Abstract: A drilling riser testing system includes a water filling system and a pressure testing system that can fill and pressure test auxiliary lines of the riser system, while the riser joint is being held on the spider on the drill floor. The filling and pressure testing can also be carried out while the next riser joint is being retrieved and positioned by the top drive and/or a riser running too.

Abstract: A rotating choke assembly includes a rotating control device and a flow control device. The rotating control device has a seal element configured to be disposed around a tubular, where the seal is configured to rotate in a circumferential direction via rotation of the drill string and a bearing configured to facilitate rotation of the seal element in the circumferential direction within a housing of the rotating control device. The flow control device includes a first plate having at least one first opening and a second plate having at least one second opening, where the first plate is configured to rotate in the circumferential direction with respect to the second plate.

Abstract: A rotating choke assembly includes a rotating control device and a flow control device. The rotating control device has a seal element configured to be disposed around a tubular, where the seal is configured to rotate in a circumferential direction via rotation of the drill string and a bearing configured to facilitate rotation of the seal element in the circumferential direction within a housing of the rotating control device. The flow control device includes a first plate having at least one first opening and a second plate having at least one second opening, where the first plate is configured to rotate in the circumferential direction with respect to the second plate.

Abstract: A string assembly system that includes a first conduit defining a first end and a second end. A second conduit defining a third end and a fourth end. A first connector assembly coupled to the second end of the first conduit. The first connector assembly includes a first connector shaft that rotates relative to the first conduit and the second conduit. A first alignment shaft that axially aligns the first conduit and the second conduit. A second connector assembly couples to the third end of the second conduit. The second connector assembly couples to the first connector shaft, and the first conduit rotates relative to the second conduit.

Abstract: A leak detection system includes an annular housing that defines a bore, a constriction with the bore, and a channel extending radially-outwardly from the bore and positioned upstream of the constriction. The leak detection system also includes a sensor positioned outside of the bore and fluidly coupled to the channel, wherein the sensor is configured to detect a leaked fluid within the bore.

Abstract: A controls module for use with a subsea landing string, a blowout preventer (BOP) stack and a lower marine riser package (LMRP) is disclosed. The controls module can be integrated into the BOP stack or the LMRP or between the BOP stack and the LMRP. The controls module includes an input line that is coupled to control the subsea landing string through the BOP or the LMRP. The input line can be a hydraulic line, an electrical line, or a combination.

Abstract: A string assembly system that includes a first conduit defining a first end and a second end. A second conduit defining a third end and a fourth end. A first connector assembly coupled to the second end of the first conduit. The first connector assembly includes a first connector shaft that rotates relative to the first conduit and the second conduit. A first alignment shaft that axially aligns the first conduit and the second conduit. A second connector assembly couples to the third end of the second conduit. The second connector assembly couples to the first connector shaft, and the first conduit rotates relative to the second conduit.

Abstract: An accumulator system that includes a housing. The housing defines a function chamber and a balance chamber. A piston moves axially within the housing. The piston separates the function chamber from the balance chamber. An electric actuator couples to and drives the piston within the housing to compress and drive a first fluid out of the function chamber.

Abstract: A method includes pumping fluid into a drill string extending through a riser into a well. A managed pressure drilling system is operated to maintain a selected fluid pressure in the well between the well and the drill string. A fluid influx into the well or a fluid loss into a formation traversed by the well is detected using measurements of fluid pressure in the well and fluid flow into and out of the well. The method includes automatically abating the fluid influx by closing an annular blowout preventer disposed in the riser or abating the fluid loss by operating the annular blowout preventer and pumping a sacrificial fluid into the drill string.

Abstract: An accumulator system that includes a housing. The housing defines a function chamber and a balance chamber. A piston moves axially within the housing. The piston separates the function chamber from the balance chamber. An electric actuator couples to and drives the piston within the housing to compress and drive a first fluid out of the function chamber.

Abstract: A system includes one or more processors configured to provide one or more control signals to cause supply of electric power from a power supply to one or more electric actuators. The one or more electric actuators are configured to adjust one or more components of a cable pressure control equipment (PCE) stack.

Abstract: A controls module for use with a subsea landing string, a blowout preventer (BOP) stack and a lower marine riser package (LMRP) is disclosed. The controls module can be integrated into the BOP stack or the LMRP or between the BOP stack and the LMRP. The controls module includes an input line that is coupled to control the subsea landing string through the BOP or the LMRP. The input line can be a hydraulic line, an electrical line, or a combination.

Abstract: A drilling and production system is provided. In one embodiment, such a system has a plurality of functions that are effectuated at least predominately without hydraulic fluid. The system can be a drilling system having a rig (20) and a subsea stack (14) for performing various drilling functions, in which a majority of the drilling functions are effected electrically without hydraulic control fluid. In another embodiment, the rig is coupled to a subsea wellhead assembly (14) but is not connected so as to provide hydraulic control fluid from the rig to the subsea wellhead assembly to enable drilling functions of the subsea wellhead assembly. Additional systems, devices, and methods are also disclosed.

Abstract: A method includes pumping fluid into a drill string extending through a riser into a well. A managed pressure drilling system is operated to maintain a selected fluid pressure in the well between the well and the drill string. A fluid influx into the well or a fluid loss into a formation traversed by the well is detected using measurements of fluid pressure in the well and fluid flow into and out of the well. The method includes automatically abating the fluid influx by closing an annular blowout preventer disposed in the riser or abating the fluid loss by operating the annular blowout preventer and pumping a sacrificial fluid into the drill string.