Abstract: A system and method for conducting subterranean operations. In an embodiment, the system can include a monitoring system configured to monitor at least one criterion of a plurality of operational systems selected from the group of choke valves, mud pumps, drawworks, backpressure pumps, top drive, mud gas separator, flow line, blowout preventer, inside blowout preventer, or any combination thereof, and a logic device configured to generate a capacity value for each operational system of the plurality of the operational systems based on the at least one criterion, and further configured to change a state of one or more of plurality of the operational systems to control a downhole pressure.

Abstract: A pipe tally vision system may be positioned on a drilling rig. A drill string may be positioned within a wellbore using the drilling rig. The drill string may be observed with the pipe tally system during a wellbore operation. A pipe tally database may be generated by the pipe tally system based on the observations of the drill string made by the pipe tally system and observations may be made as the drill string is moved into or out of the wellbore.

Abstract: A technology is described for controlling an electric choke actuator included in a drilling rig. An example system can include a computing device configured to provide position data for an electric choke actuator configured to control a well choke valve in selective fluid communication with a blow-out preventer arranged to close a borehole. The system can receive a choke position command to move the electric choke actuator from a first position to a second position, whereupon a control signal can be sent to the electric choke actuator that causes the electric choke actuator to move from the first position to the second position. Position data for the electric choke actuator can be updated to indicate the second position.

Abstract: A system and method for conducting subterranean operations. In an embodiment, the system can include a monitoring system configured to monitor at least one criterion of a plurality of operational systems selected from the group of choke valves, mud pumps, drawworks, backpressure pumps, top drive, mud gas separator, flow line, blowout preventer, inside blowout preventer, or any combination thereof, and a logic device configured to generate a capacity value for each operational system of the plurality of the operational systems based on the at least one criterion, and further configured to change a state of one or more of plurality of the operational systems to control a downhole pressure.

Abstract: A pipe tally vision system may be positioned on a drilling rig. A drill string may be positioned within a wellbore using the drilling rig. The drill string may be observed with the pipe tally system during a wellbore operation. A pipe tally database may be generated by the pipe tally system based on the observations of the drill string made by the pipe tally system and observations may be made as the drill string is moved into or out of the wellbore.

Abstract: A technology is described for controlling an electric choke actuator included in a drilling rig. An example system can include a computing device configured to provide position data for an electric choke actuator configured to control a well choke valve in selective fluid communication with a blow-out preventer arranged to close a borehole. The system can receive a choke position command to move the electric choke actuator from a first position to a second position, whereupon a control signal can be sent to the electric choke actuator that causes the electric choke actuator to move from the first position to the second position.

Abstract: A drilling system for facilitating extraction of subterranean natural resources comprises a blow-out preventer arranged to close a borehole and divert a fluid to a choke valve operable by an electric choke actuator. A choke system is integrated into a drilling rig control system, such that a motor control center of the drilling control system also controls a variable control device that operates the electric choke actuator. The motor control center receives and transmits rig data, comprising both choke position data and rig control data. A user interface device, communicatively coupled to the motor control center, displays information pertaining to the rig data and is operable to transmit choke control commands to the motor control center for operational control of the electric choke actuator. The choke control system is remotely operable from a remote location that overrides the choke control system.