A valve apparatus comprises a valve body defining a flow path therethrough, a valve member mounted within the valve body, and an actuator assembly mounted internally within the valve body. The actuator assembly comprises a piston bore and piston member defining a piston chamber therebetween, wherein at least one of the piston bore and piston member is engaged or associated with the valve member such that the valve member is moveable in accordance with fluid pressure within the piston chamber to selectively occlude the flow path.

The present disclosure provides a bore selector device (10) comprising a housing (11) defining a bore (20) extending therethrough, the bore having a main longitudinal axis. The bore selector device also comprises at least a first and a second actuator (13) opposite each other. Each of the first and second actuators being moveable between respective retracted and extended positions in a direction perpendicular to the main longitudinal axis. Each actuator is connected to a respective ram (12) such that the rams are each moveable between respective retracted positions and extended positions in a direction perpendicular to the main longitudinal axis. Each actuator and attached ram is moveable in the same linear direction.

A closing unit system for a blowout preventer (BOP) stack includes a first fluid reservoir, a first power source, a first pump system fluidly coupled to the first fluid reservoir and electrically coupled to the first power source, and a valve manifold fluidly coupled to the first pump system via a closing unit hose assembly and configured to couple to the BOP stack. The closing unit system also includes one or more processors that are configured to receive an input indicative of an instruction to adjust an actuator associated with the BOP stack, and instruct the first power source to provide power to the first pump system to cause the first pump system to pump a fluid from the first fluid reservoir to the valve manifold in response to the input.

A closure device for cutting a tubular member includes a housing, and a cutting member disposed in the housing, wherein the cutting member is coupled to a heating element, wherein the cutting member is configured to transfer heat to a tubular member from the heating element to cause a loss of mechanical integrity of the tubular member as the cutting member physically engages the tubular member.

The present application pertains to a swivel insertable into a casing ram. The swivel comprises an inner mandrel having an upper end section and a lower end section configured to be operably connectable and rotatable with an upper workstring section and a lower workstring section, the inner mandrel comprising a longitudinal passage forming a continuation of a passage in the workstring. An outer housing is configured to seal the inner mandrel inside the outer housing. The outer diameter of the outer housing and the length of the outer housing is configured to fit a casing ram. In contrast to prior art tools placed within annular blowout preventers which have limited differential pressure ranges, the instant device allows for differential pressure during operation as high as 10,000 psi or more. The instant devices also may allow for aggressive frac pack treatments and facilitate reverse out operations.

A system and method for shutting in a wellbore in the event that primary blow-out preventer (BOP) system fails. The system comprises a smart-BOP shear ram system that operates independently and autonomously from the primary BOP system and that includes a pneumatically actuated shear ram installed on top of the primary BOP preventers. A dedicated control system and pneumatic pump are encased inside one or more explosion proof boxes. The control system detects primary BOP failure using sensors located above and below the primary BOP shear ram and actuates the smart-BOP shear ram accordingly. The control system is configured such that, activation of the primary BOP stack automatically activates the smart-BOP shear ram system and the control unit assumes autonomous control over operation of the smart-BOP shear ram until the control unit confirms that a complete seal has been made against the wellbore fluids.

A blowout preventer system including a lower blowout preventer stack comprising a number of hydraulic components, and a lower marine riser package comprising a first control pod and a second control pod adapted to provide, during use, redundant control of hydraulic components of the lower blowout preventer stack where the first and the second control pods are adapted to being connected, during use, to a surface control system and to be controlled, during use, by the surface control system. The blowout preventer system further including at least one additional control pod connected to at least one additional surface control system and to be controlled, during use, by the additional surface control system.

A shear ram system includes an upper block coupled to a first arm, the upper block positioned to transition from a first location outside a bore to a second location within the bore, the upper block including an upper blade having a cutout formed at a radially outward end, the cutout having a cutout profile. The shear ram system also includes a lower block coupled to a second arm, the lower block positioned to transition from the first location outside the bore to the second location within the bore, the lower block including a gap control arm including a wear insert arranged axially higher than a lower blade, the gap control arm having an arm profile that substantially conforms to the cutout profile. The wear insert of the gap control arm is configured to engage the cutout when the upper block and the lower block are moved to the second location.

The present invention provides a dual interlocking v-shaped shear ram assembly comprising an upper ram and lower ram, each defining a v-shaped cutting surface. A plurality of angled surfaces on the upper ram and lower ram engage to form an interlocking connection that prevents rotation of either the upper ram or lower ram in the ram cavity and seals the wellbore. The upper ram has a surface along 90% to 100% of the length thereof that conforms to the surface of the corresponding ram cavity.

A BOP system is provided with sensors distributed along a length of a subsea blowout preventer to monitor objects within a blowout preventer and measure critical parameters. A subsea computer is programmed to detect a speed and direction of an object within the BOP. The computer is programmed to detect movement of an object that is not produced by the drilling rig.