, the compliant outer cover having a first surface configured to engage a borehole wall and a second surface forming an inner cavity with the base plate; and a core disposed within the inner cavity and having a second aperture forming at least a portion of the inlet, wherein the outer cover comprises a first material and the core comprises a second material more compliant than the first material. | 01-19-2012 |
| 20120160475 | DOWNHOLE PACKER TOOL WITH ANTIFRACTURE MEANS - A linkage device separate from the integrated slips bridge links the pair of spaced-apart members of each slip to prevent sizeable fractured bits from moving away in the event of a fracture in the slip. The linkage device comprises a pair of ductile steel bars the ends of which loosely anchor in holes in each slip member, the holes being located at both sides of the slips at opposite ends of a groove that houses the linkage bar preventing it from falling out of the holes. In this way, a fractured slip may continue to assist in setting the tool and, moreover, potential hazardous interference in further tool operations are avoided. Furthermore, tool damage including slips fracture is reduced by a resilient damper material which buffers the lower cone as it slides down on the slip-holder cage during a tool release operation. | 06-28-2012 |
| 20120186801 | Swellable Downhole Packer - A swellable downhole packer ( | 07-26-2012 |
| 20120205092 | ANCHORING AND SEALING TOOL - The present invention generally relates to an anchoring and sealing tool. In one aspect, downhole tool for use in a wellbore is provided. The tool includes a tubular having a tapered outer surface. The tool further includes an expandable annular member disposed on the tubular. The expandable member has an anchor portion. The tool further includes a seal member disposed in a groove of the expandable annular member. The seal member has one or more anti-extrusion bands, wherein the seal member and the anchor portion are configured to be expandable radially outward into contact with the wellbore as the expandable annular member moves along the tapered outer surface of the tubular. | 08-16-2012 |
| 20120227957 | Expandable Isolation Packer - An expandable packer features a sealing element in an exterior recess that is straddled by projections or bumps. Upon expansion the bumps move out against the borehole wall as an anchor support. Optionally, the bumps may be covered with a sealing material and may be constructed to assist in their radial movement to the borehole wall as a result of expansion particularly if the mandrel is expanded in compression. The bumps are not necessarily expanded with the swage and their radial growth can be induced from longitudinal shrinkage resulting from radial expansion. | 09-13-2012 |
| 20120273188 | Swellable Oilfield Apparatus and Methods of Forming - A method of forming a swellable oilfield apparatus provides an apparatus with a body of swellable elastomeric material which increases in volume on exposure to at least one triggering fluid, and the surface energy of the swellable elastomeric material is modified to increase the water-wettability of the swellable elastomeric material. The swellable elastomeric material may comprise a base elastomer and at least one additive selected to modify the surface energy. Alternately, the swellable elastomeric material may comprise a base elastomer treated by an electrical treatment process to modify the surface energy of the swellable elastomeric material. An apparatus constructed according to the method provides improved swelling performance in aqueous fluids. | 11-01-2012 |
| 20120298349 | Packer for Sealing Against a Wellbore Wall - A packer for sealing against an inner cylindrical mandrel and a wellbore wall. | 11-29-2012 |
| 20120305236 | DOWNHOLE TOOLS HAVING RADIALLY EXPANDABLE SEAT MEMBER - Apparatuses for restricting fluid flow through a well conduit comprise a tubular member having a radially expandable seat member disposed within the tubular member. The radially expandable seat member comprises one or more arcuate members, each having first and second ends. The radially expandable seat member comprises a first position in which the first and second ends are disposed relative to each other to provide a first inner diameter opening through the radially expandable seat member for receiving a plug element, and a second position in which the first and second ends are moved radially outward relative to one another to provide a second inner diameter opening through the radially expandable seat member, the second inner diameter being greater than the first inner diameter thereby facilitating the plug element passing through the radially expandable seat member. | 12-06-2012 |
| 20130020071 | FRANGIBLE SLIP FOR DOWNHOLE TOOLS - Slip members for use with downhole tools comprise a body formed of a first or body material and one or more hard material elements formed of a second or element material. The element material is harder than the body material. The hard material element is disposed through the body and in communication with a first surface and a second surface of the body, the second surface being disposed opposing the first surface. During manufacturing of the slip members, the hard material element may extend outwardly from one or both of the first and second surfaces. After manufacturing, the hard material element can be shaped to provide a gripping member. | 01-24-2013 |
| 20130025849 | ACTUATED PACKER ARRANGEMENT HAVING A DEGRADABLE LAYER FOR A SEAL - A packer arrangement for forming a seal between an inner tubular string and an outer tubular string in a borehole includes: an outer tubular string member defining an axial flowbore and having an associated packer setting mechanism; a packer device disposed at least partially within the outer tubular string member to form a seal against an inner tubular string, the packer device including a degradable layer for temporarily and at least partially protecting the packer device; an inner tubular string member to be disposed within the flowbore of the outer tubular string member; and an actuator carried on the inner tubular string member, the actuator being operable to actuate the packer setting mechanism to set the packer device against the inner tubular string. | 01-31-2013 |
| 20130068448 | Device for Carrying a Replacement Safety Valve in a Well Tube - Device for carrying a replacement safety valve in a well tube, with a straddle structure for placement inside a damaged “Down Hole Safety Valve” nipple seal area. It is comprising a pair of sealing assemblies ( | 03-21-2013 |
| 20130112398 | MODIFIED PACKER WITH NON-EXTRUSION RING - Embodiments of the present disclosure generally provide a packer for use within a conduit, such as casing, having non-extrusion rings. The non-extrusion ring is comprised of rigid segments, a support ring and an elastic matrix. | 05-09-2013 |
| 20130146277 | Multi-component Anti-extrusion Barrier for a Compression Set Subterranean Barrier - A backup ring assembly is disposed between opposed cones. The assembly rides up a wedge ring to contact a surrounding tubular when the opposed cones are pressed axially together to also compress the sealing element. The backup ring assembly has nested split rings that are slant cut for the split. The split for the nested rings can be circumferentially aligned or offset. Another ring is stacked axially adjacent the nested rings and has a slant cut for a split that is preferably rotated from the slant cuts of the nested rings. The interface of the nested rings can be along a line that is parallel to the mandrel axis or askew to the mandrel axis. The preferred material is a non-metallic composite material. | 06-13-2013 |
| 20130269929 | PROTECTED RETAINING BANDS - An improved downhole tool apparatus for limiting the extrusion of a sealing elements in downhole tools that use segmented retaining assemblies, retaining shoes or retaining limiters. The apparatus provides for locating the retaining bands for the retaining assemblies in a groove on the inner surface of the retaining assembly so that the bands are protected from breaking prematurely by inadvertently contacting the wellbore, casing within a wellbore, or other object. | 10-17-2013 |
| 20140041857 | SETTING TOOL, ANCHORING AND SEALING DEVICE AND SYSTEM - An anchoring and sealing device includes at least one slip, a seal and a tubular in operable communication with the at least one slip and the seal. The anchoring and sealing device is configured to cause radial movement of the at least one slip into anchoring engagement with a structure and to cause radial movement of the seal into sealing engagement with the structure in response to longitudinal compression of the anchoring and sealing device. The anchoring and sealing device is also configured to maintain anchoring and sealing engagement with the structure without additional components remaining in contact therewith. | 02-13-2014 |
| 20140060811 | DOWNHOLE ELASTOMERIC COMPONENTS INCLUDING BARRIER COATINGS - An apparatus for performing a downhole operation includes: a carrier configured to be disposed in a borehole in an earth formation; and a deformable component configured to be disposed in the borehole, the deformable component including an elastomeric material and a barrier coating disposed on a surface of the elastomeric material, the barrier coating having properties configured to resist permeation of downhole gases into the elastomeric material at downhole temperatures. | 03-06-2014 |
| 20140060812 | Standoff Device For Downhole Tools Using Slip Elements - A device and method for use is provided for grippingly engaging a tubular, in particular for gripping a wellbore casing. Drillable bridge plugs may use hardened buttons or other slip arrangements and materials that may be susceptible to damage when the bridge is being run into the wellbore. It may be desirable to protect the slip ring or the hardened buttons by shielding the buttons during run-in or by providing a standoff device so that the buttons may be prevented from contacting the casing until desired. | 03-06-2014 |
| 20140090831 | Non-metallic Slips having Inserts Oriented Normal to Cone Face - A slip assembly for a downhole tool, such as a composite plug, has a slip body and at least one insert. The slip body has an incline at one end that interfaces with an inclined surface of a cone. As this occurs, the slip body is pushed away from the tool's mandrel against a surrounding casing wall. The insert is disposed in the slip body with the axis of the insert angled away from the cone. In particular, the insert's axis is preferably angled normal to the slip body's incline and the inclined surface of the cone. | 04-03-2014 |
| 20140190682 | Downhole Tool Apparatus with Slip Plate and Wedge - A downhole tool that is used to seal a well bore. The downhole tool has at least one of a nose cap coupled to a slip means for converting shear forces into compression forces, a pultrusion rod, and a butterfly ring. The pultrusion rod extends the full length of the center mandrel. The butterfly ring includes a plurality of wedges configured to remove the extrusion gap when the tool is expanded to prevent failure of a sealing member over increased well bore diameters. The downhole tool includes a pressure equalization port to equalize pressure between a first and a second fluid volume during removal of the tool from the well bore. | 07-10-2014 |
| 20140251593 | Shear Member Post Shear Segment Retention Apparatus - Shear member designs in various formats are presented with additional features for segment retention and subsequent removal after a shearing event and removal of the tool from a subterranean location. In some embodiments a portion of the shear member is retained by threads so that the segment stays in the part and then can be removed at the surface with putting a notch in the segment and removing it with a screwdriver. In another embodiment a retaining pin in an intersecting bore can hold onto a sheared remnant of the shear pin by pushing the remnant laterally in the bore that it is mounted. Another design for a shear ring uses a split design with the right angle portion of the ring that gets sheared appearing in segments so that the ring can be rapidly snapped into a groove at its outer periphery followed by a retaining cap facilitating removal. | 09-11-2014 |
| 20140305627 | ANTI-WEAR DEVICE FOR COMPOSITE PACKERS AND PLUGS - A downhole packer tool having components made essentially of non-metallic engineering grade plastic materials. The tool having an apparatus for anchoring the tool in an annular structure. The tool has a mandrel; a slip assembly positioned on the mandrel, the slip assembly having at least one spacer ring and a plurality of slip elements; and at least one wear resistant insert installed in an outer surface of the tool and extending outwardly therefrom whereby the at least insert button is abrasion resistant upon setting yet has favorable drillability characteristics upon drilling the tool from the wellbore. | 10-16-2014 |
| 20150090439 | DOWNHOLE TOOL AND METHOD OF USE - Embodiments of the disclosure pertain to a downhole tool useable for isolating sections of a wellbore that includes a mandrel, the mandrel further having a body comprising an external surface, and an inner bore formed therein; a distal end; and a proximate end; wherein the mandrel is made of composite material, wherein a set of shear threads are disposed along a surface of the inner bore at the proximate end. Embodiments of the tool include a slip disposed about the mandrel, wherein the slip comprises a one-piece configuration. | 04-02-2015 |
| 20150300121 | Degradable Plug with Friction Ring Anchors - A disintegrating plug features anchoring with friction rings that are expanded during the setting to contact the tubular. The design is modular and can integrate as many friction rings as needed to fixate the plug against the anticipated treating pressures from above when a ball is landed on the seat of the plug. The friction rings can be standalone or integrated with an adjacent ramp for the next friction ring. The friction rings are made from a disintegrating material along with other parts of the plug so that when the treating procedure is completed the plugs will substantially disappear to facilitate subsequent production. A fracking application is contemplated. | 10-22-2015 |
| 20150330175 | Expansion Limiter for Expandable Seal - An expandable seal has at least one travel stop designed to engage the surrounding tubular to limit expansion of the ring shape of the seal and in so doing limit the stress of circumferential ribs that extend from the ring base shape as they engage the surrounding tubular. The travel stop can be a solid ring or segments and can have a rounded outer surface designed to engage the surrounding tubular in a flush relationship. Alternatively the outer surface can also have hardened particles for a bite into the wall of the surrounding tubular before the blunt portions of the travel stop come into contact with the inside wall of the surrounding tubular. | 11-19-2015 |
| 20160053591 | A DOWNHOLE EXPANDABLE TUBULAR - The present invention relates to a downhole expandable tubular to be expanded in a well downhole from a first outer diameter to a second outer diameter to abut against an inner face of a casing or borehole, the downhole expandable tubular having an axial extension, wherein the downhole expandable tubular is made of metal and is machined from one metal tubular blank, providing the downhole expandable tubular with at least one circumferential projection. Furthermore, the present invention relates to an annular barrier, to a downhole completion comprising a downhole expandable tubular according to the present invention, to a downhole completion comprising a well tubular structure and an annular barrier according to the present invention and to a manufacturing method for the manufacture of the downhole expandable tubular according to the present invention. | 02-25-2016 |
| 20160168945 | Radially Expandable Ratcheting Body Lock Ring for Production Packer Release | 06-16-2016 |
| 20160194932 | Rubber Sleeve Protection Ring and Downhole Plugging Apparatus | 07-07-2016 |
