Abstract: An apparatus for overriding a valve actuator to move a valve stem to a second position includes an override body with a central axis. A piston is located within the override body. A bushing is non-rotatably carried within the override body. An override shaft is in threaded engagement with the bushing and extends through a sealed orifice in the override body. Fluid pressure applied to the piston causes the bushing to engage the valve actuator and push the valve stem, and alternatively, rotation applied to the override shaft causes the bushing to move linearly to engage the valve actuator and push the valve stem.

Abstract: A system includes an actuator housing having a plurality of adapter lugs extending radially inward toward an axis, each adapter lug of the plurality of adapter lugs secured to the housing via a respective connector. The system also includes a bonnet having a plurality of bonnet lugs extending radially outward away from the axis, each bonnet lug of the plurality of bonnet lugs being separated by a respective space, the space being sized to permit axial movement of an adapter lug of the plurality of adapter lugs toward a lower flange arranged axially lower than the plurality of bonnet lugs.

Abstract: A valve assembly having a dynamic stem seal assembly includes a valve stem for moving a valve member from a closed position to an open position, the valve stem extending through a stem opening of a valve assembly body and having an axis. A packing assembly seals between the valve stem and the stem opening. The packing assembly has a seal assembly circumscribing the valve stem. The packing assembly also has a packing retainer assembly releasably secured to the valve stem. The packing assembly is axially static relative to the valve stem.

Abstract: A system for securing a valve actuator to a valve assembly includes an actuator housing with a plurality of housing lugs protruding radially. A cylinder assembly is located within the actuator housing and has a horseshoe connector to engage a valve stem nub of a valve stem and transfer axial movement of the horseshoe connector to axial movement of the valve stem. A bonnet has a plurality of bonnet lugs protruding radially from the bonnet to define a plurality of bonnet slots therebetween, wherein each of the plurality of housing lugs are sized to pass axially through a respective one of the plurality of bonnet slots when the actuator housing is in a released position, the actuator housing being rotatable to a locked position such that the plurality of bonnet lugs prevent axial movement of the actuator housing in at least one direction.

Abstract: A bonnet assembly for assisting to move a valve stem to a retracted position includes a bonnet body. The bonnet body has a bonnet valve end selectively connected to a valve, a bonnet actuator end opposite the bonnet valve end selectively connected to a valve actuator. A valve stem extends through the central bore of the bonnet body. A booster piston seal circumscribes the valve stem and engages an inner diameter of the central bore. The booster piston seal selectively defines an extent of a pressure cavity containing pressure media. An effective stem pressure surface faces in a direction towards the valve and is in fluid communication with the valve when the bonnet body is connected to the valve. A booster pressure surface faces in a direction towards the valve when the bonnet body is connected to the valve and is selectively acted on by the pressure media.

Abstract: An overpressure safety system for use with a distribution of pressurized fluid associated with hydrocarbon production operations includes a safety valve in fluid communication with a main bore of a fluid control manifold assembly. The safety valve has a blocking condition where the safety valve blocks a flow of pressurized fluid through the safety valve, and a venting condition where the safety valve provides a fluid flow path for the pressurized fluid at a set overpressure to pass through the safety valve. A valve member is moveable within the safety valve between a first position where a pressure side of the valve member blocks the flow of the pressurized fluid at a pressure below the set overpressure from passing through the safety valve, and a second position where the valve member provides a fluid flow path for the pressurized fluid at any pressure to pass through the safety valve.

Abstract: A system for securing a valve actuator to a valve assembly includes an actuator housing with a plurality of housing lugs protruding radially. A cylinder assembly is located within the actuator housing and has a horseshoe connector to engage a valve stem nub of a valve stem and transfer axial movement of the horseshoe connector to axial movement of the valve stem. A bonnet has a plurality of bonnet lugs protruding radially from the bonnet to define a plurality of bonnet slots therebetween, wherein each of the plurality of housing lugs are sized to pass axially through a respective one of the plurality of bonnet slots when the actuator housing is in a released position, the actuator housing being rotatable to a locked position such that the plurality of bonnet lugs prevent axial movement of the actuator housing in at least one direction.

Abstract: Embodiments of the present disclosure include a valve assembly including a supply housing with a first bore and an injectable housing coupled to the supply housing with a second bore. The valve assembly further includes a piston extending through at least a portion of the first and second bores, the piston being reciprocable axially along a longitudinal axis. The valve assembly also includes a first inlet at a first end of the supply housing for directing a working fluid toward a first end of the piston. The valve assembly includes a second inlet extending through the injectable housing toward a cavity that receives an injectable material. The valve assembly also includes a second outlet at a second end of the injectable housing that directs the injectable material out of the injectable housing as the piston moves axially along the longitudinal axis.

Abstract: Embodiments of the present disclosure include a method of replacing valve operation methods during fracturing operations including installing a first operator on a first valve of a first fracturing tree. The method also includes installing a second operator on a second valve of a second fracturing tree, the second fracturing tree being adjacent the first fracturing tree. The method also includes removing the first operator from the first valve, the first valve maintaining a position on the first fracturing tree after the first operator is removed. The method further includes removing the second operator from the second valve, the second valve maintaining a position on the second fracturing tree after the second operator is removed. The method also includes installing the first operator on the second valve after the first operator is removed from the first valve and after the second operator is removed from the second valve.

Abstract: A valve assembly includes a valve body with a flow passage intersected by a valve cavity. A valve member is axially movable in the valve cavity between a closed position and an open position, the valve member having an opening that registers with the flow passage when the valve member is in the open position. A valve stem is threadingly connected to the valve member, the valve stem rotatable to move the valve member between the closed position and the open position. A collar assembly is located within a slot of the valve member and circumscribes the valve stem, the collar assembly having an annular collar shoulder. The valve stem has an annular load shoulder sized to engage the collar shoulder, limiting axial movement of the valve member.

Abstract: An apparatus for actuating a valve includes a first actuator having a first actuator housing and second actuator with a second actuator housing. A first plate is positioned within the first actuator housing and a second plate is positioned within the second actuator housing. An intermediate stem extends from a first pressure chamber of the first actuator housing to the second plate. A pressure media path extends through the intermediate stem and a second seal nut that extends into the second plate, the pressure media path providing fluid communication between the first pressure chamber, and a second pressure chamber of the second actuator housing. An injection port is open into one of the first pressure chamber and the second pressure chamber. The first plate and the second plate are movable in response to pressure media injected into the injection port, for actuating the valve.

Abstract: A locking apparatus for attaching to an end of a valve actuator includes an assembly body, the assembly body releasably securable to a valve actuator. The assembly body has a stem bore for receiving an actuator stem, and a plunger orifice through a sidewall of the assembly body. An immobilizer assembly has a plunger extending through the plunger orifice, and biased radially outward and moveable between a radially inner position where the immobilizer assembly extends over the stem bore, and a radially outer position where an inner end of the immobilizer assembly is radially outward of the stem bore. A segmented housing circumscribes the assembly body and is moveable between a first position where the plunger is in the radially outer position and a second position where the plunger is in the radially inner position. A fusible band selectively retains the segmented housing in engagement with the immobilizer assembly.

Abstract: A valve assembly having a dynamic stem seal assembly includes a valve stem for moving a valve member from a closed position to an open position, the valve stem extending through a stem opening of a valve assembly body and having an axis. A packing assembly seals between the valve stem and the stem opening. The packing assembly has a seal assembly circumscribing the valve stem. The packing assembly also has a packing retainer assembly releasably secured to the valve stem. The packing assembly is axially static relative to the valve stem.

Abstract: An apparatus for directing a fluid from an inlet to one of a plurality of outlets that are associated with a wellhead assembly includes a block body having a block inlet and a plurality of block outlets. A selector plug is located within the block body, the selector plug having a plug inlet aligned with the block inlet along a central axis, a plug outlet at an angle relative to the central axis, and a plug bore extending from the plug inlet to the plug outlet. A stem member is moveable to selectively rotate the selector plug within the block body so that the plug outlet aligns with one of the plurality of block outlets, providing a fluid flow path from the block inlet to such one of the plurality of block outlets, and impeding fluid communication from the block inlet to the others of the plurality of block outlets.

Abstract: A system for securing a valve actuator to body of a valve assembly includes an actuator housing having housing lugs protruding radially to define a plurality of housing slots therebetween. A bonnet has bonnet lugs protruding radially to define a plurality of bonnet slots therebetween. Each of the housing lugs are sized to pass axially through a respective one of the bonnet slots when the actuator housing is in a released position and, after passing through the bonnet slots, the actuator housing is rotatable to a locked position where at least a portion of one or more of the housing lugs is axially aligned with a portion of a respective bonnet lug to prevent axial movement of the actuator housing, the actuator housing rotating less than one full revolution between the released and locked positions. A securing mechanism prevents relative rotation between the actuator housing and the bonnet.

Abstract: A valve assembly having a dynamic stem seal assembly includes a valve stem for moving a valve member from a closed position to an open position, the valve stem extending through a stem opening of a valve assembly body and having an axis. A packing assembly seals between the valve stem and the stem opening. The packing assembly has a seal assembly circumscribing the valve stem at a portion of the valve stem with a reduced outer diameter. The packing assembly also has a packing retainer assembly releasably secured to the valve stem at the portion of the valve stem with the reduced outer diameter. The packing assembly is axially static relative to the valve stem.

Abstract: A valve assembly includes a valve body with a flow passage intersected by a valve cavity. A valve member is axially movable in the valve cavity between a closed position and an open position, the valve member having an opening that registers with the flow passage when the valve member is in the open position. A valve stem is threadingly connected to the valve member, the valve stem rotatable to move the valve member between the closed position and the open position. A collar assembly is located within a slot of the valve member and circumscribes the valve stem, the collar assembly having an annular collar shoulder. The valve stem has an annular load shoulder sized to engage the collar shoulder, limiting axial movement of the valve member.

Abstract: An apparatus for actuating a valve includes an actuator body with a central body axis and a proximal end and a distal end, the proximal end having a connector selectively connectable to a valve assembly. An actuator stem extends along the central body axis. A torsional spring assembly has at least one torsional spring with a spring axis that is offset at an angle from the central body axis. A motion translator engages an inner end of the torsional spring assembly and the actuator stem, selectively converting rotation of the at least one torsional spring about the spring axis of the at least one torsional spring to linear movement of the actuator stem along the central body axis.

Abstract: An apparatus for sealing at least one hub bore of a multi-bore fluid hub associated with a wellhead assembly includes a plug body having a plug bore opening on an outer mating surface. A plug bore extends from a first end of the plug body to the plug bore opening. The plug body is selectively insertable into a hub housing of the multi-bore fluid hub. An insert is in engagement with the outer mating surface and is moveable relative to the plug body between an unengaged position, and an engaged position where the insert seals across one of the hub bores. A stem member is coupled to the plug body and is moveable to selectively rotate the plug body within the multi-bore fluid hub so that the plug bore opening aligns with one of the hub bores and the insert aligns with another of the hub bores.

Abstract: A system for securing a valve actuator to body of a valve assembly includes an actuator housing having housing lugs protruding radially to define a plurality of housing slots therebetween. A bonnet has bonnet lugs protruding radially to define a plurality of bonnet slots therebetween. Each of the housing lugs are sized to pass axially through a respective one of the bonnet slots when the actuator housing is in a released position and, after passing through the bonnet slots, the actuator housing is rotatable to a locked position where at least a portion of one or more of the housing lugs is axially aligned with a portion of a respective bonnet lug to prevent axial movement of the actuator housing, the actuator housing rotating less than one full revolution between the released and locked positions. A securing mechanism prevents relative rotation between the actuator housing and the bonnet.