Abstract: A running tool sets and pressure tests a bridging hanger and a packoff in a single trip. The running tool has a stem, an inner body, and a piston. The inner body is connected to the stem so that rotation of the stem relative to the inner body will cause the stem to move longitudinally. The piston is connected to the stem so that the stem and piston rotate and move longitudinally in unison. A piston engagement element is housed in the inner body and is adapted to engage the piston when the bridging hanger is set to prevent premature setting of the packoff. The piston engagement element can be disengaged once the bridging hanger is set, thereby allowing the piston to set the packoff.

Abstract: The invention provides a wellbore system comprising an expandable tubular element arranged in a wellbore formed in an earth formation whereby an annular space is present between the tubular element and a wall surrounding the tubular element. The tubular element is provided with sealing means for sealing the annular space, wherein the sealing means includes a foldable wall section of the tubular element. The fold-able wall section has a reduced bending stiffness relative to a remainder wall section of the tubular element and is deformable from an unfolded mode to a folded mode by application of a compressive folding force to the tubular element. The foldable wall section when in the folded mode comprises at least one annular fold extending radially outward into said annular space. The wellbore system further comprises a folding device for applying said folding force to the tubular element.

Abstract: Apparatus for a downhole tool in a well bore includes at least one locking mechanism and at least one sleeve. The locking mechanism is configured in a first position to prevent the upper slips from engaging the well bore wall before being positioned at the desired setting location in the well bore and is moveable into a second position that allows the upper slips to be moved into engagement with the well bore wall. A sleeve is moveable axially in the direction of the lower end of the downhole tool and configured to move the locking mechanism from its first to its second positions and also to move the upper slips axially relative to the downhole tool into engagement with the well bore wall.

Abstract: A self-actuated cyclical flow interruption valve on a deployment tool is positioned at a proximal end of a well completion assembly. Fluid is pumped though the self-actuated cyclical flow interruption valve and vented immediately distal of the valve, to return to surface of the well. A water hammer pulse is generated each time the self-actuated cyclical flow interruption valve closes, thereby generating an impact force that acts to push the completion equipment distally into the well. The continuous cyclic force of the impact facilitates placement of the completion equipment where desired in the well, including within a horizontal extension of the well. Fluid discharged through the self-actuated cyclical flow interruption valve circulates up to the surface through a vertical and inclined section of the well.

Abstract: A shaped charge pipe cutter is constructed with the cutter explosive material packed intimately around an axially elongated void space that is continued through a heavy wall boss portion of the upper thrust disc. The boss wall is continued to within a critical initiation distance of a half-cuter junction plane. An explosive detonator is positioned along the void space axis proximate of the outer plane of the upper thrust disc. Geometric configurations of the charge thrust disc and end-plate concentrate the detonation energy at the critical initiation zone.

Abstract: An apparatus and method can be used to positively retain a lockdown ring to axially secure a wellbore member in a wellhead housing. In embodiments, the wellbore member, such as a tubing hanger, can be secured by a lockdown ring having a cylindrical surface below a tapered surface. An energizing ring having a cylindrical surface above a tapered surface can be used to move the lockdown ring from an unset position to a set position, thus energizing the lockdown ring. After being energized, the two cylindrical surfaces can engage each other so that axial movement of the energizing ring, of up to a predetermined distance, does not cause the lockdown ring to move from a set position to an unset position.

Abstract: A disintegrable tubular anchoring system comprises a frustoconical member; a sleeve with at least one first surface being radially alterable in response to longitudinal movement of the frustoconical member relative to the sleeve, the first surface being engagable with a wall of a structure; a seal with at least one second surface being radially alterable; and a seat having a land being sealingly engagable with a removable plug runnable thereagainst. The frustoconical member, sleeve, seal, and seat are disintegrable and independently comprise a metal composite which includes a cellular nanomatrix comprising a metallic nanomatrix material; and a metal matrix disposed in the cellular nanomatrix. A process of isolating a structure comprises disposing the disintegrable tubular anchoring system in the structure; radially altering the sleeve to engage a surface of the structure; and radially altering the seal to the isolate the structure.

Abstract: A machine includes a spindle for storing wire, a wire passage structure having an interface coupline, a controllable drive system, a control system, and a pressure-resistant housing. The drive system is configured to feed the wire through the wire passage structure and through the interface coupling, under the control of the control system. The housing encloses the wire passage structure, the controllable drive system, and at least a portion of the control system.

Abstract: The method and apparatus involves the positioning of an arm of a wellbore tool, such that the tool moves bidirectionally in a wellbore. Techniques also include predicting and acting in advance on the mechanism of an oilfield tool inside a wellbore, enhancing bidirectional movement and operation of the tool inside a wellbore environment typically for logging the well. Such regulation or control between different sensing parts may control placement of the sensors with respect to the wellbore wall.

Abstract: An apparatus for gripping a string of well pipe being lowered into or retrieved from a well includes pipe slips defining a central bore opening having an axis. The pipe slips are configured to abut and grip a surface of a pipe passing through the central bore opening while the pipe slips are in a first position. The pipe slips are further configured to allow axial movement of the pipe when moved to a second position. The apparatus includes at least one hydraulic ram device configured to exert an axial force on the pipe slips while the pipe slips are in the first position to enhance gripping of the pipe.

Abstract: The present invention relates to a lateral junction assembly (1) for providing a lateral junction in a wellbore by being inserted into a casing (60) having an opening (61) and defining a longitudinal axis (52), the lateral junction assembly (1) having a longitudinal direction (50) which is substantially parallel to the longitudinal axis (52) and comprising a pipe module (10) comprising a pipe section (12) for being inserted through the opening (61) in the casing and a flange (11), wherein the lateral junction assembly further comprises a fixation element (25) adapted for being connected with the flange (11) to fixate the pipe module (10) in a predetermined location with the pipe section extending through the opening (61) in the casing (60).

Abstract: Embodiments of the invention generally relate to tools and methods for hanging and/or expanding liner strings. In one embodiment, a method of hanging a liner assembly from a previously installed tubular in a wellbore includes running the liner assembly and a setting tool into the wellbore using a run-in string. The setting tool includes an isolation valve and the liner assembly includes a liner hanger and a liner string. The method further includes sending an instruction signal from the surface to the isolation valve, wherein the isolation valve closes in response to the instruction signal and isolates a setting pressure in the setting tool from the liner string; and increasing fluid pressure in the setting tool, thereby setting the liner hanger.

Abstract: An expansion cone assembly (200) for setting a liner hanger. The expansion cone assembly (200) includes a cone mandrel (202) having an outer frustoconical surface (220), a lead cone (206) slidably disposed around the cone mandrel (200) having a frustoconical surface (228) with a maximum outer diameter (230) and a collapsible cone (204) slidably disposed at least partially around the outer frustoconical surface (220) of the cone mandrel (202). In an expansion configuration, the outer frustoconical surface (220) radially props the collapsible cone (204) such that it has a first maximum outer diameter (232) that is greater than the maximum outer diameter (230) of the lead cone (206). In a retrieval configuration, the collapsible cone (204) axially shifts relative to the outer frustoconical surface (220) such that it has a second maximum outer diameter (234) that is no more than the maximum outer diameter (230) of the lead cone (206).

Abstract: An apparatus and methods of spacing a tool from walls of tubing are provided as embodiments of the present invention. The apparatus can include a centralizer that is inserted in the tubing, the centralizer having inwardly arched sides or inwardly arched bow springs so that an inner diameter of the centralizer increases from a longitudinal midpoint to a longitudinal end point of the centralizer. The centralizer has a smaller diameter than the tubing so that it can be positioned inside of the tubing downstream of a seating ring in a relaxed position so that when the tool passes through the centralizer, the inwardly arched sides or inverted bow springs expand towards an inner wall of the tubing to centralize and inhibit radial movement of the tool when deployed through the inwardly arched sides of the centralizer.

Abstract: An actuation assembly (100, 300) for actuating a downhole tool (200) having a tool housing (202) and an actuation member (208). The actuation assembly (100, 300) includes a downhole power unit (100) and a stroke extender (300). A power unit housing (150) is operably associated with an extender housing (302). A moveable shaft (130) of the power unit (100) is operably associated with an extender mandrel (304). The extender housing (302) is operably associated with the tool housing (202) and the actuation member (208). The extender mandrel (304) is operably associated with the actuation member (208) such that oscillatory movement of the moveable shaft (130) relative to the power unit housing (150) causes oscillatory movement of the extender mandrel (304) relative to the extender housing (302) which causes progressive movement in one direction of the actuation member (208) relative to the tool housing (202), thereby actuating the downhole tool (200).

Abstract: Downhole apparatus for location in a bore which intersects a fluid-producing formation comprises a bore wall-supporting member configurable to provide and maintain a bore wall supporting force for a fluid-producing formation of at least 2 MPa, whereby fluid may flow from the formation into the bore. The bore wall supporting force may be utilized to modify or maintain the permeability of the rock adjacent the bore wall.

Abstract: A weight controlled slip interlock system provides increased safety for a snubbing unit. Slips for a snubbing unit is operable between an open position and a closed position, and valves actuates the slips between the open and closed positions. Weight sensors are coupled to the slips, wherein the weight sensors measures the loads on the slips to determine whether one or more of the slips are controlling the weight of a workstring. Interlocks are coupled to the valves to prevent the valves from actuating from the closed position into the open position when the corresponding slip controls the weight of the workstring.

Abstract: A subsea wellhead a generally cylindrical body including a lower extension for forming an annular space for a cement column between the lower extension and an outer conductor. The extension carries a multiplicity of interfitting rings forming a sleeve which facilitates flexure of the extension in the presence of the cement column. Each ring may comprise an inner flange for disposition adjacent the outside of the extension and an outer flange for fitment over the inner flange of an adjacent ring. The outer flange may have a radial through-bore.

Abstract: A downhole tool includes a lock for maintaining a slip in a reduced diameter position when running the tool in the well, and selectively releases the slip to move radially outward to a set position to suspend an anchored portion of the tool within a downhole tubular. The tool includes a mandrel having a through passage, with a hydraulic port within the mandrel that is closed to mandrel internal pressure as the tool is run in the wellbore. A ball seat covers hydraulic ports in the mandrel. A ball may be dropped to seat and increase pressure to open the ports. A piston moves in response to mandrel internal pressure applied through the hydraulic port to unlock the locking device, such that further movement of the piston releases the slip from the reduced diameter position to the set position.

Abstract: A method for rotating a casing string in a borehole and a mandrel casing hanger and running tool system, include a selectively engageable connection between a mandrel casing hanger and a running tool; and a rotational force may be applied to the mandrel casing hanger, running tool, and casing string, without substantially tightening a threaded connection between the running tool and the mandrel casing hanger, by transmitting the rotational force through the selectively engageable connection.

Abstract: An apparatus for carrying and releasing a liner downhole includes a tubular body; a latching member attached to the tubular body for coupling with the liner; and a release sleeve disposed between the tubular body and the latching member, wherein the release sleeve is axially movable relative to the tubular body to allow the latching member to disengage from the liner.

Abstract: 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, the second end being movable relative to the outside of the tubular. The support member includes a ramp surface that tapers in the direction of the 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 the ramping surface.

Abstract: The method of installing a plurality of casing sections in a well, that includes providing a hanger supporting the casing sections to extend longitudinally in the well, landing the hanger on structure in the well, whereby weight of the casing sections longitudinally compresses the hanger, cementing the casing sections in position in the well, below the hanger, adjusting the hanger to provide for controllable longitudinal shortening of hanger length, thereby removing exertion of casing weight on the hanger, and removing at least part of the hanger away from the well head.

Abstract: A slip device includes a housing forming an axial bore, an upper set of slips spaced axially above a lower set of slips, and a rack and pinion actuator radially moving the upper set of slips and the lower set of slips between a retracted position and an extended position to grip a tubular disposed in the bore. The upper set of slips and the lower set of slips can be oriented to resist downward movement of the gripped tubular and to permit upward movement of the gripped tubular. One of the upper set of slips and the lower set of slips can be oriented to resist upward movement of the gripped tubular and the other of the upper set of slips and the lower set of slips can be oriented to resist downward movement of the gripped tubular.

Abstract: A downhole setting tool is provided. The 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.

Abstract: A downhole apparatus having a radially expanding portion and a support structure are described. The support structure comprises an attachment means for coupling to the apparatus and a support portion configured to be deployed from a first unexpanded condition to a second expanded condition by expansion of the apparatus. In one aspect of the invention, the downhole apparatus is expanded by exposing the swellable material to at least one predetermined fluid, and the support structure abuts the swellable material in its expanded form. A method of use and its application to a well packer, a hanging member, an anchor and a centralising apparatus are described.

Abstract: The lockdown mechanism (10) and running tool (50) are provided for securing the casing hanger (12, 13) within the wellhead (14) and sealing the annulus between the casing and the wellhead. The lockdown ring (20) fixes the lockdown sleeve (40) to a wellhead in response to a lockdown piston (22). A first seal (24) energized by the running tool seals between the lockdown sleeve and the wellhead. Ball seat (30) is axially movable within the running tool, and a second seal also energized by the running tool (32) seals between the lockdown sleeve and the casing hanger.

Abstract: A slip hanger assembly for installation of casing in a wellhead, the assembly including a slip ring capable of restraining the casing in the wellhead. The assembly including a seal assembly with an inner and outer seal. The assembly also includes a hanger assembly actuator including a load ring flange, a BOP adapter including a horizontal torque provider and the BOP adapter being connectable to the wellhead, and a seal assembly actuator. The hanger assembly actuator can set the inner and outer seals independently of each other.

Abstract: A tubular locking system comprises a first wellbore tubular, an internal locking feature disposed on an inner surface of the first wellbore tubular, a second wellbore tubular, where at least a portion of the second wellbore tubular is disposed within the first wellbore tubular, a compression sleeve coupled to the second wellbore tubular, a collet coupled to the second wellbore tubular below the compression sleeve, and a shifting sleeve disposed within the collet.

Abstract: An arrangement for fixing two concentric tubes (1, 2) together by means of one or more pressure inducing members, preferably each formed as a pad (6); the member acts to press the tubes together; a support (3), preferably formed as a collar fixed inside the outer tube (1), is provided opposite the or each location of the or each member. The support is designed to maintain the circularity of the inner tube so that it can be readily withdrawn from the outer tube without jamming. This is useful for off-shore installations.

Abstract: A system or method includes providing coupler portions along a structure. The coupler portions are communicatively engageable with equipment in the structure.

Abstract: A release assembly (200) for releasing a portion of a tool string in a wellbore. The release assembly (200) includes an outer housing (202) having a fishing receptacle (206) disposed therein. The fishing receptacle (206) includes a fishing neck (208). A support assembly (214) is disposed within the housing (202). The support assembly (214) has a first position wherein the support assembly (214) engages the fishing neck (208) to prevent separation of the fishing receptacle (206) from the housing (202) and a second position wherein the support assembly (214) is disengaged from the fishing neck (208) no longer preventing separation of the fishing receptacle (206) from the housing (202). An actuator (224), disposed within the housing (202), maintains the support assembly (214) in the first position until actuation thereof allows the support assembly (214) to shift to the second position.

Abstract: A wellbore workstring. The workstring comprises a tubular string and a plurality of robots coupled to the tubular string. The robots establish a wireless communication network within a wellbore and deploy actuators to move themselves relative to the tubular string.

Abstract: A tubular anchoring system includes a frustoconical member and a sleeve with at least one first surface that is radially alterable in response to longitudinal movement of the frustoconical member relative to the sleeve. The at least one first surface is engagable with a wall of a structure positioned radially thereof to maintain position of at least the sleeve relative to the structure when engaged therewith. A seal with at least one second surface is radially alterable in response to longitudinal movement of the frustoconical member relative to the seal, and a seat is in operable communication with the frustoconical member having a land which is sealingly engagable with a removable plug runnable thereagainst. The land is longitudinally displaced relative to the sleeve in an upstream direction defined by direction of flow that urges the plug thereagainst.

Abstract: A tool setting arrangement includes a mandrel, and a tool positionable at the mandrel. The tool includes, a cone, and at least one slip in operable communication with the cone configured to radially expand to set the tool when the slip is moved relative to the cone with at least a setting load. The at least one slip has a portion configured to engage with a feature of the mandrel such that movement of the mandrel relative to the cone causes the at least one slip to move relative to the cone, at least one of the portion and the feature is configured to release at a release load to disengage the mandrel from the tool. The release load is selected to be greater than the setting load.

Abstract: A treatment plug setting tool includes, a shank, a collet attached to the shank, and a sleeve attached to the shank that is positioned and configured to provide longitudinally compressive support to fingers of the collet while allowing the fingers to radially deflect.

Abstract: A tubular anchoring system includes a frustoconical member having a first frustoconical portion and a second frustoconical portion. The first frustoconical portion is tapered in a direction opposing a direction of taper of the second frustoconical portion and slips in operable communication with the first frustoconical portion are radially expandable in response to longitudinal movement of the first frustoconical portion relative to the slips. A seal in operable communication with the second frustoconical portion is radially expandable in response to longitudinal movement of the second frustoconical portion relative to the seal, and a seat having a surface configured to be sealingly engagable with a plug runnable thereagainst.

Abstract: A lock assembly including a mandrel having at least one window therein. At least one dog corresponds to the at least one window and is radially extendable therethrough. The at least one dog is operatively arranged for engaging at least one feature of a tubular radially disposed with the mandrel. At least one seal element is arranged for sealing the mandrel with respect to the tubular and operatively positioned with respect to the at least one dog for maintaining the mandrel solely in compression against the at least one dog during fluid pressure loading on the mandrel in either longitudinal direction with respect to the lock assembly.

Abstract: A shifting tool and method of shifting a downhole device that requires only a minimal profile or no profile to engage and move the movable portion of the tool. The invention comprises a ported housing assembly and at least one friction pad alignable with said at least one port and radially movable through the port between a first pad position and a second pad position. In the second pad position, the friction pad extends outside said outer diameter of said housing assembly to engage the targeted downhole device. A mandrel positioned through the ported housing has a first section with a first outer diameter and a second section with a second outer diameter, said second outer diameter being greater than said first outer diameter. The mandrel is movable between a first mandrel position and a second mandrel position. In the second mandrel position, the second outer diameter supports the friction pads in the second pad position.

Abstract: The present invention relates to a support device for tubular equipment, such as a liner inside a well, said support device including two elements attached to each other, comprising: a) a cylindrical sleeve, made of ductile metal, the cylindrical sleeve having an external diameter slightly less than an inner diameter of the well or of a casing inserted into the well; b) a set of tabs made of hard metal, which are spaced apart from each other and integral with the cylindrical sleeve, the tabs extending downwards from the cylindrical sleeve, wherein an outer wall of the tabs is fitted with a series of notched formations, such as teeth, whereas an inner wall of the tabs has a conical form, the apex of which is turned down. Methods of using the aforementioned support device are also disclosed.

Abstract: A treatment plug includes, a metal tubular expandable into sealing and anchoring engagement with a surrounding structure, the metal tubular having a shoulder at an inner radial surface thereof, and a composite plug sealable with the metal tubular and anchorable to the shoulder

Abstract: A seal seals an annulus in a subsea assembly between a wellhead and a casing hanger landed on a shoulder within a bore of the wellhead. The seal includes a casing hanger seal ring disposed within the annulus. The seal ring engaged with an inner diameter surface of the wellhead, and engaged with an outer diameter surface of the casing hanger so that the seal ring prevents flow through the annulus. A nose ring is secured to a lower end of the seal ring so that, when the seal ring is energized, a conical surface of the nose ring engages a mating conical profile formed in the inner diameter surface portion of the wellhead and the nose ring engages a surface opposite the conical surface with a substantially smooth outer diameter surface portion of the casing hanger to limit upwards axial movement of the casing hanger.

Abstract: An apparatus (100) for depth referencing tubular strings in a wellbore. The apparatus (100) includes a depth reference coupling (102) having a profile (112) that is positioned in a first tubular string. The first tubular string has a predetermined length between the depth reference coupling (102) and a predetermined reference point. The apparatus (100) also includes an indicator assembly (118) having a mating profile (128) operable to engage the profile (112) of the depth reference coupling (102) that is positioned in a second tubular string. In operation, the second tubular string is run in the first tubular string until the mating profile (128) of the indicator assembly (118) engages the profile (112) of the depth reference coupling (102), thereby enabling reliable depth referencing of the tubular strings.

Abstract: 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.

Abstract: A system has been invented for placement of a liner in a lateral wellbore, access to which is provided through a window having a V-shaped downhole end. The system includes a running tool including an upper end through which the running tool is manipulated from surface, a lower end, a key positioned between the upper end and the lower end, the key protruding from the running tool for locating the V-shaped down-hole end of the window and a liner-engaging portion on the downhole end for releasably securing the wellbore liner to the running tool, the liner-engaging portion configured to secure the liner adjacent the key with the key protruding above the liner and the liner extending from the lower end. The invention also provides methods for placing a wellbore liner in a lateral well-bore extending from a main wellbore.

Abstract: The present invention generally relates to an expandable liner hanger capable of being expanded into a surrounding casing. In one aspect, an expandable tubular system is provided. The system includes an expandable tubular. The system further includes an expansion swage for expanding the expandable tubular, wherein the expansion swage is deformable from a compliant configuration to a smaller substantially non-compliant configuration. Additionally, the system includes a restriction member disposed on an exterior surface of the expandable tubular, wherein expansion of the expandable tubular in the location of the restriction member deforms the expansion swage from the compliant configuration to the smaller substantially non-compliant configuration. In another aspect, a method of expanding a liner hanger using a cone is provided.

Abstract: A tool for releaseably 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.

Abstract: A setting tool for setting a well tool in a wellbore includes a setting mechanism which is operative to apply a setting force to set the well tool, and an orientation indicator which indicates an orientation of the setting tool. A method of setting a well tool and engaging an assembly with the well tool includes setting the well tool in a wellbore utilizing a setting tool which includes an orientation indicator, and then engaging the assembly with the well tool, thereby fixing an orientation of the assembly relative to the well tool. A method of azimuthally orienting a whipstock in a wellbore includes setting an anchor in the wellbore, the anchor including an alignment device, and indicating an azimuthal orientation of the alignment device relative to the wellbore. The anchor setting and azimuthal orientation indicating are performed using only a single trip into the wellbore.

Abstract: A production assembly and method for controlling production from production tubing supported by a tubing hanger in a well including a wellhead. The assembly includes a function spool engaged with the wellhead and a tree engaged with the function spool. The tubing hanger is landable in the tree bore such that the production tubing is supported in the well by the tree. A function mandrel separate from the tubing hanger is engaged with the production tubing and positionable inside the function spool bore. The function mandrel includes a passage connected to a line extending into the well that is connectable with a port in the function spool such that communication with a downhole component through the line is allowable from outside the function spool.

Abstract: An accelerator mixture for peroxide hardeners, in particular an accelerator mixture for an organic peroxide-curing resin mixture, a two-component mortar system containing the same for chemical fastening and use of the same for chemical fastening of anchoring elements in boreholes are disclosed. Using a mixture of bis-N-substituted p-toluidines with bis-N-substituted anilines or bis-N-substituted m-toluidines, it is possible to provide a mortar composition for chemical fastening of anchoring elements in boreholes, which will have an improved low-temperature curing and improved load ratings at high temperatures with an extended gel time.