Abstract: A system for hydrate production is configured to separate a water component from a multi-phase gas and water mixture present in a wellbore, the system being configured such that said separation occurs within the wellbore. The system comprises a first flow line disposed in the wellbore and arranged such that an inlet of the first flow line is disposed in and receives the water component, so as to separate the water component from said multi-phase gas and water mixture. A control system is configured to receive an output signal indicative of the water level from a sensor arrangement of the system and control a flow control device based on the water level so as to control the flow of the water component through the first flow line.

Abstract: A gate valve includes a gate and a drive train. The drive train includes a gate rod for linearly moving the gate, a translator operatively coupled to the gate rod for moving the gate rod linearly in response to rotational motion, and a coupling device connected to the translator for providing rotational motion. The gate valve also includes a fluid cylinder cooperatively coupled to the drive train for providing an assisting force to move the gate rod linearly and a rotary valve cooperatively connected to the coupling device and in a fluid flow path between the cylinder and a fluid pressure source. Torque applied to the coupling device moves the rotary valve to an open position to supply fluid pressure to the fluid cylinder.