Abstract: A running tool which includes a mandrel, a thread engager disposed upon the mandrel, a support supporting the thread engager in a first position and unsupporting the thread engager in a second position, and a torque dog sub including a torque dog, a lock dog, and lock dog sleeve disposed on the mandrel. A liner system which includes a liner system component, a running tool engaged with the liner component. A borehole system including a borehole in a subsurface formation, and a liner system in the borehole. A method for releasing a liner including pressuring up on the running tool, shifting the lock dog sleeve, and slacking weight to shift the support. A method for releasing a liner including applying neutral set down weight to the running tool, rotating the support, slacking weight to shift the support, and moving the tool out of engagement with the liner.

Abstract: A high expansion anti-rotation anchor catcher includes a helical track positioned on an exterior surface of a tubular body. An expandable gripper cage is provided having an axially fixed hub mounted for rotation about the tubular body and an axially movable hub mounted for rotation about the tubular body. Pivoting linkages which support outwardly oriented grippers extend between the axially fixed hub and the axially movable hub. The axially movable hub has a track follower that engages the helical track on the exterior surface of the tubular body. Rotation of the tubular body in a first rotational direction causes the track follower to move along the helical track toward the axially fixed hub, thereby placing the expandable gripper cage in compression and causing the pivoting linkages and grippers to pivot outwardly away from the tubular body to secure the anchor in position.

Abstract: A method and apparatus for removal of tools, tubulars, casing, or other components that become stuck in a well. An anchor includes a mandrel, a carrier disposed on the mandrel and movable relative to the mandrel between an extended position and a retracted position, and an insert configured to engage an internal surface of a tubular, the insert movably disposed in the carrier as the carrier moves between the extended position and the retracted position. A method for anchoring a tool in a wellbore includes deploying the tool into the wellbore through a tubular to a first position, the tool comprising an anchor having a carrier and an insert disposed in the carrier, extending the carrier towards the tubular, and moving the insert relative to the carrier while engaging the inserts with the tubular, thereby anchoring the tool in the wellbore.

Abstract: A system and method for supplying electric power to various pieces of fracturing equipment in a fracturing operation with gas powered generators. The system and method also includes switch gears, auxiliary trailers, transformers, power distribution panels, new receptacles, and cables to supply three-phase power to electric fracturing equipment. The switchgear in the power supply system is weatherproof and able to endure the wear and tear of mobilization. The novel system and method provide clean and quiet electricity to all the equipment on site.

Abstract: A vehicle seat headrest has a first sub-piece facing a seat occupant head, a second sub-piece and an energy storage device with a trigger actuator arranged between the first sub-piece and the second sub-piece. The first sub-piece is moveable relative to the second sub-piece out of a use position into a safety position along a movement direction towards the a seat occupant head as a result of an accident under the effect of a discharge of the energy storage device, which is actuated by the trigger actuator. The headrest is configured such that the volume of an expansion area is increased while the first sub-piece is moved relative to the second sub-piece as a result of an accident and by the effect of the discharge of the energy storage device. The headrest has a sealing device between the first sub-piece and the second sub-piece to delimit the expansion area.

Abstract: A lock mandrel is described herein. The lock mandrel includes an upper connector and a lower connector. The upper connector includes locking keys configured to attach the lock mandrel to a landing nipple on a tubing within a hydrocarbon well. The upper connector also includes a spring-loaded locking collar configured to prevent the locking keys from disengaging from the landing nipple by pressing radially against the locking keys from the inside when in a seated position, and allow the locking keys to disengage from the landing nipple by retracting away from the locking keys when in an unseated position. The lower connector includes a tool adaptor configured to attach a downhole tool to the lock mandrel.

Abstract: A method of anchoring a housing to an inner diameter of a tubing string can include: installing an anchoring assembly at an end of the tubing string, the anchoring assembly comprising: a body; the housing; an installation sleeve; a rotating sleeve in threaded connection with the housing and the installation sleeve; and a plurality of anchoring buttons located within a plurality of cutouts on the housing; causing movement of the body along a longitudinal axis of the tubing string towards the end of the tubing string that causes the plurality of anchoring buttons to circumvolve around a pin and an edge of the anchoring buttons lockingly engages with the ID of the tubing string after circumvolving; releasing both of the installation sleeve and the rotating sleeve from engagement with the tubing string, the body, and the housing; and removing the installation sleeve and the rotating sleeve from the anchoring assembly.

Abstract: A protection assembly for mounting in an underwater support structure includes at least one bend protection device coupled to a retaining device so that together they provide a through-going passage for receiving an elongate member which is to be protected. The elongate member passes through a support structure opening, and the retaining device is configured to be received in the support structure opening and to engage with the support structure to resist subsequent withdrawal from it. Installation of the protection assembly includes grasping the protection assembly with a releasable clamp, arranging a pulling line to pass through the support structure opening to the mechanical clamp and securing the pulling line to the mechanical clamp, drawing the retaining device of the protection assembly into the support structure opening using the pulling line and engaging the retaining device with the support structure, and releasing the clamp from the protection assembly.

Abstract: A downhole tool for engaging a downhole tubular includes a slip assembly. The slip assembly may include a slip body; a slip insert disposed in the slip body, the slip insert comprising a dissolvable metal alloy; and a plurality of gripping elements coupled to the slip insert, the gripping element configured to engage the downhole tubular.

Abstract: A releasable connection mechanism for use downhole with a tubular member includes a collet, a collet stop, and a ring housing. The collet is configured to engage the tubular member, the collet stop is axially movable with respect to the collet between a disengaged position to not engage the collet and an engaged position to engage the collet, and the ring housing is selectively axially movable with respect to the collet. In the disengaged position, the collet is configured to move with respect to the ring housing to engage the ring housing and prevent the collet from disengaging the tubular member when the collet is tensioned with respect to the tubular member. In the engaged position, the collet is configured to remain axially stationary with respect to the ring housing and disengage the tubular member when the collet is tensioned with respect to the tubular member.

Abstract: The present invention relates to a downhole device for being moved downwards in a well by fluid to assist stimulation of a production zone of the well, the well comprising a well tubular structure having a first opening and a first movable sleeve arranged opposite the first opening, and the well tubular structure having an inner diameter, the downhole device having an axial extension, and comprising: a first part comprising two projection elements having a profile matching grooves in the sleeve, and a second part comprising: a body, two anchor elements projectable from the body for anchoring the second part in the well tubular structure, and a sealing element configured to seal against the well tubular structure, the downhole device further comprising: a displacement mechanism comprising a piston movable within a piston cylinder to displace, in the axial extension, the first part in relation to the second part when anchored in the well tubular structure to operate the sleeve.

Abstract: An anchoring apparatus (110) for use in a wellbore, comprises at least one movable wall engaging member (120) for engaging a wall of a wellbore, wherein the at least one movable wall engaging member (120) is movable from a retracted position to an expanded position to engage the wall, and from the expanded position to a retracted position to disengage the wall. Provision of one or more wall engaging members (120) being movable from an expanded position to a retracted position allows the anchoring apparatus to be retrieved from the wellbore, and in particular, from an open hole.

Abstract: The disclosure provides downhole tools with shaft regions that are hardened by a compressive residual stress created when an allotropic material in a precursor region transforms from a first allotrope to a second allotrope in response to heat, while continuing to occupy the same physical space. The disclosure further provides methods of forming such downhole tools.

Abstract: A positioning tool can include a mandrel and an engagement device reciprocably disposed on the mandrel. The engagement device can include at least one engagement member and at least one landing dog. The mandrel can displace relative to the engagement device in response to engagement between the engagement member and at least one internal profile in an outer tubular string, and the landing dog can extend outward in response to displacement of the mandrel in a selected longitudinal direction relative to the engagement device. A system for use in a well can include a tubular string and a positioning tool reciprocably disposed in the tubular string. The positioning tool can include a landing dog that extends outward from a retracted position to engage one or more internal profiles of the tubular string, in response to a pattern of reciprocation of the positioning tool in the tubular string.

Abstract: Certain embodiments are directed to magnetic rheological packer systems that seal an annulus in a downhole wellbore. In one embodiment, the seal is formed from a two-part epoxy and magnetorheological composition. The epoxy and magnetorheological compositions are allowed to be shaped by a magnetic field provided by one or more magnets exerting a magnetic field to place the packer seal.

Abstract: There is provided a locator comprising a wellbore coupler including an engagement member that is biased by a biasing member for becoming disposed in a locating position within a locate profile within a wellbore, and a displacement impeding member for impeding displacement of the engagement member relative to the locate profile, while the engagement member is being supported by the displacement impeder, wherein the displacement is for effecting retraction of the engagement member from the locate profile.

Abstract: A method and apparatus for an anchor for use downhole. In one embodiment, the anchor includes an upper portion and a lower portion. In a run-in position, the anchor has a smaller outer diameter and in a set position, the anchor has a larger outer diameter. A slip assembly includes at least one slip, the slip having a longitudinal axis parallel to the longitudinal axis of the anchor and rotatable relative to the anchor along its longitudinal axis.

Abstract: A downhole tool for use in a wellbore that includes a mandrel; a first slip disposed around the mandrel, the first slip further comprising a one-piece configuration; a first cone disposed around the mandrel, and proximate to the first slip; a second slip disposed around the mandrel; a second cone disposed around the mandrel; a sealing element disposed around the mandrel, and between the first cone and the second cone; and a lower sleeve disposed around the mandrel, and proximate to the first slip. The mandrel further includes a distal end having a first outer diameter; a proximate end having a second outer diameter; wherein a relief point is formed in the proximate end.

Abstract: A locking mandrel and running tool combination for setting equipment such as flow control devices in wellbore tubing is disclosed. The apparatus uses a translatable collet to move an expander mandrel to wedge against inwardly biased locking keys to force the locking keys outward into the recesses of landing nipples in the wellbore tubing. The translatable collect is released to move only b upward shearing forces on retaining pins and the running tool is released from the locking mandrel only by upward rather than downward shearing forces on retainer pins.

Abstract: A releasable connection mechanism for use downhole with a tubular member includes a collet, a collet stop, and a ring housing. The collet is configured to engage the tubular member, the collet stop is axially movable with respect to the collet between a disengaged position to not engage the collet and an engaged position to engage the collet, and the ring housing is selectively axially movable with respect to the collet. In the disengaged position, the collet is configured to move with respect to the ring housing to engage the ring housing and prevent the collet from disengaging the tubular member when the collet is tensioned with respect to the tubular member. In the engaged position, the collet is configured to remain axially stationary with respect to the ring housing and disengage the tubular member when the collet is tensioned with respect to the tubular member.

Abstract: A selective service tool has a key prop mandrel that is slidably coupled to and extends over a cage mandrel. The lower end of the key prop mandrel has key props that extend from its lower end. A key has first and second opposing sections located about an outer perimeter and adjacent an upper end of the locator mandrel, wherein the key props are slidable with respect to the key and are positionable between the first section and the outer perimeter of the locator mandrel and the second section and the outer perimeter of the locator mandrel, respectively, when the key is in a deployed position.

Abstract: An impact tool for coupling between opposing first and second portions of a downhole tool. The impact tool may include a housing having opposing first and second ends, a first shaft extending from within the housing at the first end of the housing, a second shaft extending from within the housing at the second end of the housing, an energy storing member disposed within the housing, and a latching mechanism operable to selectively permit relative motion between the housing and the second shaft to release energy stored in the energy storing member to impart an impact to the downhole tool string.

Abstract: A settable down hole tool is of increased drillability and/or of increased expansibility. The improvement in drillability can be caused by fracturing cast iron slips into a large number of small pieces that can be circulated out of a well without further reduction in size. The improvement in expansibility can be partially caused by providing an expander cone of increased hardness thereby allowing an increased angle on the expander cone and slips. The improvement in expansibility can be partially caused by increasing the thickness of the slips.

Abstract: A downhole tool includes a deactivation member, a latching member, a release member, and a biasing member. The deactivation member includes an outer protrusion. The latching member is positioned radially-outward from the deactivation member. The latching member includes an inner protrusion and an outer protrusion. The release member includes a sleeve extending axially toward the outer protrusion of the latching member. The biasing member exerts an axial force on the latching member.

Abstract: A pin whose movement triggers setting of the borehole tool, is initially held by a collet that is supported off a surrounding housing. A spring is supported off the pin and would push a housing that locks the collet to the pin axially to unsupport the collet but for the presence of a Kevlar® wire that has an associated heater. The wire pulls the housing that locks the collet against the spring bias and has an end attached to the pin. Melting the wire allows the spring to move the housing that traps the collet to the pin. At that point hydrostatic pressure can move the pin to either open a port on the borehole tool to set it hydrostatically or to move an actuation rod attached to the pin to set the borehole tool mechanically or with a combination of mechanical and hydraulic force.

Abstract: A downhole system for use in a wellbore that includes a work string having a downhole end; a setting sleeve coupled with the downhole end; and a downhole tool engaged with the setting sleeve during run-in, the downhole tool further including a mandrel, a first slip, a first cone, a sealing element, and a lower sleeve coupled with the mandrel.

Abstract: A shifting tool for use in a wellbore includes a tubular housing having a bore formed therethrough; a tubular mandrel disposed in the housing and longitudinally movable relative thereto; and an engagement member moveable relative to the housing between an extended position, a released position, and a retracted position, wherein: the engagement member is movable from the retracted position to the extended position in response to movement of the mandrel relative to the housing, and the engagement member is further movable from the extended position to the released position in response to movement of the mandrel relative to the housing.

Abstract: Wire retrieval device to cut and recover wire or cable from a well. The wire retrieval device is suited for, among other applications, the retrieval of metallic, non-metallic, or composite wires from a wellbore. A method and system for retrieving a wire or cable from a well using a wire retrieval tool operable to cut a downhole wire and retain the cut segments in a holding cavity within the tool.

Abstract: A downhole tool anchor is disclosed. In one implementation, a downhole anchor tool may include a housing, an axial drive in the housing, a rack connected to the axial drive, a pinion in the housing, the pinion having teeth that engage teeth on the rack, a gear tube within the pinion, the gear tube having internal threads, a slip rod having external threads that engage the internal threads within the gear tube, and a radial bearing coupled to the gear tube, the radial bearing having a slip rod alignment member that prevents the slip rod from free spinning in the gear tube.

Abstract: The disclosure provides a lubricator system and method for entering the oil/gas wellhead or casing head with a wireline and tool while being able to safely shut or contain well pressure build up. The lubricator is coupled with a lubricator cutting flapper valve and can be attached to a wellhead on the oil/gas well, so that the lubricator extends below the wellhead. The wellhead can be opened, allowing the wireline and tool to enter into the bore. The tool is attached to a wireline cable that is controlled on the surface by means of a spooled drum attached to a portable or mobile machine or equipment. The lubricator cutting flapper valve includes structure that can sever the wireline and seal the lubricator to avoid allowing well gas or fluids to escape if necessary.

Abstract: A compact and simplified frac plug apparatus is provided with improved drillability. The frac plug includes an annular wedge, a sealing ring, and an annular slip. An adapter kit apparatus is provided for connecting the plug assembly to a setting tool. Methods of operation for setting the plug apparatus in a well are also disclosed.

Abstract: A downhole tool for use in a wellbore, the downhole tool including a mandrel further comprising a first end and a second end. The second end includes a first outer surface area and a second outer surface area. The first outer surface area further includes at least one rounded segment that has a radius of curvature in longitudinal cross-section.

Abstract: Apparatus and methods for the installation of pipe pilings into the ground for use as structural building foundations, geothermal piles, or both, are disclosed. In addition to specialized fittings for pipe pile assemblies, the inventions include specialized drive mechanisms used in conjunction with rotary or vibratory motors. Methods of installing pipe pilings are further improved with the disclosure of methods of adding grout or similar materials during or after installation of the piles.

Abstract: An outer casing string, including a surface casing head, and associated installation method. In some embodiments, the surface casing head includes an outer tubular member insertable through a diverter of an installed conductor system, an inner tubular member at least partially disposed within and moveable relative to the outer tubular member, and a sleeve ring rotatably coupled to the inner tubular. The outer tubular member has an annular recess. The sleeve ring includes a snap ring that is displaceable between an extended position and a retracted position. In the extended position, at least a portion of the snap ring is received within the annular recess, and the outer tubular member is axially immovable relative to the inner tubular member. In the retracted position, no portion of the snap ring is received within the annular recess, and the outer tubular member is axially moveable relative to the inner tubular member.

Abstract: A locating assembly includes an inner mandrel and an outer mandrel. The outer mandrel is connected to the inner mandrel via a frangible device. The locating assembly also includes a positioning device connected to the outer mandrel. Further, the locating assembly is directly or operatively connected to a tool, and the tool is located within a wellbore. An application of a first downward force causes the positioning device to move to a first position, and, when the positioning device is in the first position, the tool is located and maintained in a first position. An application of a second downward force causes the inner mandrel to move relative to the outer mandrel into a second position, and, when the inner mandrel is in the second position, the tool is located and maintained in a second position.

Abstract: A method for pre-tensing sections of concentric tubulars in a wellbore. The method can include mechanically coupling an inside tubing pipe to an inside tubing string disposed in the wellbore. The method can also include mechanically coupling a second tubing to a second tubing string disposed in the wellbore. The method can further include suspending, by the first tubing, the first tubing, the first tubing string, the second tubing string, and the second tubing. The method can also include inserting, while suspending the first tubing, the first tubing string, the second tubing string, and the second tubing by the first tubing, a first slip into the first space between the first tubing and the second tubing. The method can further include inserting the first tubing, the first tubing string, the second tubing string, the second tubing, and the first slip further into the wellbore.

Abstract: A fracturing system includes a fracturing spool that mounts onto a wellhead assembly for injecting fracturing fluid into a well beneath the wellhead assembly. An isolation sleeve is included with the fracturing system that couples to the fracturing spool and extends into the wellhead to isolate and protect portions of the wellhead assembly from the fracturing fluid. A seal is between the isolation sleeve and bore of the wellhead assembly, which is threaded to the isolation sleeve. Manipulating the threaded connection between the isolation sleeve and seal selectively positions the isolation sleeve to designated axial positions within the wellhead assembly.

Abstract: A down hole tool or plug includes a segmented back up ring acting to minimize extrusion of a seal in an axial direction thereby promoting radial expansion of the seal into engagement with the internal diameter of a casing string. The segments of the ring are joined to a ring body having a passage thereby by a junction having, as its outer dimension, the outside diameter of the tool and an inside dimension provided by a groove opening into the passage.

Abstract: A slip for a tangentially loaded retrievable slip system includes a frame including an interior having first and second sides; and, a key having a first portion within the interior of the frame. The first portion of the key movable within the interior of the frame; wherein the key is movable from a set condition with at least a contact point of first and second sides of the first portion of the key pushing against at least a portion of the first and second sides of the interior of the frame in the set condition to an unset condition with the first and second sides of the first portion of the key releasing pressure from the first and second sides of the interior of the frame. Also included is a method of managing a tangential load imparted by a tangential slip system.

Abstract: A settable down hole includes a set of metal slips which include intersecting zones of weakness in the metal which fracture into a large set of pieces during setting of the tool so the pieces can be circulated out of a well without further reduction in size. One zone of weakness is a closed bore passage extending axially through one or more of the slip segments. An expander cone of increased hardness allows an increased angle on the expander cone and slips.

Abstract: A system and methodology facilitates conveyance of a tool, e.g. a downhole completion or completion component, via a tool string. The tool string comprises a contraction joint designed to contract if the tool incurs sufficient axial loading. The contraction joint may comprise an outer housing and a mandrel slidably received in the outer housing. The contraction joint also comprises a resettable locking member which selectively releases the mandrel with respect to the outer housing to contract the contraction joint when under sufficient axial loading.

Abstract: A design for a bridge plug wherein the slip elements include an outer contact portion to engage a surrounding tubular member and an inner body portion designed to easily disintegrate during removal of the bridge plug by subsequent milling. The inner body portion is formed of a softer material than the outer contact portion. Also, the inner body portion is made up of a plurality of segments that are readily separated and dispsersed during milling out.

Abstract: A latch assembly for a diamond core drill wire line. Included is a cylindrical main body having a main body interior, an outer wall, a main body end and a latch end. A ball hole is defined through the main body. An inner shaft ball lock is contained within the main body. A spring is disposed on the inner shaft ball lock. A main body top is attached to the main body end to contain the inner shaft ball lock within the main body and limit upstream movement of the inner shaft ball lock. A steel ball is then captured between the inner shaft ball lock and the outer wall of the main body such that upon axial movement of the inner shaft ball lock the ball penetrates up through the outer wall to extend past the main body to thereby latch onto an outer tube assembly.

Abstract: 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.

Abstract: Embodiments of the disclosure pertain to a metal slip for a downhole tool that may include a slip body; an outer surface comprising gripping elements; and an inner surface configured for receiving a mandrel. In aspects, slip body may include at least one hole formed therein, and a buoyant material may be disposed in the hole.

Abstract: An expansion system including a mandrel slidably coupled to plurality of primary cone segments that are interleaved with a plurality of secondary cone segments. The expansion system has a the first position wherein the primary cone segments and secondary cone segments are in a retracted position, a second position wherein the primary cone segments are in an expanded position and the secondary cone segments are in a retracted position, and a third position wherein the primary cone segments and the secondary cone segments are in an expanded position. When the expansion assembly is disposed within a tubular member and in the second position, the primary cone segments expand the tubular member into a tri-lobe cross-sectional shape.

Abstract: A technique enables anchoring of a tool in a wellbore. The technique provides traction against a well component without creating high stress concentrations that weaken the well component. An anchoring device comprises anchoring members that are selectively movable to an expanded configuration for anchoring the tool. The anchoring members have traction surfaces able to selectively engage a smooth anchoring surface of the well component at any desired location along the well component. Each traction surface is formed to facilitate traction while minimizing stress concentration.

Abstract: An anchoring system for use with a downhole tool includes a body with anchor members mounted on the body that pivot radially outward from the body and into engagement with an inner surface of a tubular. Curved slots are provided along a portion of the members and a sliding block has a protrusion that projects into the slots. The slots are curved so that when the block is urged axially within the body, the interaction between the slots and protrusions pivots the members radially outward. A piston is urged through the body to drive the block. Optionally, an elongate helical gear may cooperate with grooves formed in an edge of the members so that rotating the gear pivots the members radially outward.

Abstract: A method for estimating a steady state response of a drill string in a borehole includes calculating a first displacement of the drill string in a frequency domain for a first excitation force frequency and a number of multiples of this frequency using an equation of motion of the drill string. The equation of motion has a static force component, an excitation force component, and a non-linear force component with respect to at least one of a deflection and a derivative of the deflection of the drill string. The method further includes: transforming the first displacement from the frequency domain into a time domain; calculating a non-linear force in the time domain; calculating a frequency domain coefficient derived from the calculated non-linear force in the time domain; and calculating a second displacement of the drill string in the frequency domain using the equation of motion and the frequency domain coefficient.

Abstract: The present invention provides a system for anchoring an expandable tubular to a borehole wall. The system comprises a support member having a first end fixed relative to the outside of the tubular and a second end comprising a ramping surface. An anchor member has a first end fixed relative to the outside of the tubular and a second end extending toward the support member, said second end being movable relative to the outside of the tubular. Said support member includes a ramp surface that tapers in the direction of said anchor member. Expansion of the portion of the expandable tubular between the first support end and the first anchor end causes the axial device length to shorten, wherein the difference in length is sufficient to cause the second anchor end to move radially outward and engage the borehole wall as a result of engagement with said ramping surface.