Abstract: The present disclosure provides a latch system that is activated internally after installation in a tubular member and requires no external penetration through a wall of the tubular member. The latch system and the tool on which it is installed includes an energizing ring and a lock ring resting on a portion of the tool, where the energizing ring can be pressed toward the lock ring to expand the lock ring radially outward and lock into an internal lock groove in a bore of the tubular member. A self-locking mechanism using corresponding profiles in the components can, with the lock ring expansion, longitudinally lock the energizing ring with the lock ring and lock the energizing ring with the tubular member. The dual locking of the three components locks or otherwise restrains the components together, so that the tool is fixed in a longitudinal position relative to the tubular member.

Abstract: The present disclosure provides a modular linear actuated valve having a lower body module that can interface with an interchangeable upper linear actuator module being at least one of a mechanical linear actuator module and a fluid linear actuator module. The invention includes a quick disconnect between the body module and any of the actuator modules. An actuator assembly on the selected actuator module can be coupled to the valve stem on the lower body module using a quick disconnect segment on the actuator module and a reciprocal quick disconnect segment on the body module. A valve can be quickly converted into a mechanical linear actuated valve or a fluid linear actuator valve, simplifying manufacturing and stocking, and providing a faster response to customer orders.

Abstract: The present disclosure provides a latch system that is activated internally after installation in a tubular member and requires no external penetration through a wall of the tubular member. The latch system and the tool on which it is installed includes an energizing ring and a lock ring resting on a portion of the tool, where the energizing ring can be pressed toward the lock ring to expand the lock ring radially outward and lock into an internal lock groove in a bore of the tubular member. A self-locking mechanism using corresponding profiles in the components can, with the lock ring expansion, longitudinally lock the energizing ring with the lock ring and lock the energizing ring with the tubular member. The dual locking of the three components locks or otherwise restrains the components together, so that the tool is fixed in a longitudinal position relative to the tubular member.

Abstract: A gate valve system for controlling fluid flow having a valve body with a bore through which fluid can flow. The system may include a hydra seal assembly for forming a tight seal against the gate of the valve. A programmable logic controller (PLC) may further control the operation of the gate and the hydra seal assembly, and a frac stack may be remotely and automatically controlled for remote operation.

Abstract: A blowout preventer includes a housing, a ram block carrier which moves within the housing, and one or more ram blocks configured to be placed within the ram block carrier. The ram block carrier may include an opening, an upper shelf within the opening configured to hold an upper ram block, and a lower shelf within the opening configured to hold a lower ram block. The housing may include a central bore, cavities on both sides of the bore, and openings which allow ram blocks to access a pipe within the bore.

Abstract: A blowout preventer assembly is provided and is generally configured having an upper housing, a lower housing with a plurality of internally interconnected cylinders, a one piece energizing ring, and a plurality of individual bottom cover plates all enclosing a lower housing column bore for receiving well pipe. The blowout preventer assembly also has a plurality of annular pistons, a plurality of associated glands disposed in each cylinder with each piston, a main seal with a plurality of main seal ribs, an adaptor ring, and various dedicated and associated seals and threaded attachments.

Abstract: A gate valve system for controlling fluid flow having a valve body with a bore through which fluid can flow. The system includes a valve body having a bore to allow fluid to pass through the valve body and further having a cavity defined by substantially parallel innerside walls of the valve body, a gate wherein at least one end of the gate is defined by a radius perimeter. The system also has a bonnet that is removably coupled to a face of the valve body, wherein a portion of an innerside of the bonnet includes a curved surface adapted to mate with the at least one end of the gate defined by the radius perimeter, and an actuation mechanism operationally positioned and removably connected to the gate by way of a thru-hole in the bonnet.

Abstract: A blowout preventer includes a housing including interconnected cylinders formed therein, a main seal positioned within the housing, cylindrical sleeves removably placed within the interconnected cylinders, annular pistons and glands placed within the sleeves; and an energizing ring configured to be operated on by the annular pistons in order to operate the main seal. A blowout preventer may also include an upper gland assembly for isolating a void space within the housing from the interconnected cylinders.

Abstract: A blowout preventer assembly is provided and is generally configured having an upper housing, a lower housing with a plurality of internally interconnected cylinders, a one piece energizing ring, and a plurality of individual bottom cover plates all enclosing a lower housing column bore for receiving well pipe. The blowout preventer assembly also has a plurality of annular pistons, a plurality of associated glands disposed in each cylinder with each piston, a main seal with a plurality of main seal ribs, an adaptor ring, and various dedicated and associated seals and threaded attachments.

Abstract: A hydraulic actuator apparatus includes a hydraulic cylinder having a top and bottom face wherein a rotatable piston is movably disposed. Top and bottom pistons rods that are rotatably removable and couple to the top and bottom faces of the piston. The piston rods are interchangeable so that the top piston rod can be exchanged with the bottom piston rod. The hydraulic actuator apparatus further includes top and bottom end caps, which sealably couple to the top and bottom faces of the hydraulic cylinder, and the end caps support connection to external components and have thru holes, which allow their respective piston rods to emerge from the hydraulic cylinder. The end caps are also interchangeable so that the top end cap and the bottom end cap can be switched. The hydraulic actuator apparatus is symmetric and can be rotated with respect to its connection to external components.

Abstract: A gate valve system for controlling fluid flow having a valve body with a bore through which fluid can flow. The system includes a valve body having a bore to allow fluid to pass through the valve body and further having a cavity defined by substantially parallel innerside walls of the valve body, a gate wherein at least one end of the gate is defined by a radius perimeter. The system also has a bonnet that is removably coupled to a face of the valve body, wherein a portion of an innerside of the bonnet includes a curved surface adapted to mate with the at least one end of the gate defined by the radius perimeter, and an actuation mechanism operationally positioned and removably connected to the gate by way of a thru-hole in the bonnet.

Abstract: An anti-rotation device prevents an inner wellhead housing from rotating within an outer wellhead housing. The anti-rotation device provides spring loaded anti-rotational keys within the outer wellhead housing and mating slots formed within the inner wellhead housing. The keys face inwards to the inner wellhead housing, are circumferentially spaced apart around the outer wellhead housing, and located between the two tapered shoulders. As the inner wellhead housing lands in the outer housing, the inner wellhead housing pushes the keys of the outer wellhead housing to a retracted position. The inner wellhead housing is then rotated within the outer wellhead housing until the spring loaded keys align with the slots and extend into the slots of the inner wellhead housing. Any rotational force on the inner wellhead housing will be resisted by the anti-rotational mechanism.

Abstract: An anti-rotation device prevents an inner wellhead housing from rotating within an outer wellhead housing. The anti-rotation device provides spring loaded anti-rotational keys within the outer wellhead housing and mating slots formed within the inner wellhead housing. The keys face inwards to the inner wellhead housing, are circumferentially spaced apart around the outer wellhead housing, and located between the two tapered shoulders. As the inner wellhead housing lands in the outer housing, the inner wellhead housing pushes the keys of the outer wellhead housing to a retracted position. The inner wellhead housing is then rotated within the outer wellhead housing until the spring loaded keys align with the slots and extend into the slots of the inner wellhead housing. Any rotational force on the inner wellhead housing will be resisted by the anti-rotational mechanism.

Abstract: An improved gate for a gate valve will allow shearing of a wireline extending through the gate valve while preserving post-shear seal integrity. The improved gate comprises an inlay of a hard ductile material such as Stellite along the shearing edge of the gate. The gate also comprises a coating of an extremely hard material such as tungsten carbide on the sealing surface of the gate. The invention also covers an improved gate seat. The improved seat also comprises an inlay of a hard ductile material such as Stellite along its shearing edge. The improved seat can also have a coating of an extremely hard material such as tungsten carbide on part of its sealing surface.