What is provided is a method and apparatus which can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve of the swivel.

A pressure control device can include an outer housing, a bearing assembly with bearings to rotatably support an inner barrel in the outer housing, a heat exchanger, and fluid passages that communicate between the bearings and the heat exchanger, and a latch assembly configured to releasably secure the bearing assembly in the outer housing. The latch assembly can include a heat exchanger configured to exchange heat with the bearing assembly heat exchanger. Another pressure control device can include a bearing assembly with bearings to rotatably support an inner barrel in the outer housing, fluid passages that communicate with space adjacent the bearings, a pump in communication with the fluid passages, and a gear train connected between the pump and a ring gear secured to the inner barrel.

A well annular pressure control device includes a housing having a through bore and at least two iris valves within the housing. The iris valves comprise a plurality of vanes operable between an open position and a closed position to define an opening. At least one actuator is coupled to the plurality of vanes to move the plurality of vanes between the open position and the closed position.

A harsh environment integrated MPD riser joint includes a dynamic annular sealing system, a static annular sealing system disposed directly below the dynamic annular sealing system, and a flow spool, or equivalent thereof, disposed directly below the static annular sealing system. The dynamic annular sealing system may be a conventional ACD-type, RCD-type, or other conventional annular sealing system. The static annular sealing system may include one or more annular packer systems and one or more connection sealing elements that engage drill pipe during connection or non-rotation operations only. The dynamic annular sealing system may maintain annular pressure during drilling operations while the static annular sealing system is disengaged. The static annular sealing system may maintain annular pressure during connection operations while the dynamic annular sealing system is disengaged. Advantageously, the static annular sealing system is capable of withstanding jarring heaving action encountered in harsh environments.

A Jack-up drilling rig or land drilling rig riser system with quick connectors that can be used to rapidly install and de-install RCD housings between the BOP and the drill floor. The quick connector design can handle different bore diameters without changing the external design of the connector. The connector assembly may be used to connect a blowout preventer or rotating control device housing to a tubular riser, a blowout preventer housing to an RCD housing, or to join two tubular risers. A connector assembly connects a tubular pin end to a housing has a tubular connector body with a first end to receive the pin end and a second end secured to the housing. The connector assembly also includes a latching mechanism movable between a lock position to prevent the pin end from being removed and an unlock position in which the pin end can be removed.

The swivel device attaches to a bowl or is implemented as a component of the bowl. The swivel device enables adjustment of the bowl to align the outlet with the flowline. A flange of the swivel device includes multiple fastener apertures for securing the flange to the stack. The swivel device secures the bowl to the stack while allowing rotation of the bowl. Rotation of the bowl adjusts the positioning of the outlet to align the outlet with the flowline for connecting the outlet to the flowline.

Disclosed herein are various embodiments of a method for minimizing formation damage while drilling an oil or gas well. An Annular Pressure Control Diverter is designed to be positioned below the conventional blowout preventer stack, and is activated during near balanced drilling operations to seal the annulus between the drill pipe and the production casing. Returned drilling fluid and produced fluids are diverted up the annulus between the production casing and intermediate casing and through a well head located below an all-inclusive BOP stack. The seal elements within the Annular Pressure Control Diverter do not rotate. Doors are provided on each side of the Annular Pressure Control Diverter to permit changing of the seal elements. The Annular Pressure Control Diverter also is used to ensure the capture of methane while drilling in a hydrocarbon bearing reservoir.

A rotating control device (RCD) system includes a first RCD comprising a first body and a first sealing element within the first body and a second RCD comprising a second body a second sealing element within the second body. The RCD system also includes a controller that is configured to control a first actuator assembly to adjust the first RCD to a withdrawn configuration in which the first sealing element is not positioned to seal about a tubular and to control a second actuator assembly to maintain the second RCD in a sealing configuration in which the second sealing element is positioned to seal about the tubular while the first RCD is in the withdrawn configuration.

Disclosed herein are embodiments of a pressure compensation piston and embodiments of rotary seal assemblies. In one embodiment, a pressure compensation piston for use with a rotary seal assembly includes a stepped piston having an opening extending there through for positioning the stepped piston about a rotatable shaft of a rotary seal assembly. In accordance with this embodiment, the pressure compensation piston further includes a rotary seal positioned along a radial surface of the opening for sealing the stepped piston relative to the rotatable shaft.

A drilling rig includes an integrated MPD system. The drilling rig includes a drill rig floor and a substructure. The drilling rig includes a managed pressure drilling (MPD) manifold positioned on the drill rig floor or coupled to the substructure. The drilling rig includes a rotating control device (RCD) coupled to a blowout preventer (BOP), the BOP coupled to a wellbore. The drilling rig includes a flowline coupled to the RCD. The drilling rig includes an MPD line coupled to the BOP, the MPD line fluidly coupled between the annulus of the wellbore and the MPD manifold. The drilling rig includes an MPD outlet line, the MPD outlet line fluidly coupled between the MPD manifold and the flowline.