Abstract: Present embodiments of the disclosure are directed to a seal assembly for generating a seal between two opposing shear blades of a ram unit after shearing a tubular. The seal assembly may include at least a wiper, a sealing element, and an energizer. The wiper may clean a surface of a shear blade as the blade moves relative to the seal assembly. The sealing element may include an elastomeric material that can be deformed into engagement with the shear blade to generate the seal. The energizer may be a hard component that energizes the sealing element against the cleaned surface of the shear blade as the blade moves further relative to the seal assembly. The wiper may clean the sealing surface of the blade by removing debris from the surface prior to the energizer activating the seal.

Abstract: The disclosed embodiments are directed to a blowout preventer with a hinged bonnet assembly having components designed to improve the maintenance and serviceability of the blowout preventer. The blowout preventer includes a body with intersecting passageways extending therethrough. The blowout preventer also includes a bonnet including a ram unit capable of seating in a ram location of the body and a bonnet door removably coupled to a first side of the body. The blowout preventer further includes a pin or hinge adapter disposed along the body and defining a hinge axis, and a hinge rotatably coupled to the pin or hinge adapter. The hinge is coupled to the bonnet door to rotate the bonnet about the hinge axis, and the hinge and the bonnet door are selectively separable. The separable hinge allows an operator to access, remove, and replace the hinge if the hinge becomes worn or impacted during operation.

Abstract: Present embodiments of the disclosure are directed to a seal assembly for generating a seal between two opposing shear blades of a ram unit after shearing a tubular. The seal assembly may include at least a wiper, a sealing element, and an energizer. The wiper may clean a surface of a shear blade as the blade moves relative to the seal assembly. The sealing element may include an elastomeric material that can be deformed into engagement with the shear blade to generate the seal. The energizer may be a hard component that energizes the sealing element against the cleaned surface of the shear blade as the blade moves further relative to the seal assembly. The wiper may clean the sealing surface of the blade by removing debris from the surface prior to the energizer activating the seal, thus enabling a more secure seal to be established on the blade surface.

Abstract: The disclosed embodiments are directed to a blowout preventer with a hinged bonnet assembly having components designed to improve the maintenance and serviceability of the blowout preventer. The blowout preventer includes a body with intersecting passageways extending therethrough. The blowout preventer also includes a bonnet including a ram unit capable of seating in a ram location of the body and a bonnet door removably coupled to a first side of the body. The blowout preventer further includes a pin or hinge adapter disposed along the body and defining a hinge axis, and a hinge rotatably coupled to the pin or hinge adapter. The hinge is coupled to the bonnet door to rotate the bonnet about the hinge axis, and the hinge and the bonnet door are selectively separable. The separable hinge allows an operator to access, remove, and replace the hinge if the hinge becomes worn or impacted during operation.

Abstract: An apparatus for supporting pipe includes a support member defining an inner bowl surface in which is received a plurality of layers of arcuate slip segments. Preferably, the slip segments of each layer are staggered relative to the slip segments of adjacent layers.