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 and a subsea stack 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 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 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 and a subsea stack 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 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 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 supplemental sealing system for a blowout preventer (BOP) includes a fluid source configured to support a sealing fluid and a conduit fluidly coupled to the fluid source. The conduit is configured to deliver the sealing fluid from the fluid source to a bore of the BOP to enable the sealing fluid to supplement a seal formed by one or more primary seal elements of the BOP.

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 system for controlling a blowout preventer stack and subsea test tree connected to a subsea wellhead assembly, the system comprising: a marine riser engageable with the subsea wellhead assembly; a lower marine riser package configured to be attached to the marine riser in the subsea environment, wherein the blowout preventer is configured to be removably attached to the lower marine riser package; an umbilical located outside of the marine riser adapted to communicate control fluids, electrical signals and/or fiber optic communications to a subsea controller, wherein the subsea controller is configured to receive control fluids and/or signals from the umbilical and to provide functions to the blowout preventer stack and subsea test tree, further wherein the subsea controller stabs into the system above the subsea wellhead assembly. This out-of-marine riser design provides for simplification in design criteria associated with the subsea controller and umbilical system.

Abstract: A system for controlling a blowout preventer stack and subsea test tree connected to a subsea wellhead assembly, the system comprising: a marine riser engageable with the subsea wellhead assembly; a lower marine riser package configured to be attached to the marine riser in the subsea environment, wherein the blowout preventer is configured to be removably attached to the lower marine riser package; an umbilical located outside of the marine riser adapted to communicate control fluids, electrical signals and/or fiber optic communications to a subsea controller, wherein the subsea controller is configured to receive control fluids and/or signals from the umbilical and to provide functions to the blowout preventer stack and subsea test tree, further wherein the subsea controller stabs into the system above the subsea wellhead assembly. This out-of-marine riser design provides for simplification in design criteria associated with the subsea controller and umbilical system.