Abstract: This disclosure includes manifolds, subsea valve modules, and related methods. Some manifolds and/or subsea valve modules include one or more inlets, each configured to receive hydraulic fluid from a fluid source, one or more outlets, each in selective fluid communication with at least one of the inlets, and one or more subsea valve assemblies, each configured to selectively control hydraulic fluid communication from at least one of the inlets to at least one of the outlets, where at least one of the outlets is configured to be in fluid communication with an actuation port of the hydraulically actuated device.

Abstract: Some of the present systems include a hydraulic power storage system having an accumulator configured to supply pressurized hydraulic fluid to a hydraulically actuated device to actuate the hydraulically actuated device and a drain in fluid communication with the accumulator and including a valve that is actuatable to drain hydraulic fluid from the hydraulic power storage system such that an internal pressure of the accumulator is reduced and a flow restrictor configured to reduce a flow rate of hydraulic fluid through the valve, a hydraulic pump configured to pressurize the accumulator, a pressure sensor configured to capture data indicative of the internal pressure of the accumulator, and a processor configured to actuate the hydraulic pump to increase the internal pressure of the accumulator if the internal pressure of the accumulator, as indicated in data captured by the pressure sensor, falls below a threshold pressure.

Abstract: Some embodiments of the present BOP control systems include a system controller configured to actuate a first BOP function by communicating one or more commands to one or more nodes of a functional pathway selected from one or more available functional pathways associated with the first BOP function, each node comprising an actuatable component configured to actuate in response to a command received from the system controller, each node having one or more sensors configured to capture a first data set corresponding to actuation of the component and a processor configured to analyze the first data set to determine a useful life remaining of the component and/or compare the first data set to a second data set corresponding to a simulation of actuation of the component.

Abstract: This disclosure includes subsea pumping apparatuses and related methods. Some apparatuses include one or more subsea pumps, each having an inlet and an outlet, and one or more motors, each configured to actuate at least one pump to communicate a hydraulic fluid from the inlet to the outlet, where the subsea pumping apparatus is configured to be in fluid communication with a hydraulically actuated device of a blowout preventer. Some subsea pumping apparatuses include one or more of: a desalination system configured to produce at least a portion of the hydraulic fluid; one or more valves, each configured to selectively route hydraulic fluid from an outlet of a pump to, for example, a subsea environment, a reservoir, and/or the inlet of the pump; and a reservoir configured to store at least a portion of the hydraulic fluid. Some apparatuses are configured to be directly coupled to the hydraulically actuated device.

Abstract: This disclosure includes manifolds, subsea valve modules, and related methods. Some manifolds and/or subsea valve modules include one or more inlets, each configured to receive hydraulic fluid from a fluid source, one or more outlets, each in selective fluid communication with at least one of the inlets, and one or more subsea valve assemblies, each configured to selectively control hydraulic fluid communication from at least one of the inlets to at least one of the outlets, where at least one of the outlets is configured to be in fluid communication with an actuation port of the hydraulically actuated device.

Abstract: Methods, apparatuses, systems, and implementations of an HMI control system for BOP rigs are disclosed. At least some versions of the disclosed systems enable a user to configure interface settings, perform actions on a BOP stack, view diagnostics, perform testing, and observe and rectify alarms. The disclosed systems may enable a user to more efficiently navigate between different interfaces and perform HMI functions due to a control zone configuration. Additionally, the control zone configuration may reduce operator error by assigning certain control zones to particular functions and requiring the user to take affirmative steps to perform destructive functions.

Abstract: This disclosure includes methods for testing hydraulically-actuated devices and related systems. Some hydraulically-actuated devices have a housing defining an interior volume and a piston disposed within the interior volume and dividing the interior volume into a first chamber and a second chamber, where the piston is movable relative to the housing between a maximum first position and a maximum second position in response to pressure differentials between the first and second chambers. Some methods include: (1) moving the piston to the first position by varying pressure within at least one of the first and second chambers such that pressure within the second chamber is higher than pressure within the first chamber; and (2) while the piston remains in the first position: (a) reducing pressure within the second chamber and/or increasing pressure within the first chamber; and (b) increasing pressure within the second chamber and/or decreasing pressure within the first chamber.

Abstract: This disclosure includes methods for testing hydraulically-actuated devices and related systems. Some hydraulically-actuated devices have a housing defining an interior volume and a piston disposed within the interior volume and dividing the interior volume into a first chamber and a second chamber, where the piston is movable relative to the housing between a maximum first position and a maximum second position in response to pressure differentials between the first and second chambers. Some methods include: (1) moving the piston to the first position by varying pressure within at least one of the first and second chambers such that pressure within the second chamber is higher than pressure within the first chamber; and (2) while the piston remains in the first position: (a) reducing pressure within the second chamber and/or increasing pressure within the first chamber; and (b) increasing pressure within the second chamber and/or decreasing pressure within the first chamber.

Abstract: Some of the present systems include a hydraulic power storage system having an accumulator configured to supply pressurized hydraulic fluid to a hydraulically actuated device to actuate the hydraulically actuated device and a drain in fluid communication with the accumulator and including a valve that is actuatable to drain hydraulic fluid from the hydraulic power storage system such that an internal pressure of the accumulator is reduced and a flow restrictor configured to reduce a flow rate of hydraulic fluid through the valve, a hydraulic pump configured to pressurize the accumulator, a pressure sensor configured to capture data indicative of the internal pressure of the accumulator, and a processor configured to actuate the hydraulic pump to increase the internal pressure of the accumulator if the internal pressure of the accumulator, as indicated in data captured by the pressure sensor, falls below a threshold pressure.

Abstract: This disclosure includes systems and methods for actuating hydraulically-actuated devices.

Abstract: This disclosure includes methods for testing hydraulically-actuated devices and related systems. Some hydraulically-actuated devices have a housing defining an interior volume and a piston disposed within the interior volume and dividing the interior volume into a first chamber and a second chamber, where the piston is movable relative to the housing between a maximum first position and a maximum second position in response to pressure differentials between the first and second chambers. Some methods include: (1) moving the piston to the first position by varying pressure within at least one of the first and second chambers such that pressure within the second chamber is higher than pressure within the first chamber; and (2) while the piston remains in the first position: (a) reducing pressure within the second chamber and/or increasing pressure within the first chamber; and (b) increasing pressure within the second chamber and/or decreasing pressure within the first chamber.

Abstract: A subsea processor may be located near the seabed of a drilling site and used to coordinate operations of underwater drilling components. The subsea processor may be enclosed in a single interchangeable unit that fits a receptor on an underwater drilling component, such as a blow-out preventer (BOP). The subsea processor may issue commands to control the BOP and receive measurements from sensors located throughout the BOP. The subsea processor may relay information to the surface for recording or monitoring. The subsea processor may also be programmed with a model from which to base operation of the BOP, such as in emergency conditions.

Abstract: This disclosure includes systems and methods for actuating hydraulically-actuated devices.

Abstract: Some of the present systems include a hydraulic power storage system having an accumulator configured to supply pressurized hydraulic fluid to a hydraulically actuated device to actuate the hydraulically actuated device and a drain in fluid communication with the accumulator and including a valve that is actuatable to drain hydraulic fluid from the hydraulic power storage system such that an internal pressure of the accumulator is reduced and a flow restrictor configured to reduce a flow rate of hydraulic fluid through the valve, a hydraulic pump configured to pressurize the accumulator, a pressure sensor configured to capture data indicative of the internal pressure of the accumulator, and a processor configured to actuate the hydraulic pump to increase the internal pressure of the accumulator if the internal pressure of the accumulator, as indicated in data captured by the pressure sensor, falls below a threshold pressure.

Abstract: Methods, apparatuses, systems, and implementations of an HMI control system for BOP rigs are disclosed. At least some versions of the disclosed systems enable a user to configure interface settings, perform actions on a BOP stack, view diagnostics, perform testing, and observe and rectify alarms. The disclosed systems may enable a user to more efficiently navigate between different interfaces and perform HMI functions due to a control zone configuration. Additionally, the control zone configuration may reduce operator error by assigning certain control zones to particular functions and requiring the user to take affirmative steps to perform destructive functions.

Abstract: A subsea processor may be located near the seabed of a drilling site and used to coordinate operations of underwater drilling components. The subsea processor may be enclosed in a single interchangeable unit that fits a receptor on an underwater drilling component, such as a blow-out preventer (BOP). The subsea processor may issue commands to control the BOP and receive measurements from sensors located throughout the BOP. The subsea processor may relay information to the surface for recording or monitoring. The subsea processor may also be programmed with a model from which to base operation of the BOP, such as in emergency conditions.

Abstract: This disclosure includes manifolds, subsea valve modules, and related methods. Some manifolds and/or subsea valve modules include one or more inlets, each configured to receive hydraulic fluid from a fluid source, one or more outlets, each in selective fluid communication with at least one of the inlets, and one or more subsea valve assemblies, each configured to selectively control hydraulic fluid communication from at least one of the inlets to at least one of the outlets, where at least one of the outlets is configured to be in fluid communication with an actuation port of the hydraulically actuated device.

Abstract: This disclosure includes systems and methods for actuating hydraulically-actuated devices.

Abstract: Some embodiments of the present BOP control systems include a system controller configured to actuate a first BOP function by communicating one or more commands to one or more nodes of a functional pathway selected from one or more available functional pathways associated with the first BOP function, each node comprising an actuatable component configured to actuate in response to a command received from the system controller, each node having one or more sensors configured to capture a first data set corresponding to actuation of the component and a processor configured to analyze the first data set to determine a useful life remaining of the component and/or compare the first data set to a second data set corresponding to a simulation of actuation of the component.

Abstract: Methods, apparatuses, systems, and implementations of an HMI control system for BOP rigs are disclosed. At least some versions of the disclosed systems enable a user to configure interface settings, perform actions on a BOP stack, view diagnostics, perform testing, and observe and rectify alarms. The disclosed systems may enable a user to more efficiently navigate between different interfaces and perform HMI functions due to a control zone configuration. Additionally, the control zone configuration may reduce operator error by assigning certain control zones to particular functions and requiring the user to take affirmative steps to perform destructive functions.