Abstract: A supersonic vacuum generator device for oil wells including: a cylindrical chamber; a suction device; a central accelerator core inside the cylindrical chamber; a tubular chamber connected to the cylindrical chamber, the tubular chamber including an internal fluid feed space; a concentric accelerator core inside the tubular chamber and connected to the central accelerator core, the concentric accelerator core includes a central vacuum tube having a cylindrical shape with a fluid accumulation chamber; a conical section connected to the fluid accumulation chamber and to a reduced diameter fluid passage that diverges with an angle range between 3.5 to 9 degrees with respect to a center line of the fluid passage; a one-way valve located on each one of the inlets of the central accelerator core; and a one-way valve located on the central vacuum tube.

Abstract: A supersonic vacuum generator device for oil wells including: a cylindrical chamber; a suction device; a central accelerator core inside the cylindrical chamber; a tubular chamber connected to the cylindrical chamber, the tubular chamber including an internal fluid feed space; a concentric accelerator core inside the tubular chamber and connected to the central accelerator core, the concentric accelerator core includes a central vacuum tube having a cylindrical shape with a fluid accumulation chamber; a conical section connected to the fluid accumulation chamber and to a reduced diameter fluid passage that diverges with an angle range between 3.5 to 9 degrees with respect to a center line of the fluid passage; a one-way valve located on each one of the inlets of the central accelerator core; and a one-way valve located on the central vacuum tube.

Abstract: A thermal load based automatic valve arrangement including an actuator responsive to fluid temperature flowing through the arrangement, a closure member operably connected to the actuator, and a seat receptive to the closure member to prevent or restrict fluid flow through the arrangement in a first direction when actuated while still allowing fluid flow in a second direction. A method for controlling steam movement in a production string of a SAGD (Steam Assisted Gravity Drainage) installation including sensing with an actuator, temperature of fluid moving through a valve arrangement, automatically adjusting the valve arrangement pursuant to thermal load on the actuator.

Abstract: A thermal load based automatic valve arrangement including an actuator responsive to fluid temperature flowing through the arrangement, a closure member operably connected to the actuator, and a seat receptive to the closure member to prevent or restrict fluid flow through the arrangement in a first direction when actuated while still allowing fluid flow in a second direction. A method for controlling steam movement in a production string of a SAGD installation including sensing with an actuator, temperature of fluid moving through a valve arrangement, automatically adjusting the valve arrangement pursuant to thermal load on the actuator.

Abstract: A flow control device having a longitudinal axis includes an outer housing having at least one fluid inlet, a multi-channel flow member positioned radially within the outer housing, a plurality of flow channels formed between the outer housing and the flow member, at least two of the plurality of flow channels having a different flow resistance rating from each other, and a radial window formed in an outlet region of each of the plurality of flow channels. The flow control device further includes a sliding sleeve positioned radially within the multi-channel flow member, the sliding sleeve including a first section of radial slots. The first section of radial slots is configured to align with a selected radial window via longitudinal movement of the sliding sleeve with respect to the multi-channel flow member.

Abstract: A flow control device having a longitudinal axis includes an outer housing having at least one fluid inlet, a multi-channel flow member positioned radially within the outer housing, a plurality of flow channels formed between the outer housing and the flow member, at least two of the plurality of flow channels having a different flow resistance rating from each other, and a radial window formed in an outlet region of each of the plurality of flow channels. The flow control device further includes a sliding sleeve positioned radially within the multi-channel flow member, the sliding sleeve including a first section of radial slots. The first section of radial slots is configured to align with a selected radial window via longitudinal movement of the sliding sleeve with respect to the multi-channel flow member.