An improved ram assembly for a blowout preventer having a design that permits the seals of the ram assembly to be located in the working area and out of the way of threads or other rough/jagged surfaces that could damage the seals in the event of failure of the blowout preventer, such as if the threaded connection fails and the rams are suddenly pushed outwards. The ram assembly can also have a pin-and-groove mechanism that permits the rams to rotate when in the closed/sealing position to account for a misaligned rod. Further, the ram heads of the ram assembly can have a sufficient length such that they remain supported by the bonnet and ram bores of the blowout preventer against radial deflection, relative to the ram bore, when in the closed position and exposed to wellbore pressure. Additionally, the actuators of the ram assembly remain axially stationary during use.

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 remotely-operated fluid connection assembly to hold higher internal pressures in larger diameters. The assembly comprises a fluid connection adapter and a fluid connection housing assembly. When the adapter enters the housing assembly: (A) locking elements on the housing assembly constrict about the adapter; and (B) at least a first seal section on the adapter sealingly contacts a first seal bore on the housing assembly. Progressive engagement of a locking ring upon the locking elements urges the locking elements to tighten against the adapter. Internal pressure encourages adapter displacement, which then further tightens the adapter against the locking elements as now restrained by the locking ring. Internal pressure further encourages the first seal section on the adapter to expand radially to tighten the contact with the first seal bore in the housing assembly.

A remotely-operated fluid connection assembly to hold higher internal pressures in larger diameters. The assembly comprises a fluid connection adapter and a fluid connection housing assembly. When the adapter enters the housing assembly: (A) locking elements on the housing assembly constrict about the adapter; and (B) at least a first seal section on the adapter sealingly contacts a first seal bore on the housing assembly. Progressive engagement of a locking ring upon the locking elements urges the locking elements to tighten against the adapter. Internal pressure encourages adapter displacement, which then further tightens the adapter against the locking elements as now restrained by the locking ring. Internal pressure further encourages the first seal section on the adapter to expand radially to tighten the contact with the first seal bore in the housing assembly.

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 stripper head assembly for holding back pressure while stripping a work-string from pressurized well environment is disclosed. The stripper head assembly comprises a stripper head, a stripper insert, a stripper rubber, one or more retention bushing assemblies, one or more retention pins, and one or more retention apertures. The stripper head comprises an outer portion of the stripper head assembly. The stripper head comprises, from top to bottom, a top portion, a body portion, a lower neck portion and a flange base. A portion of the stripper insert fits within a portion of the stripper rubber. A portion of the stripper rubber fits within a portion of the stripper head.

A polished rod elevator has a top lift platform defining a polished rod passage and a mouth to laterally receive a polished rod into the polished rod passage; a plurality of linear actuators depending below the top lift platform and radially spaced from an axis of the polished rod passage to define a production tree receiving gap; and a plurality of arcuate wellhead flange mounting base plates connected to base ends of the plurality of linear actuators. Related methods of use and kits are discussed.

A polished rod elevator has a top lift platform defining a polished rod passage and a mouth to laterally receive a polished rod into the polished rod passage; a plurality of linear actuators depending below the top lift platform and radially spaced from an axis of the polished rod passage to define a production tree receiving gap; and a plurality of arcuate wellhead flange mounting base plates connected to base ends of the plurality of linear actuators. Related methods of use and kits are discussed.

The disclosure provides a blowout preventer system including: a hydraulic circuit, a blowout preventer including a ram having an open port and a close port, a hydraulic fluid tank, a hydraulic fluid pump, and a control valve. The hydraulic circuit includes: a first accumulator, a first valve, and a second valve. The control valve is coupled to the open port, the close port, and the hydraulic fluid tank. The first accumulator is coupled to the control valve by way of the first valve and to the close port by way of the second valve. The first valve allows hydraulic fluid to flow from the control valve to the first accumulator but prevents hydraulic fluid from flowing back to the control valve. When the control valve is in the open position, the second valve is closed, and when the control valve is in the close position, the second valve is open.