Abstract: Blowout preventers having bodies with internal choke and kill line pass-through conduits are provided. In one embodiment, a blowout preventer body (42) includes a drill-through bore (44) extending through the blowout preventer body and a ram cavity (58) transverse to the drill-through bore. The blowout preventer body can also include choke and kill line conduits (136, 138) extending through the blowout preventer body, as well as choke and kill line access branch conduits (148, 150) extending between the choke and kill line conduits and the drill-through bore. Additional systems, devices, and methods are also disclosed.

Abstract: Blowout preventers having bodies without flanged necks are provided. In one embodiment, a blowout preventer stack includes first and second blowout preventers having independent and separable main bodies, each including a bore and a ram cavity transverse to the bore. The lower end of the main body of the first blowout preventer is fastened directly to an upper end of the main body of the second blowout preventer without a flanged neck extending the bore between the ram cavities of the first and second blowout preventers. In some instances, the main bodies of the first and second blowout preventers include external connection flanges that extend laterally from ram cavity body portions of the main bodies so as to enable connection of the two main bodies along the sides of the main bodies away from their bores. Additional systems, devices, and methods are also disclosed.

Abstract: A system includes a flow restrictor assembly configured to be coupled to an annular structure having a central bore. The flow restrictor assembly includes one or more adjustable segments configured to move relative to the annular structure between a retracted position in which the one or more adjustable segments do not extend into the central bore and an extended position in which the one or more adjustable segments extend into the central bore to reduce a cross-sectional flow area of the central bore by between approximately 5 to 95 percent to restrict fluid flow through the central bore.

Abstract: Components of drilling and production systems with wide flange bodies are provided. In one embodiment, an apparatus includes a component (40, 124, 126, 128) of a wellhead assembly (18) or of a riser (16) of a drilling or production system, the component having a non-tubular main body (42, 130, 140) and a bore (44, 132, 144) extending axially through the main body to allow fluids to flow through the main body via the bore. Rather than having a flanged neck fixedly extending the bore from the main body with a connection flange below or above the main body, the component includes a lateral flange (50, 134, 146, 160) extending outwardly from an exterior surface of the main body such that the lateral flange is positioned alongside the main body. Additional systems, devices, and methods are also disclosed.

Abstract: Blowout preventers having bodies with internal choke and kill line pass-through conduits are provided. In one embodiment, a blowout preventer body (42) includes a drill-through bore (44) extending through the blowout preventer body and a ram cavity (58) transverse to the drill-through bore. The blowout preventer body can also include choke and kill line conduits (136, 138) extending through the blowout preventer body, as well as choke and kill line access branch conduits (148, 150) extending between the choke and kill line conduits and the drill-through bore. Additional systems, devices, and methods are also disclosed.

Abstract: A system includes a flow restrictor assembly configured to be coupled to an annular structure having a central bore. The flow restrictor assembly includes one or more adjustable segments configured to move relative to the annular structure between a retracted position in which the one or more adjustable segments do not extend into the central bore and an extended position in which the one or more adjustable segments extend into the central bore to reduce a cross-sectional flow area of the central bore by between approximately 5 to 95 percent to restrict fluid flow through the central bore.

Abstract: Blowout preventers having bodies without flanged necks are provided. In one embodiment, a blowout preventer stack includes first and second blowout preventers having independent and separable main bodies, each including a bore and a ram cavity transverse to the bore. The lower end of the main body of the first blowout preventer is fastened directly to an upper end of the main body of the second blowout preventer without a flanged neck extending the bore between the ram cavities of the first and second blowout preventers. In some instances, the main bodies of the first and second blowout preventers include external connection flanges that extend laterally from ram cavity body portions of the main bodies so as to enable connection of the two main bodies along the sides of the main bodies away from their bores. Additional systems, devices, and methods are also disclosed.