Abstract: This disclosure relates to a system for reducing cavitation at a surface that moves relatively with respect to a first fluid. The system comprises a degasser configured to at least partially degas a second fluid. The system also comprises a reservoir in communication with the degasser and configured to house the at least partially degassed second fluid, the reservoir having an outlet that is arranged for directing the second fluid towards the surface. The system is configured such that the directing of the at least partially degassed second fluid towards the surface forms a boundary layer at the surface. The boundary layer is adapted to at least partially increase the negative pressure required to initiate cavitation at the surface so as to reduce the occurrence of cavitation during such relative movement.

Abstract: A device for medium separation, in particular for separation of gases, such as air, from a fluid, such as oil, has a separating device (22) accommodated in a housing (1). When the medium is received via an inlet point (24) of the housing (1), this medium is rotated for the separation. The housing (1) has at least one outlet point (26) for gas and at least one outlet point (16) for fluid, which outlet points are separated from one another. A filter device (40) is in the housing for the separation of particulate contamination and is arranged after the separating device (22) in the direction of flow of the fluid.

Abstract: An airtrap for a medical or physiological fluid in one embodiment includes a conical housing having a radius that increases from its top to its bottom when the housing is positioned for operation; a medical or physiological fluid inlet located at an upper portion of the conical housing; a medical or physiological fluid outlet located at a lower portion of the conical housing, the inlet and the outlet positioned and arranged so that medical or physiological fluid spirals in an increasing arc around an inside of the conical housing downwardly from the inlet to the outlet; and a gas collection area located at an upper portion of the conical housing. In another embodiment, the airtrap is shaped like a seahorse having a head section and a tail section. Any of the airtraps herein may be used for example in blood sets, peritoneal dialysis cassette tubing, and drug delivery sets.

Abstract: The present invention provides a gas-liquid separator with enhanced performance and easy operation, capable of performing gas-liquid separation such as advanced defoaming or degassing, and with a structure that facilitates easy CIP cleaning and disassembly cleaning, allowing it to meet sanitary specifications.

Abstract: Provided herein is a method for absorbing CO2 from a gas mixture. The method includes using an apparatus comprised of a first RPB unit and a second RPB unit. The first RPB unit and the second RPB unit are arranged to absorb CO2 in a first gas stream and a second gas stream, respectively. A liquid CO2-absorbent is supplied sequentially passing through the first RPB unit and the second RPB unit to absorb CO2 in the first gas stream and the second gas stream. The liquid CO2-absorbent is regenerated to produce a regenerated CO2-absorbent. The regenerated CO2-absorbent is transported to the first RPB unit.

Abstract: A system and method for removing gas bubbles from fluid. An active filter apparatus forces the bubbles to the center of the filter, while a pump supplies fluid to the filter.

Abstract: The present invention relates to a system for desorption of acid gas (1) from an acid gas rich absorption liquid having a steam part (3) and a process part (4). The steam part (3) and the process part (4) are separated to prevent intermixing of fluids in the steam part with fluids in the process part. The system (1) comprises a desorption cylinder (9) which is adapted to rotate about a longitudinal axis of rotation A of the desorption cylinder (9), and a stationary support stand (19) for supporting the desorption cylinder (9), and means for rotating (18) the desorption cylinder. The steam part (3) and the process part (4) are integrated in the desorption cylinder (9) and steam is supplied to the steam part (3) and acid gas rich absorption liquid (2) is supplied to the process part (4).

Abstract: CO2 absorber includes a CO2 absorbing section in which a CO2-containing flue gas and a CO2 absorbent are brought into contact with each other to remove CO2, and an aqueous cleaning section in which a decarbonated flue gas and rinsing water are brought into contact with each other to remove an accompanying substance. A lean solution is re-used in the absorber. The CO2 recovery device includes a degassing basin which is interposed in a rich solution supply line that supplies the rich solution from the CO2 absorber to the absorbent regenerator, and which includes a retaining section configured to remove oxygen in the rich solution.

Abstract: A gas-liquid separator includes: a gas-liquid separation tank; a gas-liquid introduction pipe configured to introduce a gas-liquid two-phase flow into the gas-liquid separation tank, the gas-liquid introduction pipe extending in the gas-liquid separation tank; a spray nozzle configured to spray pure water toward a liquid that has been collected on a bottom of the gas-liquid separation tank; a drain pipe communicating with a liquid discharge outlet provided in the bottom of the gas-liquid separation tank; and an exhaust pipe communicating with a gas discharge outlet provided in a side wall of the gas-liquid separation tank. The gas discharge outlet is located above a lower end of the gas-liquid introduction pipe.

Abstract: A separator of a mixture of liquid and gas, comprising an injection device, a separation chamber having a cylindrical internal surface and extending along a vertical axis, and a control chamber. The mixture is separated in the separation chamber into gas and liquid, with a cylindrical interface surface. The separation chamber comprises a first axial outlet for extracting the gas, a second outlet for extracting the liquid, and a third axial outlet in communication with the control chamber. The interface surface has, in normal operating conditions, a diameter lying between the diameter of the first outlet and the diameter of the third outlet. The control chamber is connected to the injection device by a return circuit.

Abstract: A system and method for removing unwanted elements from a gas stream. A biogas stream may be combined with a water stream influent in a venturi device to produce a gas-water mixture effluent. The gas-water mixture effluent is processed in a degas separator to separate and produce a relatively low solubility gas effluent and a relatively high solubility gas-water mixture effluent. The relatively high solubility gas-water mixture effluent is processed through a discharge pressure control valve based on a selected pressure to be maintained in said degas separator and then discharged or reused.

Abstract: A system is described herein which provides an ozonated liquid. The system comprises a liquid inlet arranged to continuously accept a liquid into the system at a desired flow rate; a liquid outlet to dispense ozonated liquid out of the system, the ozonated liquid having an oxidation-reduction potential of at least 450 mV due solely to ozone dissolved in the liquid, the liquid outlet being in fluid communication with the liquid inlet and arranged to dispense the ozonated liquid out of the system at the desired flow rate. The system has a tank-less ozonation flow path between the liquid inlet and the liquid outlet, the flow path adapted to ozonate the accepted liquid, producing the ozonated liquid to be dispensed out of the system. The accepted liquid has a fluid residence time in the ozonation flow path of less than 5 minutes prior to being dispensed as the ozonated liquid.

Abstract: A gas/liquid separator (120) is provided. The gas/liquid separator (120) includes a separator shell (121) forming an internal chamber (125), a neck (128) formed in an end of the separator shell (121), a separator tube (126) extending into the separator shell (121), with a proximal end (131) forming an output port (123) and with a distal end (132) extending into the internal chamber (125), and an input port (122) formed between the separator tube (126) and the neck (128). The distal end (132) of the separator tube (126) is located in a central interior region of the separator shell (121) wherein liquid phase material accumulates in the internal chamber (125) and is not drawn out of the gas/liquid separator (120) by the separator tube (126).

Abstract: A separator method and apparatus that includes a rotatable drum defining an annular passageway therein, a plurality of blades coupled to the rotatable drum and located in the annular passageway, each of the plurality of blades including a leading section, a trailing section, a concave surface, and a convex surface, the concave and convex surfaces extending from the leading section to the trailing section, each of the plurality of blades disposed circumferentially adjacent to at least another one of the plurality of blades so as to define blade flowpaths therebetween, and a housing at least partially surrounding the rotatable drum and defining a fluid collection chamber fluidly communicating with the annular passageway.

Abstract: A separator with a helix assembly that includes a plurality of segments disposed end to end and forming an intermediate casing. Each of the segments has a tubular portion with a first circumferential edge and a second circumferential edge and a helical portion extending from the second circumferential edge. The tubular portions of the segments form an intermediate casing, while the helical portions of the segments form a spiral helix. The helix assembly further includes an inner casing concentrically disposed within the intermediate casing and coupled to the spiral helix.

Abstract: A compressor compressing a fluid including lubricating oil includes, on the discharge side thereof, a first separation chamber for separating the lubricating oil by generating a swirling flow in the fluid. The first separation chamber includes: a circumferential wall; an inflow port that is formed in the circumferential wall and causes the fluid to flow into the first separation chamber; and a guiding plate extending from the circumferential wall. The guiding plate extends so as to face the inflow port in a direction where the fluid flows from the inflow port into the first separation chamber, and so as to deflect the fluid flow from the inflow port to guide it along an inner circumferential surface of the circumferential wall.

Abstract: A fluid trap apparatus includes an inlet configured to receive a flow of composite fluid into the apparatus. The composite fluid contains at least a first fluid and a second fluid. An outer wall defines an interior chamber. A flow diffuser is interposed within the interior chamber. The flow diffuser directs the flow of the composite fluid to circulate through the interior chamber. The first fluid and the second fluid separate as the composite fluid circulates through the interior chamber. A method of separating a first fluid from a second fluid includes introducing a flow of composite fluid into a separate chamber. A pressure gradient is created within the separation chamber. A flow diffuser is interposed in a flow path between an inlet and an outlet. The flow diffuser directs the flow of the composite fluid within the separation chamber. The first fluid and the second fluid are separated.

Abstract: The invention relates to a device for separating a flowing medium mixture into at least two fractions with differing mass density. The device comprises an inlet for the medium mixture to be separated, which connects to first separating means for separating the flowing mixture in at least a first and a second fraction, and that connect to first and second outlet means for discharging the first and second fractions. The device further comprises a feedback loop comprising second separating means between the second outlet means and the inlet means of the first separating means. The invention also relates to a method for separating a flowing medium mixture into at least two fractions with differing mass density, using the claimed device. The device and method allow to obtain a more selective separation, particularly in purifying natural gas.

Abstract: A device for phase separation of a multiphase mixture with at least one gas and at least two fluid phases may include a vessel including a tangential inlet via which the multiphase mixture is conveyed to the vessel, a tangential gas outlet above the inlet, via which a gas phase of the multiphase mixture separated from the multiphase mixture can be taken out of the vessel, and at least two outlets below the inlet at different vertical heights, via which one of the at least two fluid phases of the multiphase mixture respectively separated from the multiphase mixture can be taken out of the vessel. Further, a method for phase separation of a multiphase mixture using such device may include imparting an upwards-directed eddy flow to the multiphase mixture, during which fluid droplets are separated from the multiphase gas mixture, collecting the fluid droplets, and separately removing all phases formed.

Abstract: The present invention provides an apparatus (1) for deaerating a feed fluid, the apparatus comprising a chamber (3) for separating said feed fluid into a first component (11) substantially comprising froth or gas and a second component (12) substantially comprising deaerated liquid or sludge; an opening (6) for fluid flow from said separating chamber (2), and a device (7) for restricting fluid flow through said opening, wherein said opening (6) and said flow restricting device (7) induce a rotational flow of said feed fluid in said separating chamber such that said rotational flow generates a centrifugal vortex to separate said feed fluid into said first component (11) and said second component (12). A method of for deaerating a feed fluid is also provided.

Abstract: A contact and separation column (1) encasing a stack of one or more contact and separation cells (3). Each cell comprises: —a tray (4) with gas flow openings (6) opening into contact and separation units (7); —a downcomer (16) defining a liquid discharge; and —a liquid supply (17). Each contact and separation unit (7) comprises an upstream contact zone (8, 9) with liquid inlets (12), and one or more downstream separation zones (10) provided with a swirler (13) and a top end with a gas outlet (14). The swirler (13) is located at a distance from the gas inlet of from 50 to 90% of the total length of the contact and separation zone. Process for treating a gas with such a column.

Abstract: A system is described herein which provides an ozonated liquid. The system comprises a liquid inlet arranged to continuously accept a liquid into the system at a desired flow rate; a liquid outlet to dispense ozonated liquid out of the system, the ozonated liquid having an oxidation-reduction potential of at least 450 mV due solely to ozone dissolved in the liquid, the liquid outlet being in fluid communication with the liquid inlet and arranged to dispense the ozonated liquid out of the system at the desired flow rate. The system has a tank-less ozonation flow path between the liquid inlet and the liquid outlet, the flow path adapted to ozonate the accepted liquid, producing the ozonated liquid to be dispensed out of the system. The accepted liquid has a fluid residence time in the ozonation flow path of less than 5 minutes prior to being dispensed as the ozonated liquid.

Abstract: A liquid depth-operated valve assembly for use in a zero gravity environment includes a Pitot pump disposed within a centrifugal separator configured to separate an air and a liquid from one another. Also included is a Pitot opening disposed at a first radial location relative to a substantially central location of the centrifugal separator. Further included is a depth-sensing port disposed at a second radial location along the Pitot pump, the second radial location disposed radially inwardly of the first radial location, the depth-sensing port in operative communication with a valve.

Abstract: A system and process for an improvement to a gas-liquid cylindrical cyclone (“GLCC”) separator to reduce gas carry-under to the liquid outlet of the separator is described. The means for reducing gas carry-under is arranged within the interior space of the separator and below the inclined inlet of the separator to affect the tangential flow of the incoming liquid-and-gas mixture stream into the interior space. The reducing means may be a vortex locator, preferably in the form of a horizontal plate, arranged coaxial with the separator vessel and located at a vortex formation point within the interior space. The reducing means may also be a plurality of vertical baffles located at a lower end of the separator vessel and extending radially inward from the wall of the vessel. The reducing means may also be a combination of the horizontal plate and vertical baffles.

Abstract: A compact inertial gas-liquid separator including: a stratification mechanism including a first horizontal pipe and a second pipe having a larger diameter possibly slightly tilted with respect to the horizontal, for example of ?10°, connected to each other by a suitable connection gate; a cylindrical body with a vertical development, on which the stratification mechanism is tangentially inserted, wherein the inertial gas-liquid separation is performed, in whose upper part an arrangement of finishing elements can be optionally inserted for further separation of drops of liquid entrapped in the gaseous stream; two outlets for the liquid stream and for the gaseous stream.

Abstract: A de-aerator dampener separator includes a separator with a vortex chamber having at least one vortex chamber entry port. The de-aerator dampener separator further includes a column assembly with a column entry port in fluid communication with the vortex chamber exit port. The de-aerator dampener separator further includes a baffle within the column assembly.

Abstract: A recycler for a direct methanol fuel cell (DMFC) that uses methanol as a direct feed fuel includes: a housing in which a gas-liquid mixture recovered from a stack is accommodated; a rotor rotatably mounted in the housing; and a motor to rotate the rotor, wherein, when the rotor is rotated by the motor, a phase separation occurs such that liquid in the gas-liquid mixture is collected mainly in an outer region of the housing and gas is collected in the center region of the housing due to the centrifugal force. Accordingly, as it is unnecessary to align a liquid outlet port of the housing with a gravitational direction, the recycler can be employed in a mobile apparatus whose orientation occasionally changes. Also, the recycler does not use a membrane whose performance is rapidly reduced over time so that effective performance can be maintained for a long operation time.

Abstract: An air trap for a blood circuit and method for removing air from blood in a dialysis unit. The air trap may include a blood inlet supply line, a blood outlet supply line, and a container having an approximately spherical internal wall, an inlet at a top end of the container connected to the blood inlet supply line, and an outlet at a bottom end of the container connected to the blood outlet supply line. The inlet may be offset from a vertical axis of the approximately spherical internal wall such that blood entering the container is directed to flow in a spiral-like path. The inlet port may be arranged to introduce blood into the container in a direction that is approximately tangential to the approximately spherical inner wall of the container and/or in a direction that is approximately perpendicular to the vertical axis of the container.

Abstract: A deoiler including a hub mounted on the vent shaft and a cover mounted on the hub between two stop faces which fix the cover avoiding the need to weld or bolt the cover.

Abstract: The present invention is directed to a method and a system for separating gas components of a combustion gas. A compressible feed stream derived from a combustion gas that contains at least one target compressible component and at least one non-target compressible component is mixed in a substantially co-current flow with an incompressible fluid stream comprising an incompressible fluid in which the target component(s) is/are capable of being preferentially absorbed. Rotational velocity is imparted to the mixed streams, separating an incompressible fluid in which at least a portion of the target component is absorbed from a compressible product stream containing the non-target compressible component(s). The compressible feed stream may be provided at a stream velocity having a Mach number of at least 0.1.

Abstract: A separator is disclosed. The separator includes a gas/liquid separator vessel, an enclosure, a coalescer and a demister. The gas/liquid separator vessel has a first end, a second end, a first inlet, a first outlet, and a first separation chamber. The first inlet can be adjacent to the first end. The enclosure is positioned within the first separation chamber of the liquid separator vessel. The enclosure has a second inlet, a second outlet, a drain positioned therebetween, and a second separation chamber. The second inlet can be directed towards the first end of the gas/liquid separator vessel. The second separation chamber defines a flow path for a gas stream in which the flow path passes sequentially through the second inlet, second separation chamber and the second outlet. The coalescer is positioned in the second separation chamber to intercept the flow path of the gas stream.

Abstract: A fluid trap apparatus includes an inlet configured to receive a flow of composite fluid into the apparatus. The composite fluid contains at least a first fluid and a second fluid. An outer wall defines an interior chamber. A flow diffuser is interposed within the interior chamber. The flow diffuser directs the flow of the composite fluid to circulate through the interior chamber. The first fluid and the second fluid separate as the composite fluid circulates through the interior chamber. A method of separating a first fluid from a second fluid includes introducing a flow of composite fluid into a separate chamber. A pressure gradient is created within the separation chamber. A flow diffuser is interposed in a flow path between an inlet and an outlet. The flow diffuser directs the flow of the composite fluid within the separation chamber. The first fluid and the second fluid are separated.

Abstract: A gas trap includes a sample enclosure, a bubbler enclosure, an agitator, and a brushless, DC motor. The sample enclosure has a liquid inlet, a gas sample outlet, and a sample enclosure wall with a sample enclosure wall portion and a shared wall portion. The bubbler enclosure has a bubbler air inlet, a bubbler air outlet, and a bubbler enclosure wall with a bubbler enclosure wall portion and the shared wall portion. The sample and bubbler enclosures are fluidly coupled through the shared wall portion so that sufficiently pressurized bubbler air entering through the bubbler air inlet maintains the drilling fluid in the sample enclosure at a level determined by the location of the bubbler air outlet when the liquid inlet and the bubbler air outlet are both submerged in the drilling fluid.

Abstract: Apparatus and methods for separating a fluid, with the apparatus including an inner drum wall disposed around and coupled to a shaft. The apparatus also includes an outer drum wall disposed around the inner drum wall, the outer drum wall being configured to rotate to separate a higher-density component of the fluid from a lower-density component of the fluid. The apparatus further includes a first radial vane disposed between the inner drum wall and the outer drum wall and having first contours configured to turn the fluid in at least one of a radially-inward direction and a radially-outward direction. The apparatus also includes a housing at least partially surrounding the outer drum wall and configured to receive the high-density component of the fluid therefrom.

Abstract: A flushable device for capturing gas included within a produced-water stream is described. Gas and water pressure coordination is not required. Controls prevent liquid entry to the gas system and prevent gas entry into the water system. A gas/liquid separator receives an inner vessel lower end. A separator inlet receives a combined fluid stream. A liquid line passes into the inner vessel and down into the separator below the inlet so that liquid separated from the combined stream will flow up the liquid line. The gas line extends from the inner vessel upper end. The gas line conveys gas from the inner vessel upper end to a gas collection system. A top float in the inner vessel activates a gas line motor valve. A bottom float in the inner vessel activates the liquid line motor valve and a second gas vent for rapid expulsion of slugs of gas.

Abstract: A separator may include a body, an inlet portion, and an outlet conduit. The body may include a conical interior surface defining a conical cavity. The cavity may have a first outlet at a tip of the body. The inlet portion may be connected to the body and may include an outer surface, a cylindrical inner surface, and a first inlet passage extending between the outer surface and the inner surface. The inner surface may be defined by the longitudinal axis. The first inlet passage may be positioned relative to the inner surface such that a fluid flow through the first inlet passage is generally tangent to the inner surface. The outlet conduit may extend through the inlet portion and into the cavity. The outlet conduit may include a second inlet passage disposed inside of the cavity and a second outlet disposed outside of the body and the inlet portion.

Abstract: A two phase gas-liquid separation apparatus is provided that shapes the flow in a flow shaping line. Shaping the two-phase flow allows centrifugal force to send the heavier, denser liquid to the outside wall of the flow shaping line and allows the lighter, less dense vapor or gas to occupy the inner wall of the flow shaping line. With the gas positioned on the inner wall of the flow shaping line, an exit port on the inner wall will allow for the majority, if not all, of the gas, along with a low amount of liquid, to be sent to a conventional separator. A high ratio of vapor/liquid at a flow rate much lower than the total flow rate within the flow shaping line is sent to the conventional separator. This allows for efficient separation of the vapor from the liquid with the use of a smaller conventional separator.

Abstract: A water separation system and method for treating multiphase hydrocarbon production streams is disclosed. The system may be employed to separate gas from the production stream, and then separate the liquid stream into its oil component and water component. A gas/liquid separator may be employed to separate a multiphase hydrocarbon production stream into a gas stream and a liquid stream. A liquid cyclone separator, positioned downstream from the gas/liquid separator, may be employed to divide the liquid stream into an oil dominated portion and a water dominated portion. The system may be used on land or on offshore platforms in locations where it is desirable to separate oil and water from hydrocarbon streams.

Abstract: A water separation system and method for treating multiphase hydrocarbon production streams is disclosed. The system may be employed to separate gas from the production stream, and then separate the liquid stream into its oil component and water component. A gas/liquid separator may be employed to separate a multiphase hydrocarbon production stream into a gas stream and a liquid stream. A liquid cyclone separator, positioned downstream from the gas/liquid separator, may be employed to divide the liquid stream into an oil dominated portion and a water dominated portion. The system may be used on land or on offshore platforms in locations where it is desirable to separate oil and water from hydrocarbon streams.

Abstract: A method for gas analysis can include continuously diverting a portion of drilling fluid into a sample chamber from a drilling fluid stream, creating a bidirectional drilling fluid circulation to liberate gas from the drilling fluid, applying a suction to a gas capturing chamber, and allowing a sample of the liberated fluid to continuously flow through the gas capturing chamber, continuously be filtered, and continuously flow into a gas analyzer. The method can include maintaining the sample chamber in an open configuration or decompressing the gas capturing chamber by closing off one or more sample inlets and sample outlets and exhausting portions of the liberated fluid that do not flow to the gas analyzer. The method can include simultaneously providing analysis data to client devices.

Abstract: Disclosed is a cyclone separator for separating a fluid into a gas phase and a liquid phase, which comprises: a vertically oriented vessel with cylindrical symmetry and which has a gas phase outlet at the upper end of the vessel and a liquid phase outlet at the lower end of the vessel, at least one tangentially oriented fluid inlet at the upper end below the gas phase outlet of the vessel, able to form a helical liquid flow down along the internal wall of the vessel, a liquid extractor extracting liquid through the liquid phase outlet at a rate which forms a bulk liquid phase at the lower end of the vessel with a relatively constant height level of the bulk liquid-gas interphase, a gas extractor extracting gas through the gas phase outlet, wherein the cyclone separator comprises at least one flow velocity deflector located at a level in proximity of the bulk liquid-gas interphase which changes the vertical velocity component of a liquid film travelling down the internal wall of the vessel to a horizontally or

Abstract: A deaerator includes a case defining a vortex chamber and a fluid inlet for allowing a mixture of lubricating liquid and air to pass through the case into the vortex chamber. An air outlet allows air flow out of the deaerator, and a liquid outlet allows lubricating liquid flow out of the deaerator. A porous diffuser is positioned proximate the liquid outlet for slowing the flow of lubricating liquid.

Abstract: A deaerator includes a case defining a vortex chamber, a fluid inlet for allowing a mixture of lubricating liquid and air to pass through the case into the vortex chamber, an air outlet for allowing air flow out of the deaerator, and a liquid outlet for allowing lubricating liquid flow out of the deaerator. A porous diffuser is positioned proximate the liquid outlet. A plate is positioned adjacent the porous diffuser and has a first surface in contact with the porous diffuser.

Abstract: A deaerator includes a case defining a vortex chamber and a fluid inlet for allowing a mixture of lubricating liquid and air to pass through the case into the vortex chamber. An air outlet allows air flow out of the deaerator, and a liquid outlet allows lubricating liquid flow out of the deaerator. A porous diffuser is positioned proximate the liquid outlet for slowing the flow of lubricating liquid.

Abstract: An example method of deaerating a mixture of fluid and air includes communicating a mixture of fluid and air directly against a wall of a reservoir to separate the fluid from the air. The method reuses the fluid held within the reservoir after the separating.

Abstract: A choke assembly comprises an inlet (48) for a multiphase fluid stream, the stream comprising a first relatively heavy fluid phase and a second relatively light fluid phase; a first fluid outlet (116); a choke element (22) disposed between the inlet and the first fluid outlet operable to control the flow of fluid between the inlet and the first fluid outlet; a separation chamber (40, 114) disposed to provide separation of phases in the fluid stream upstream of the choke element; and a second outlet (118) for removing fluid from the separation cavity. The choke assembly is of particular use in the control of fluid streams produced from a subterranean well, in particular oil and gas produced from a subsea well.

Abstract: An example deaerator assembly includes a housing having a housing inlet and a housing outlet. A conduit configured to communicate a deaerated coolant is located within the housing. A mixture of coolant and air is deaerated as the mixture is communicated from the housing inlet to the housing outlet within the housing and outside the conduit.

Abstract: A device for capturing gas included within a produced-water stream is described. Gas and water pressure coordination is not required. Controls prevent liquid entry to the gas system and prevent gas entry into the water system. A gas/liquid separator receives an inner vessel lower end. A separator inlet receives a combined fluid stream. A liquid line passes into the inner vessel and down into the separator below the inlet so that liquid separated from the combined stream will flow up the liquid line. Motor valves are in the liquid line and in a gas line. The gas line extends from the inner vessel upper end. The gas line conveys gas from the inner vessel upper end to a gas collection system. A top float in the inner vessel activates the gas line motor valve. A bottom float in the inner vessel activates the liquid line motor valve.

Abstract: A subsea system includes a multiphase pump, configured to transfer a multiphase fluid and a multiphase separator, configured to separate the multiphase fluid into solid, liquid, and gaseous phases. The multiphase separator includes a solid-liquid separation device, which is configured to facilitate separation of the solid phase and the liquid phase from the multiphase fluid. The multiphase separator includes a gas-liquid separation device, which is configured to facilitate separation of the gaseous phase and the liquid phase from the multiphase fluid. The multiphase separator includes a liquid reservoir, which is configured to contain a volume of the liquid phase to be used as a lubricant for the multiphase pump. Finally, the multiphase separator includes a liquid outlet, which is configured to transfer the liquid phase from the liquid reservoir to the multiphase pump.

Abstract: A two phase gas-liquid separation apparatus is provided that shapes the flow in a flow shaping line. Shaping the two-phase flow allows centrifugal force to send the heavier, denser liquid to the outside wall of the flow shaping line and allows the lighter, less dense vapor or gas to occupy the inner wall of the flow shaping line. With the gas positioned on the inner wall of the flow shaping line, an exit port on the inner wall will allow for the majority, if not all, of the gas, along with a low amount of liquid, to be sent to a conventional separator. A high ratio of vapor/liquid at a flow rate much lower than the total flow rate within the flow shaping line is sent to the conventional separator. This allows for efficient separation of the vapor from the liquid with the use of a smaller conventional separator.