Abstract: An armrest assembly includes an armrest and a lid mounted on the armrest for relative rotational movement between a closed and open positions. The lid includes a handle cradle with handle guides on opposed sides and an intermediate inner guide. A handle is located in the handle cradle for relative movement between a latch position and a release position. The handle includes a latch. The latch retains the lid in the closed position when the handle is in the latch position. The handle includes a clip that engages a slot on the lid to retain the handle in the handle cradle. The handle also includes guide channels on opposed sides. The guide channels engage the handle guides. The handle includes an intermediate inner guide space. The inner guide space engages the inner guide. The armrest assembly also includes a spring that biases the handle into the latch position.

Abstract: A vehicle door lock device includes a door handle base provided at a vehicle door and provided with a cylinder lock, and a door latch mechanism provided at the vehicle door. The cylinder lock includes a key cylinder, a paddle portion operably and detachably coupled to the door latch mechanism and configured to transmit rotation of the key cylinder to the door latch mechanism, and a support portion configured to rotatably support the paddle portion. The door latch mechanism includes a key rotor into which the paddle portion is detachably inserted. The paddle portion is supported on the support portion to displace in a far-near direction relative to the key rotor.

Abstract: An energy efficient and power versatile electro-permanent magnet system for use in a door holder unit is an electro-permanent magnet having a permanent magnet for holding a door open while unpowered and a control coils that can be pulsed powered, locally or remotely, by a pulsed capacitor control circuit for power versatility and for releasing of the door with little energy.

Abstract: A left-and-right door opening mechanism comprises a locking box assembly disposed on a refrigerator body and a hinge module disposed on a refrigerator door body. The hinge module comprises a first hinge and a second hinge. The locking box assembly comprises a locking box body and a locking plate. A first opening and a second opening are respectively formed in two sides of the locking box body. A first groove and a second groove are respectively formed in two sides of the locking plate. The locking plate moves in the locking box body to align the first opening with the first groove or to align the second opening with the second groove. The first hinge or the second hinge is disengaged from the first opening and the first groove or from the second opening and the second groove to realize door opening from the left side or the right side.

Abstract: The present invention provides a refrigerator, comprising a refrigerator body and a door body. A hinge body is disposed on the refrigerator body. A first hinge shaft and a second hinge shaft are disposed on the hinge body. A first guide groove and a second guide groove are formed in the door body. The first hinge shaft is located in the first guide groove and the second hinge shaft is located in the second guide groove. During opening of the door body, the first guide groove moves relative to the first hinge shaft and the second guide groove moves relative to the second hinge shaft, the first hinge shaft applies an acting force to the first guide groove to drive the end, away from the first guide groove, of the second guide groove to approach the second hinge shaft, so that the door body is displaced in a horizontal direction.

Abstract: A pin of a hinge system movable between a first position and a second position is provided, wherein in the first position, the pin is received within a first component and a second component. The pin includes a cylindrical body coupled to an actuator for movement along an axis between the first position and the second position. A tip is removably attached to an end of the cylindrical body. The tip is configured to contact at least one of the first component and the second component when the pin is in the first position.

Abstract: A security door hinge assembly is provided, comprising a door frame structure, having at least a head member, a first jamb member and a second jamb member, and at least one door leaf. The door leaf further comprises a leaf frame structure, having at least a top rail member, a bottom rail member, a hinge stile member and a lock stile member; an inner leaf panel, mounted to a first side of said leaf frame structure and extending past said hinge stile member, so as to form an inner leaf flange; an outer leaf panel, mounted to a second side of said leaf frame structure, opposite said first side, and extending past said hinge stile member, so as to form an outer leaf flange, and wherein, in use, said door leaf is operable between a first closed position and a second open position.

Abstract: Door hinges are disclosed that are configured to allow operators to hold a door in an open position at specific and desired angles (and for such specific and desired angles to be easily and quickly modulated by an operator). In addition, the door hinges are configured to allow an operator to easily and quickly establish a maximum angle by which the hinge—and its attached door—are allowed to be opened, i.e., how wide the hinge and door are allowed to open (which also may be easily and quickly modulated by an operator).

Abstract: A hinge includes a fixed component defining a vertical axis. The fixed component includes a first support surface with a circular lug path and a first recess formed in the first support surface at an end of the circular lug path. The hinge also includes a pivotable component pivotable about the vertical axis and translationally movable along the vertical axis. The pivotable component includes a first lug extending from the pivotable component in a first direction. The first recess receives and constrains movement of the first lug. The first support surface supports the first lug along the circular lug path and constrains translational movement of the pivotable component in the first direction as the pivotable component pivots about the vertical axis. In the open position, the pivotable component is translationally movable in the first direction and the first lug is receivable into the first recess.

Abstract: A cable guide for use with a window regulator assembly includes a body with a first rail support surface, a second rail support surface and a third rail support surface in a guide rail region and a cable support surface and a cable retention arm in a cable region. The first rail support surface is configured to be inserted through an aperture in a guide rail and be placed on a first side of the guide rail and a cable retention arm configured to receive a tensioned drive cable of the window regulator. The cable guide with the first, second and third rail support surfaces may be steadily assembled to the guide rail by utilizing the pushing force from the tensioned drive cable. The aperture is located along the guide rail such that the aperture is out of the slide path of the window carrier of the window regulator assembly.

Abstract: A cap for mounting on a hinge is described. The cap includes: a body defining a first attaching portion for attaching the body to a hinge at a first location; a second attaching portion defined by the body for attaching the body to the hinge at a second location; and a channel defined by the body wherein the body is configured to secure a rod to the hinge by trapping the rod in the channel between the body and the hinge and the channel is located between the first and second attaching portions.

Abstract: A door leading edge sensor has: a door leading edge elastic member which is attached to a front end portion of a door in a door closing direction and in which a cavity extending in a direction intersecting with the closing direction is formed therein; and a linear pressure sensitive sensor that is attached to the door leading edge elastic member and is disposed along the extending direction of the cavity. The pressure sensitive sensor has an insulator tube having such an elasticity as to be deformed in accordance with an elastic deformation of the door leading edge elastic member and plural conductive members fixed to an inner surface of the insulator tube. The plural conductive members are in a non-contact state when the insulator tube is not deformed and are in contact with each other when the insulator tube is deformed.

Abstract: A control unit for establishing a functional connection between two gearing components comprises at least one control element, which can be moved in order to switch the control unit between different switching states, wherein the at least one control element is configured to provide a retaining force between the gearing components in a first switching state, and to allow movement of the gearing components in relation to one another in a second switching state. An actuator is used to move the at least one control element. A control mechanism controls the actuator. It is provided thereby that the control mechanism is configured to activate the actuator to switch the control unit from the first switching state to the second switching state, in order to move the at least one control element to reduce the retaining force (FH) based on a predetermined delay function (VF).

Abstract: A vacuum insulated glass unit includes a first and a second glass pane and a pane bonding layer. The first and second glass panes each include a vacuum chamber side opposite an outer side. The vacuum chamber side of the first glass pane includes an etched interior surface, a glass pane periphery having a periphery surface, and a plurality of glass spacers each having an end surface. The pane bonding layer is positioned between and engaged with the periphery surface of the glass pane periphery of the first glass pane and the second glass pane and couples the first glass pane to the second glass pane. Each end surface of the plurality of glass spacers and the periphery surface of the glass pane periphery are offset from the etched interior surface such that a vacuum chamber is disposed between the first and the second glass panes.

Abstract: A temporary barrier (1) for rough openings (2) of structures during construction, such as garage doors, entry doors and windows. The barrier is constructed out of a flexible panel (5) that is attached to a frame (15) of an opening via a plurality of grommets (14) spaced apart along edges of the panel. The barrier is capable of being adapted to fit over rough openings that do not provide surfaces for direct attachment, such as concrete floors, using a cable (17). One or more zippers (21) allows the barrier to be opened for entry, exit and/or air flow.

Abstract: Coated articles include two or more functional infrared (IR) reflecting layers sandwiched between at least dielectric layers. The dielectric layers may be of or including silicon nitride or the like. At least one of the IR reflecting layers is of or including titanium nitride (e.g., TiN) and at least another of the IR reflecting layers is of or including NiCr (e.g., NiCr, NiCrNx, NiCrMo, and/or NiCrMoNx).

Abstract: A set of blinds or other window coverings can be made more safe by keeping the pull string out of reach of infants or young children. A safety disc can be secured to the pull string while a safety anchor is secured to a window frame, a door frame, a wall surface near the window covering, or other similar surface. The safety disc and safety anchor are adapted to be removably attaching to one another. In one embodiment, the safety disc and safety anchor each comprise a hook-and-loop attachment surface. In one embodiment, magnets and/or magnetic surfaces are utilized to removably attach the safety disc and safety anchor to each other. In one embodiment, the safety disc comprises a suction cup attachable to a window.

Abstract: According to some aspects, provided are curtain assemblies configured to operate in high wind environments. The curtain assembly can include first and second track guide including internal security rails. The internal securing rails moveably engage end portions of fabric stiffeners to provide stability in the curtain. In some embodiments, the securing rails include ramp portions to accommodate drift in the curtain and/or fabric stiffeners without compromising operation of the curtain.

Abstract: A curtain controller for easily assembling a bead chain thereof is provided. A bead chain turntable is disposed on an assembling terminal surface of a fixing seat. A positioning seat is combined with the fixing seat to clamp and position the bead chain turntable. A protective cover is assembled on an outer side of the positioning seat. A shielding part is disposed at one side of the protective cover to correspond to an upper edge of the assembling terminal surface of the fixing seat. A fastening groove is disposed at an outer edge of the assembling terminal surface of the fixing seat. A fastening flange is disposed on the shielding part of the protective cover to be inserted into and combined with the fastening groove. A ladder section is formed between a lower side of the fastening flange and the shielding part.

Abstract: A manually-operated window treatment system may include a roller tube, a covering material, and a semi-rigid chain assembly. The covering material may be attached to the roller tube and may be operable between a raised position and a lowered position via rotation of the roller tube. The semi-rigid chain assembly may be configured to be operated by a user to rotate the roller tube. The semi-rigid chain assembly may be configured to limit the size of a loop that can be formed by the semi-rigid chain assembly. The semi-rigid chain assembly may be operatively coupled to a drive pulley of the window treatment system. The semi-rigid chain assembly may include flexible outer housing and a stiffening rod. The flexible housing may surround and operate along the stiffening rod. The hollow chain may include multiple links that are connected together to form a continuous loop.

Abstract: The gate generally includes a gatepost, and a plurality of rails pivotally connected to the gatepost and having a plurality of posts hingedly attached thereto. Hinged attachment of the plurality of posts allows them to fold substantially parallel with the plurality of rails when they in the vertical position. The gate includes a unique lift system having a translating device in communication with a sprocket, wherein the lift system provides an adjustable force to rotate the plurality of rails from a horizontal position to a vertical position. The translating device generally includes a first end attached to the gatepost and a second end attached to one of the plurality of rails, wherein the adjustable force may be provided by a turnbuckle positioned there between. The gate may further include a ground anchor system that allows axial rotation of the plurality of rails about the gatepost.

Abstract: The present invention relates to ladders and, more particularly, various configurations of ladders including straight and extension ladders, as well as to methods relating to the use and manufacture of such ladders. In accordance with one embodiment of the present invention, a ladder is provided that includes a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. The ladder also includes a pair of lateral support members, wherein each support member is selectively displaceable in a lateral direction relative to an associated rail. Additionally, the ladder includes a pair of adjustable legs, each leg having a first end slidably coupled to an associated rail of the first pair of spaced apart rails and being slidably coupled to an associated lateral support member.

Abstract: A boat or recreational vehicle ladder apparatus is provided. One aspect of the present ladder apparatus includes an elongated extension handle including a slot adjacent a lower end thereof. Another aspect of a boat or recreational vehicle ladder apparatus provides a snap-on step tread which can be mounted to a dual-tubular ladder step structure. Another aspect of a boat or recreational vehicle ladder apparatus employs a laterally expandable ladder step which can be retrofit onto an existing ladder. A further aspect employs clasps or hooks to attach and retain a ladder step to generally vertical ladder rails in a tool-free and fastener-free manner.

Abstract: A ladder rung extension assembly includes a bracket assembly including a first pin, a second pin, a pair of mounting assemblies, a pair of first bracket portions extending between the first pin and the second pin, and a pair of angled bracket portions, each of the angled bracket portions extending between the second pin and a respective mounting assembly of the pair of mounting assemblies, a first rung extension assembly having a pivot portion rotatable about the first pin, and a second rung extension assembly having a pivot portion rotatable about the second pin. The ladder rung extension assembly may be engaged with a ladder and have an open position corresponding to the ladder in a deployed position and a closed position corresponding to the ladder in a stored position.

Abstract: A ground rod and guy stake extractor according to the present approach overcomes many deficiencies of contemporary methods, and allows for the rapid extraction of ground rods and guy stakes across a full range of environments, and at a wide range of extraction angles, with a straight pull on the item being extracted. Embodiments may be lightweight, easily transported, and operated by a single individual. Embodiments may include a winch, winch cable system, and support structure. The geometry is such that it is easy and straight forward to align the direction of pull with any rod or ground stake, and particularly for those driven into the ground within the commonly prescribed angular limits, thus assuring a continuous, steady pull of at least four feet in most embodiments. Guy stakes can therefore be easily extracted in one step, and typically ground rods (because of their length) in two steps.

Abstract: A progressing cavity pump or a positive displacement motor includes an external member having three or more lobes and an internal member extending through the external member and having one less lobe than the external member. One of the internal member and the external member rotates with respect to the other. The curvature of a profile of each of the internal member and external member is finite at all points. A ratio of a lobe volume of the external member to a valley volume of the external member enclosed between a minor external member diameter and a major external member diameter is between 0.9 and 1.2. A lobe height of the external member is related to a ratio of a minor internal member diameter to one less than the number of internal member lobes.

Abstract: A tool carrier, which is also known as a top drive or a power swivel, for a well operation rig includes link arms coupled between the rotating hook assembly and the lower pipe gripping structure, the link arms each secured to the rotating hook assembly by a first rigid connection and secured to the lower pipe gripping structure by a second rigid connection such that the link arms can extend along well center even when operating in slant. Another tool carrier includes a hinge between the mast and the main housing. The hinge permits the tool carrier to be moved into a more central position when folded onto the rig chassis for transport.

Abstract: A feed beam, a rock drilling unit and to a method of manufacturing a feed beam is provided. The feed beam includes a basic profile element, which has two or more superimposed material layers. At least one of the material layers may be made of a composite material.

Abstract: A platform based drill includes a drilling platform including a frame structure with first and second opposite ends, and first and second opposite sides. A mast supported on a pivotal connection to the drilling platform adjacent the first end of the frame structure and including an upper portion extending above the pivotal connection, and a lower portion extending below the pivotal connection. An adjusting mechanism permits the mast to be pivotally adjusted to a negative drilling angle whereby the upper portion of the mast leans in a direction extending away from the second end and toward the first end.

Abstract: A bend restrictor segment (500) for defining a minimum radius of curvature of a portion of an elongate member. The bend restrictor segment comprises a first body portion (502) and a further body portion (504). The first and further body portions are connectable to form an annular body. The first body portion further comprises a fixing assembly (510) on an outer circumferential edge (508) of the first body portion, for connecting the first and further body portions together, the fixing assembly being integrally connected with the first body portion.

Abstract: An adapter for a wired drill pipe joint includes an annular adapter body having a first end and a second end, an annular recess extending partially into the first end of the adapter body, a communication element disposed at least partially within the annular recess, wherein the second end of the adapter body is configured to releasably couple to an end portion of a first wired drill pipe joint, wherein the annular adapter body includes an arcuate key that is configured to restrict relative rotation of the adapter body with respect to the first wired drill pipe joint, wherein the annular adapter body and the communication element form a shoulder configured for engagement with a corresponding shoulder of a second wired drill pipe joint to form a rotary shouldered threaded connection between the first wired drill pipe joint and the second wired drill pipe joint.

Abstract: A system and a method for removing a portion of an electric submersible pump power cable conduit housing are provided. The method may include cutting a conduit housing of the conduit, sliding the cut conduit housing off the conduit, and squaring an end surface of remaining conduit housing. The cutting of the conduit housing is not a through cut and the sliding of the cut conduit housing off of the cut conduit is performed with a conduit housing spreader. The system may include a conduit housing cutter for cutting partially through the conduit housing of the conduit and a conduit housing spreader for pulling the portion of the conduit housing apart from a remaining conduit housing. In addition, the system may include a squaring tool to square an end surface of the remaining conduit housing relative to an axis of the conduit.

Abstract: A pipe handling system for a platform based drill includes a drilling platform with a frame structure having a first end, a second end opposite the first end, and first and second opposite sides. A mast is supported on a pivotal connection to the platform permitting the mast to be pivotally adjusted to a negative drilling angle whereby an upper portion of the mast leans in a first direction extending toward the first end of the frame structure and away from the second end of the frame structure. The mast includes a length direction and has an open cross-section with a concave side facing in the first direction and a convex side facing in a second direction opposite to the first direction. A pipe handling unit mounted to the concave side of the mast is configured to support a drill pipe within the mast when the mast is pivotally adjusted to the negative drilling angle.

Abstract: A mast assembly for a mobile drilling machine may comprise: a mast frame including a back, a first side, and a second side, the first side and the second side diverging from the back to form an open front along substantially an entire length of the mast frame; a drill motor assembly movably attached to the mast frame, wherein the drill motor assembly is configured to rotate a drill pipe; and a drill drive assembly configured to drive the motor assembly up and down along a length of the mast frame, the drill drive assembly including: a sheave assembly comprising a plurality of sheaves, wherein the plurality of sheaves include a first sheave aligned generally parallel to the first side of the mast frame and a second sheave aligned generally parallel to the second side of the mast frame.

Abstract: The present invention relates to an offshore coiled tubing system for running a coiled tubing into a subsea well offshore, comprising a well comprising a well tubular metal structure having a top and an inner face, a blowout preventer (BOP) arranged in the top of the well tubular metal structure, and a sluice having a top part for entry of coiled tubing, the BOP being arranged between the well tubular metal structure and the sluice, the sluice having a sealing unit arranged in the top part of the sluice for sealing around the coiled tubing, a vessel comprising a deck, a coiled tubing reel comprising coiled tubing, the coiled tubing having a first end, and a first driving unit for assisting in driving the coiled tubing into/from the well, the first driving unit being configured to be movable in relation to the deck to compensate for heave motion of the vessel, and a second driving unit for assisting in driving the coiled tubing into/from the well, wherein the second driving unit is movable in relation to the B

Abstract: Method for transporting drill pipes (12) to and/or from a drill string (14) of a drill rig comprising a plurality of connected drill pipes (12), the method comprising repeatingly lifting/lowering single drill pipes (12) one by one from/to a lower region (28) to/from an upper region (30) adjacent to an upper end (32) of the drill string (14). An arrangement (10) for transporting drill pipes (12) to a drill string (14) and a drill rig comprising the arrangement (10) are also provided.

Abstract: A coupling mechanism for coupling a first downhole tool to a second downhole tool includes a first portion, a second portion, and a locking device for locking the first portion to the second portion. The first portion includes a frame; a plug body movable relative to the frame; a guiding element coupled to the plug body; at least one of a hydraulic plug and an electric plug; and an actuator for moving the plug body relative to the frame. The second portion includes a receptacle body; a guide receptacle for receiving the guiding element; a respective receptacle for receiving at least one of the hydraulic plug; and the electric plug.

Abstract: A carrier assembly for a catwalk assembly includes a carrier. The carrier assembly includes a skate to move a tubular member along the carrier. The carrier assembly includes a proximity sensor positioned to detect the end of the tubular member as it moves along the carrier. The carrier assembly includes a skate position sensor. The length of the tubular member may be determined by measuring the position of the skate relative to the proximity sensor when the end of the tubular member passes the proximity sensor.

Abstract: A safety handle for use with conventional pipe tongs. The safety handle has a hand grip, as well as upper and lower flange members. The flange members beneficially define a recess for receiving (and protecting) a user's thumb. At least one attachment cavity is provided for receiving, and securely attaching the safety handle to, a tong jaw member.

Abstract: The invention provides a bit breaker comprising a plate that bounds a pipe slot. The bit breaker has two jaws that are at least generally parallel and that respectively define two working surfaces located on opposite sides of the pipe slot. The jaws are each mounted removably to the plate. In some embodiments, the invention is an assembly that further includes a pipe, tool section, tool or pipe joint received in the pipe slot. The pipe, tool section, tool or pipe joint has formed therein two crosswise grooves located on opposite sides of the pipe, tool section, tool or pipe joint. In some embodiments, the plate defines two fixed arms and a fixed base leg, with the two jaws mounted respectively against the two fixed arms. The bit breaker can have an adjustable arm such that the pipe slot can be surrounded about 360 degrees by the bit breaker.

Abstract: The invention provides a bit breaker comprising a plate that bounds a pipe slot. The bit breaker has two jaws that define two working surfaces located on opposite sides of the pipe slot. The two jaws are configured to move relative to the plate. In some embodiments, the invention is an assembly that further includes a pipe, tool section, tool or pipe joint received in the pipe slot. The pipe, tool section, tool or pipe joint has formed therein two crosswise grooves located on opposite sides of the pipe, tool section, tool or pipe joint. In some embodiments, the plate defines two fixed arms and a fixed base leg, with the two jaws mounted respectively against the two fixed arms. The bit breaker can have an adjustable arm such that the pipe slot can be surrounded about 360 degrees by the bit breaker.

Abstract: An automated pipe tripping apparatus includes an outer frame and an inner frame. The inner frame includes a tripping slips and iron roughneck. The automated pipe tripping apparatus may, in concert with an elevator and drawworks, trip in a tubular string in a continuous motion. The tripping slips and iron roughneck, along with the inner frame, may travel vertically within the outer frame. The weight of the tubular string is transferred between the tripping slips and the elevator. The iron roughneck may make up or break out threaded connections between tubular segments, the upper tubular segment supported by the elevator and the lower by the tripping slips. An automated pipe handling apparatus may remove or supply sections of pipe from or to the elevator. A control system may control both the automated pipe tripping apparatus and the elevator and drawworks.

Abstract: The present invention relates to an offshore coiled tubing system for running a coiled tubing into a subsea well offshore, comprising a well comprising a well tubular metal structure having a top and an inner face, a blowout preventer (BOP) arranged in the top of the well tubular metal structure, and a sluice having a top part for entry of coiled tubing, the BOP being arranged between the well tubular metal structure and the sluice, the sluice having a sealing unit arranged in the top part of the sluice for sealing around the coiled tubing, a vessel comprising a deck, a coiled tubing reel comprising coiled tubing, the coiled tubing having a first end, and a first driving unit for assisting in driving the coiled tubing into/from the well, the first driving unit being configured to be movable in relation to the deck to compensate for heave motion of the vessel, and a second driving unit for assisting in driving the coiled tubing into/from the well, wherein the second driving unit is movable in relation to the B

Abstract: A plug deflector includes a body having a first end and a second end opposite the first end, a tool receptacle provided at the first end and defining an internal bore having a first coupling mechanism defined on the internal bore, at least one plug provided at the second end, and a deflector surface provided at an intermediate location between the first and second ends. A system includes a Y-block positioned within a multi-lateral wellbore at a junction of a first wellbore and a second wellbore extending from the first wellbore, the Y-block having a first leg fluidly coupled to the first wellbore and a second leg fluidly coupled to the second wellbore, and a plug deflector coupled to the Y-block.

Abstract: A well plug for use in a subterranean well can include a generally tubular mandrel, a seal element positioned on the mandrel, and a setting rod releasably secured relative to the mandrel by an annular shaped shear ring or a bonded sleeve. The setting rod is releasable for longitudinal displacement relative to the mandrel in response to a predetermined shear force applied to the shear ring or bonded sleeve. A method of setting a well plug in a subterranean well can include displacing a generally tubular mandrel with a setting rod relative to an outer housing of the well plug, outwardly extending a seal element of the well plug in response to the displacing, and shearing a releasable attachment securing the setting rod relative to the mandrel, the releasable attachment comprising an annular shaped shear ring, or a bond between a sleeve and a surface.

Abstract: A multi-stage stimulating system is provided. The system is wireline deployed comprises one or more hydraulic sealing devices, hydraulic anchors and a mechanical cutter or a shifting tool, further comprising an accumulator-pump unit in the system to provide a fluid source for hydraulically actuating the sealing devices, anchors and cutter. A method is further provided of stimulating multiple intervals of a subterranean formation by running a bottom hole assembly down a wellbore casing on a wireline.

Abstract: Provided is an undersea mining base capable of corresponding with slopes and undulations of seabed ore deposits. The undersea mining base includes a seabed mineral mining device configured to form a pit in a seabed ore deposit and a platform equipped with the seabed mineral mining device and capable of self-traveling in at least one of an X direction and a Y direction.

Abstract: While a fracturing stack on a well is at fracturing pressure, receiving a perforating string in a section of the center bore of the fracturing stack. The section is a section above a fracturing head of the fracturing stack. While the fracturing stack is at fracturing pressure, sealing the section of the center bore to maintain a fracturing pressure in and below the fracturing head. Equalizing pressure in the section to atmospheric pressure. Receiving, at atmospheric pressure, a well drop in the section. Equalizing pressure in the section to pressure in the fracturing stack below the section. Releasing the well drop into the center bore of the fracturing head and to the well.

Abstract: The invention in one of its aspects provides a connection apparatus for a subsea hydraulic circuit and method of use in a sampling application. The apparatus comprises a longitudinal body configured to be removably docked with a subsea hydraulic circuit receptacle. The body comprises a plurality of radial ports axially displaced along the body, and an axial bore accommodating a spool having at least one fluid barrie. The spool and fluid barrier are actuable to be axially moved in the bore to control axial flow paths along the bore between the plurality of radial ports. The apparatus may be configured as a sampling hot stab in an application to sampling a production fluid from a subsea hydrocarbon production system.

Abstract: The present casing wiper plug system and method includes a novel top wiper plug and a dissolvable blocking element. The top wiper plug includes a rupture disk and an open tail section configured and dimensioned to receive the dissolvable blocking element. The blocking element can be dissolved by a solvent and can dissolve quickly given the size or materials of the blocking element. When used in conjunction with a bottom wiper plug and a displacement fluid, the central bores of the top and bottom wiper plugs and shoe track provide an open passage to the formation allowing future injection or fracking fluid to access the formation. The blocking element is released into a seat of the open tail section to temporarily block the passage so a casing test can be performed on the casing. After the test is complete, the blocking element is dissolved to reopen the passage.