Class / Patent application number | Description | Number of patent applications / Date published |
166208000 | Liner hanger | 28 |
20090139710 | SWELLABLE COMPOSITIONS AND METHODS AND DEVICES FOR CONTROLLING THEM - Swellable compositions and methods of using and controlling them are disclosed. In certain examples, the swellable composition may comprise an active phase responsive to swell upon exposure to a swelling fluid. In some examples, the active phase of the swellable composition is effective to deswell in response to an applied stimulus in the presence of the swelling fluid. In other examples, the swellable composition may further comprise a passive phase responsive to swell to a lesser degree than the active phase upon exposure to the swelling fluid. Devices and systems using the swellable compositions are also described. | 06-04-2009 |
20090159268 | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore - A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. A setting mechanism connected to the slips is also located in the pocket. An actuator is mounted on the liner. As the liner is moved through the casing coupler, the actuator actuates the setting mechanism, causing the slips to move axially downward. As the setting mechanism moves downward, the slips move radially inward and grip the liner. | 06-25-2009 |
20090242192 | Casing Stabbing Guide - A stabbing guide connects to a casing collar during makeup. The stabbing guide has a housing with a lower portion with a cylindrical interior and an upper portion with a conical interior. Upper and lower shoulders are located in the cylindrical interior, defining an annular recess between the shoulders. Each of the shoulders has an inner diameter smaller than an outer diameter of the casing collar. The housing is formed in separate segments and secured around the casing collar by a clamp. | 10-01-2009 |
20090255666 | Stop Collar Friction Clamping Device - A stop collar assembly used for axially securing and/or to resist axial sliding of a downhole tool device. The assembly provided on a housing of the downhole tool and includes a generally annular ring having an inner circumference beveled outward proximate to the ring edge. A clamp ring having a raised portion on its outer surface is disposed adjacent and substantially coaxial with the annular ring. Pushing the annular ring against the clamp ring compresses the clamp ring onto the housing to resist axial sliding of the annular ring. | 10-15-2009 |
20090283255 | STROKABLE LINER HANGER - A strokable liner hanger including a liner hanger having one of a polished outside surface and a seal disposed at an outside surface thereof, and a production casing having one of a polished inside surface and a seal. The production casing being complementary to the liner hanger. A strokable liner hanger arrangement in a wellbore including a production casing having one of a polished bore and a seal and a liner hanger in operable communication with the production casing. The liner hanger having one of a polished bore and a seal and being the opposite of the production casing. A method for completing a wellbore with a strokable liner hanger arrangement. | 11-19-2009 |
20100018696 | DOWNHOLE TOOL - Disclosed herein is a device that relates to a downhole tool. The tool comprising, a tool body having first and second support portions, and at least one extendable assembly pivotally mounted between the first and second support portions. The extendable assembly is reconfigurable between a retracted configuration and an extended configuration by relative movement of the support portions. | 01-28-2010 |
20100096123 | Hydraulic Running Tool Assembly and Method of its Use - An assembly for downhole equipment deployment comprising a liner hanger, means for attachment of the liner hanger to deployable equipment, a top sub insertable into the liner hanger and attachable to a tubing string, a lock piston releasably connectable to the top sub, lock pins insertable through the top sub, the liner hanger, and the lock piston, and means for remotely releasing the liner hanger and associated equipment from the top sub and the lock piston. A method of operating a running tool assembly for deploying downhole equipment from the surface, comprising assembling a liner hanger, top sub, lock piston, lock pins, shear screws and seals into a running tool assembly, attaching the assembly to a tubing string, inserting the assembly into a hole to a desired depth, and either: a) dropping an activation ball internal to the bore of the assembly; pumping hydraulic fluid into the annular bore of the assembly; allowing build up of pressure thereby overcoming the plurality of shear screws; releasing the liner hanger from the top sub; and retrieving the top sub assembly partition from the liner hanger out of the hole; or b) manipulation of the tubing string by means of left-hand rotation; release of the liner hanger from the top sub thereby overcoming the plurality of shear screws; and retrieving the top sub assembly partition from the liner hanger out of the hole. | 04-22-2010 |
20100243238 | WELLHEAD SYSTEM HAVING RESILIENT DEVICE TO ACTUATE A LOAD MEMBER AND ENABLE AN OVER-PULL TEST OF THE LOAD MEMBER - A wellbore system comprising a housing assembly and a hanger assembly. The hanger assembly comprises an actuation member that interacts with a portion of the housing assembly when the hanger assembly is positioned at a desired location in the housing assembly. The hanger assembly also comprises a load member that is adapted to extend between the hanger assembly and the housing assembly to enable the housing assembly to support the hanger assembly. The load member is carried into the wellbore in a retracted position. When the actuation member interacts with the housing assembly at the desired location, the actuation member actuates the load member to expand outward to extend between the hanger assembly and the housing assembly. The actuation member is adapted to transfer a lifting force from the surface to the load member to enable an over-pull test of the hanger assembly to be performed. | 09-30-2010 |
20110108266 | DEBRIS BARRIER FOR DOWNHOLE TOOLS - A debris barrier assembly for use downhole includes a single body annular barrier having a bore; an extension tubular inserted through the bore; an upper tubular coupled to an upper end of the extension tubular; and a lower tubular coupled to a lower end of the extension tubular, wherein the lower tubular includes a release valve. In one embodiment, the release valve is mechanically opened. In another embodiment, a torque connection is used to couple the upper tubular to the extension tubular. | 05-12-2011 |
20110186288 | Downhole Tubular Expander and Method - A liner hanger ( | 08-04-2011 |
20110265989 | SYSTEM FOR EXCHANGING ENERGY WITH A GROUND - A system for exchanging energy with a ground is disclosed. In at least one embodiment, it includes an elongate ground bore, a flexible sealing device for separating sections of the bore and extending inside and generally all along the bore and being closed at its ends, wherein the flexible sealing device, in use, is filled with a liquid whereby the flexible sealing device is pressed against walls of the bore. The system further includes at least a first duct, and heat recovery device, wherein said the at least a first duct is operatively connected to the heat recovery device and extends into the flexible sealing device. At least one sealing device is provided at the flexible sealing device at a predefined level along the bore, which at least one sealing device is adapted to seal at the level between the flexible sealing device and the bore. | 11-03-2011 |
20120012305 | Downhole C-Ring Slip Assembly - A slip assembly ( | 01-19-2012 |
20120211222 | DEVICE FOR APPLYING AN EXPANDABLE SKIRT HAVING APPLICATION DIAMETER CONTROL UPON ADVANCE - The present invention relates to a device for laying an expansible lining in a conduit. The device may include a patch having an initial diameter less than that of the conduit, and the patch may be configured to deform by radial expansion beyond an elastic limit to an expanded diameter such that it may contact a wall of the conduit. The device may also include an expander tool axially displaceable inside the patch, and the expander tool may be configured to cause the radial expansion of the patch to an expanded diameter. The device may also include a checking member mounted in proximity to the expander tool. A section of the checking member may be calibrated so that the checking member and the expander tool are capable of passing freely inside the patch when the patch is properly expanded, and the checking member and the expander tool are unable to pass inside the patch when the patch is improperly expanded. | 08-23-2012 |
20120261116 | Expandable Liner Hanger with Helically Shaped Slips - A liner hanger uses a spirally shaped slip member that makes at least one revolution about the mandrel being expanded. The slip member is disposed in a groove with tapered end walls that approach each other during radial mandrel expansion due to shrinkage of said mandrel in the longitudinal direction. The shrinkage binds the slip to the mandrel as the slip member approaches the surrounding tubular. The tapered side walls of the groove moving together cam out the slip member into enhanced contact with the surrounding tubular to support the liner or other string below the hanger. The slip member and groove have preferably the same pitch to allow easy mounting with an applied rotational force. | 10-18-2012 |
20120292018 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
20120292019 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
20120292020 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
20130087324 | RE-LATCH MECHANISM FOR WELLBORE LINER SYSTEM - A tool for releasably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile. | 04-11-2013 |
20130092369 | Hydraulically Set Resettable Liner Hanger - A liner hanger is locked for run in to prevent accidental setting using a trapped collet assembly. The liner is internally pressurized to push a ring from which the collet extends. The collet heads leave a mandrel groove and compress a return spring while at the same time shouldering against an outer assembly that ramps the slips out on cones for a grip of the surrounding casing. Weight is released and the slips prevent the assembly attached to them from moving to hold the return spring compressed. Picking up weight releases the load on the slips of the hanger and allows the spring to retract the slips and return the collet assembly to the run in position in an exterior mandrel groove. This can be used with a relative rotation feature incorporated into the liner hanger to allow liner rotation during cementing, if desired. | 04-18-2013 |
20130284426 | Setting Tool - A downhole setting tool comprises a tool housing and a hollow mandrel, the mandrel being situated in the housing. The tool further comprises a piston situated between the mandrel and the tool housing and a collar situated between the mandrel and the tool housing, wherein the tool housing, the mandrel, the piston and the collar define an annulus. The tool further comprises a first valve, wherein in a closed position the first valve blocks a path of fluid communication between the interior of the mandrel and the annulus. | 10-31-2013 |
20140020889 | Well multiple casing installation system - Apparatus facilitating successive installation of casing sections endwise in a well, that includes hanger structure sized for installation at a well head, the hanger structure having a vertical through opening via which successive casing sections are installable vertically in the well, the hanger structure having vertically spaced shoulders for landing casing sections, there being adjustable structure for enabling controllable adjustment of hanger length, whereby uncemented casing weight is applied on the hanger structure. | 01-23-2014 |
20140116679 | OIL AND GAS RESERVOIR ELECTRIC LOGGING OVERFLOW SAFETY CONTROL WIRELINE HANGER - The present invention provides an oil and gas reservoir electronic logging overflow safety control wireline hanger which comprises a body ( | 05-01-2014 |
20140196890 | Liner Hanger/Packer Apparatus with Pressure Balance Feature on Anchor Slips to Facilitate Removal - A liner hanger/packer apparatus operates by sequential expansion of a slip ring and then a sealing element. The hanger slips are set by pressure on a seated ball actuating anchor slips to grip followed by a stroker assembly and a swage making a first movement. The ball seat is defeated and the liner is cemented. A pickup force extends landing dogs so that a subsequent set down force releases a flapper to close and closes off fluid ports associated with the anchor slips so that pressure on the closed flapper sets the anchor and strokes the swage a second stroke to set the sealing element. A rupture disc breaks in the flapper after further relative movement of mandrel components to open the fluid displacement ports so that the anchor is in pressure balance to backpressure developed from fluid moving through the now broken disc as the running tool is removed. | 07-17-2014 |
20140284048 | Thin Wall Active Casing Hanger - A wellbore system includes a housing assembly and first and second position casing hangers supported by the housing assembly. A load member is provided that is adapted to extend between the first position casing hanger and the housing assembly to enable the housing assembly to support the first position casing hanger. The second position casing hanger is stacked onto the first position casing hanger, and an interface is defined between the first and second position casing hangers to aid in alignment and centralization of the second position casing hanger during installation. The interface also provides radial support to the first position casing hanger and enables loads associated with the second position hanger to be transferred to the housing assembly through the load member. | 09-25-2014 |
20140360717 | LINER HANGER - An apparatus for suspending a liner within a bore comprising a central tubular member and first and second sets of radially expandable arms. Each set of arms are expandable by corresponding longitudinally movable cones spaced apart along the tubular member. The apparatus further includes a seal located between the first and second sets of radially expandable arms and a selectably longitudinally compressible sleeve located between the first and second sets of radially expandable arms. | 12-11-2014 |
20150068733 | Expandable Liner Hanger with Anchoring Feature - An expandable liner hanger features carbide or other hard particles adhered to the outer surface of a tubular mandrel that is expanded using vulcanized rubber to retain the carbide during run in or set. The rubber can be directly applied to the outer surface of the mandrel or to a split ring that is subsequently secured to the outer surface of the mandrel. The rubber can also be mounted in an exterior recess to protect the carbide during running in from being knocked off with impact. A binder can be applied to the carbide or to the rubber for better fixation of the carbide when vulcanizing the rubber. The rubber moves with the expanding mandrel while binding the carbide until contact of the carbide to the surrounding tubular transfers the liner string weight to the surrounding tubular through the carbide. | 03-12-2015 |
20150114622 | Wellbore Sealing Assembly with Grooves for Enhanced Sealing and Lockdown Capacity - A wellbore system includes a sealing assembly for creating an annular seal between wellbore members. The sealing assembly includes a seal body having a u-shaped cross section, with elongate grooves formed on inner and outer walls thereof. A depth of the grooves varies along a length of the grooves to allow wickers to penetrate the groove by differing degrees when the walls are urged toward the wickers. The wickers can thus provide a high degree of both sealing and lockdown performance. | 04-30-2015 |
20150345242 | Hanger Running Tool - A hanger running tool for a hanger includes an outer sleeve and an inner driving sleeve. The outer sleeve is configured to engage and couple the hanger running tool to the hanger, and the inner driving sleeve is selectively axially movable within the outer sleeve for engagement with the hanger to prevent relative rotation between the hanger running tool and the hanger. | 12-03-2015 |