A valve for preventing hydraulic shock and water hammer in downstream equipment, the valve including a valve body with an internal oil dampening chamber, an orifice arranged within the oil dampening chamber, a flow dampener positioned between the valve inlet and the orifice, and a spring between the valve body and the orifice. The valve is pressure compensated based on the ambient fluid pressure.

A system includes a choke valve coupled to a Christmas tree on a wellhead. A smart module may be coupled to the choke valve. A hydraulic control unit may be coupled to the smart module and the choke valve. The hydraulic control unit hydraulically actuates the choke valve. A first sensor may be attached upstream of the choke valve and a second sensor may be attached downstream of the choke valve. The first sensor measures an upstream pressure and the second sensor measures a downstream pressure. A controller may be coupled to the smart module and the hydraulic control unit. The smart module receives the upstream pressure, the downstream pressure, and well data to generate commands to adjust a choke size of the choke valve corresponding with a required production rate of a well. The controller may manage a transmission of hydraulic pressure from the hydraulic control unit to actuate the choke valve based on the generated commands.

A wellhead system includes a wellhead, a fluid line extending from the wellhead, a branch line fluidly connected to the fluid line at an inlet and at an outlet, an ejector device arranged on the branch line, a tank fluidly connected by a tank fluid line to the ejector device, and a pressure control valve arranged on the branch line upstream of the ejector device. The ejector device is configured to produce a mixture that includes the fluid from the wellhead flowing in the branch fluid line with a chemical flowing the tank fluid line. The ejector device is also configured to discharge the mixture downstream of the ejector device. The pressure control valve is configured to control the flow of a fluid entering the ejector device.

Embodiments of systems and methods for generating power in the vicinity of a drilling rig are disclosed. During a drilling operation, heat generated by drilling fluid flowing from a borehole, exhaust from an engine, and/or fluid from an engine's water (or other fluid) jacket, for example, may be utilized by corresponding heat exchangers to facilitate heat transfer to a working fluid. The heated working fluid may cause an ORC unit to generate electrical power.

A surface safety valve for a well system includes a main valve body with a central bore through it. The main valve body has a centerline axis and is configured to be connected at a surface location above a surface of the Earth to a surface assembly of the well system and to receive through the central bore a flow of wellbore fluid from a subterranean zone conveyed by a production tubing. A gate is positioned within the main valve body and is configured to move from an open position in which the gate does not block flow of wellbore fluid through the central bore to a closed position in which the gate blocks flow of wellbore fluid through the central bore. The gate travels from the open position to the closed position along a gate movement axis perpendicular to the centerline bore axis. The gate includes a gate front end positioned on a first side of the centerline bore axis and a gate back end positioned on a second side of the centerline bore axis opposite the first side. The surface safety valve also includes an actuator positioned on the first side of the centerline bore axis. The actuator is configured to selectively push the gate towards the open position. The safety valve also includes a spring enclosed within the main valve body and positioned on the second side of the centerline bore axis. The spring is connected to the gate back end and is configured to bias the gate towards the closed position.

Embodiments of systems and methods for generating power in the vicinity of a drilling rig are disclosed. During a drilling operation, heat generated by drilling fluid flowing from a borehole, exhaust from an engine, and/or fluid from an engine's water (or other fluid) jacket, for example, may be utilized by corresponding heat exchangers to facilitate heat transfer to a working fluid. The heated working fluid may cause an ORC unit to generate electrical power.

A system for automated testing of a high-pressure pump comprises a choke valve, actuator and actuator drive for operating the choke in response to receiving control signals. A system control unit includes a processor unit, system memory, I/O interface, human-machine interface, and display device. A pressure sensor is connected to the pump outlet line for sensing and reporting outlet pressure to the control unit. The control unit can execute a test phase by causing the pump to run at a test speed and causing the actuator to change the restriction value of the choke until a predetermined pressure is sensed in the outlet line and reported to the control unit. The control unit can cause the actuator to maintain the predetermined pressure for a predetermined period of time. The control unit can cause the display device to show a result or print a report of one or more test phases.

A wellhead valve control system includes a removable actuator adapted to couple to a valve, the valve being operable via a first operational mode. The system also includes an actuator element associated with the removable actuator, the actuator element operable to modify the first operational mode of the valve to a second operational mode, the second operational mode being different from the first operational mode. The system further includes a control panel, positioned remotely from the valve, the control panel configured to control the actuator element to adjust a valve position in the second operational mode.

Disclosed herein are various embodiments of well control system for drilling an oil or gas well safely and efficiently by providing a mechanical actuator capable of transmitting a rotational force downhole, and converting the rotational force to an axial force for the purpose of operating downhole equipment, including subsurface safety valves, compressible bladder valves, and sliding sleeve valves. Because the actuator is mechanical and not hydraulic as in conventional equipment, the force applied is independent of the depth at which it is applied, overcoming a major deficiency seen in comparable hydraulic systems.

Embodiments include a choke system that passes enlarged debris despite having a relatively small diameter for an input port of the choke system. Embodiments also include systems to prevent dislodging of a choke seat when backpressure is supplied to the choke system. Embodiments also include sealing systems to prevent fluid leaks around the choke seat of the choke system.