Abstract: A hydrocarbon well pump has impellers and diffusers configured with inner and outer sections. The central section contains impeller passages configured for pumping liquid. The outer section contains turbine blades for compressing gas. A cylindrical sidewall separates the two sections. A driven shaft rotates the central and outer sections in unison.

Abstract: A technique is provided for pumping fluids from a wellbore. An electric submersible pumping system is deployed in a wellbore on a tubing. Free gas can potentially accumulate around the electric submersible pumping system, but a gas vent is positioned to remove free gas.

Abstract: There is provided a gas anchor for use in admitting fluids into a downhole sucker rod oil pump. The gas anchor includes an outer shell positioned around a hollow core, which defines an interior region and an exterior region of the gas anchor. The gas anchor further includes an upper region and a lower region. The hollow core and outer shell have a plurality of holes passing through the hollow core and outer shell, and the holes provide fluid communication from the exterior region to the interior region of the anchor. The hollow core and outer shell further define at least one channel which is in fluid communication from the upper region to the lower region. Additionally, the plurality of holes are formed so as to induce a cyclonic rotation on fluids passing into the interior region of the gas anchor.

Abstract: Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole.

Abstract: A submersible pump gas separator for a well pump has a housing with a rotatable shaft. A separating section in the housing separates heavier well fluid components into an area radially outward from the lighter components. A crossover member rotates with the shaft. The crossover member has a helical liquid passage having an inlet in fluid communication with the separating section for receiving the heavier components and an outlet in fluid communication with a liquid outlet of the housing. The crossover has a gas passage having an inlet in fluid communication with the separating section for receiving the lighter components and an outlet in fluid communication with a gas outlet of the housing.

Abstract: A downhole gas separator includes an external tube having a closed bottom and an open top; and an internal tube positioned eccentrically within the external tube and having an open bottom and a top adapted for connection to a production tube. The internal tube can alternatively be connected to a pump intake. The separator is positioned eccentrically within a casing, and provides for separation of gas from produced fluids before the fluids enter the production tube and/or pump.

Abstract: A well fluid homogenization device for use in a pumping system configured to recover fluids from a well includes a central hub and a plurality of posts extending from the central hub. The well fluid homogenization device is configured to rotate with a drive shaft to homogenize well fluid as the well fluid passes through a pumping system. The well fluid homogenization device is well-suited to be incorporated within gas separators and pump assemblies.

Abstract: A fluid flow control device having at least one bypass valve that is actuated in response to the movement of an annular body housed in the device. The annular body may be housed in a cylindrical housing and be a buoyant or non-buoyant body, such as a non-buoyant annular ring. The movement of the annular body in the cylindrical housing actuates the one or more bypass valves. Flow through the bypass valves returns the fluid to its source, for example, to an aquifer while maintaining a desired liquid level. The fluid flow control device can provide an effective means for regulating the elevation of subsurface fluids, for example, ground water, to enhance the efficiency of gas extraction from subsurface strata, for example, the extraction of methane from water and methane containing coal beds. Systems and methods of extracting gases from subsurface strata are also provided.

Abstract: Devices and methods for control flow of formation fluids respect to one or more selected parameter relating to the wellbore fluid. In one embodiment, a flow control device for controlling fluid flow into the production tubular uses a flow restriction member that is actuated by a character change of the formation fluid, such as liquid to gas or oil to water. The flow restriction member can be sensitive to a change in density of the formation fluid. The flow restriction member is passive, self-regulating and does not need any power source or control signal to control fluid flow. In one embodiment, the flow control device automatically rotates into a predetermined orientation upon being positioned in the wellbore. A seal disposed on the flow control devices expands into sealing engagement with an enclosure after the flow control device assumed the desired predetermined position.

Abstract: A gas restrictor for an intake of a horizontally oriented submersible well pump has a tubular housing and a number of apertures. A sleeve is mounted within the housing for rotation relative to the housing. The sleeve has an axially extending row of slots. At least one weight in the sleeve causes the sleeve to rotate to a position with the row of slots at the bottom of the sleeve while the well pump is oriented horizontally. The slots and apertures are arranged so that regardless of the particular orientation of the housing relative to the sleeve, at least one of the apertures will be in registry with one of the slots.

Abstract: Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole.

Abstract: A diffuser useful for sparging to remove contaminant in situ is described. The diffuser includes a first elongated member having a sidewall with a first portion of the length of the sidewall being microporous, and a second portion of the length of the sidewall having well screen sized openings with the first elongated member defining an interior hollow portion of the diffuser, a second elongated member having a second sidewall having a plurality of microscopic openings, said second member being disposed through the hollow region of said first member and a third elongated member having a third sidewall having a plurality of microscopic openings, said third member being disposed coaxial with the first and second members. An end cap is disposed to seal a first end of the third elongated member, and being in contact with the second elongated member forms a chamber.

Abstract: The present invention may be used as an apparatus and method for extracting oil from a hydrocarbon material bearing formation. A well may be positioned in a formation having hydrocarbon material with a well casing extending into the formation that may have a number of apertures formed in the casing wall adjacent to multiple zones of interest in the formation. A hydrostatic separator may have a specific gravity approximately equal to an oil that may be extracted from the formation and may be positioned and anchored in the well casing above and adjacent to an upper level of said formation. An extraction pipe may be disposed interior to the well casing with a lower end positioned above and adjacent a separator top and may have an upper end attached at a well head. The well head may be in fluid communication with an oil storage unit and in communication with a pressure application apparatus.

Abstract: According to one embodiment of the invention, a downhole separation method includes forming a main wellbore extending from a surface to a subterranean zone, disposing a production liner into the main wellbore proximate the subterranean zone, coupling a first end of a first tube to the production liner, coupling an entrance portion of a second tube to an outside surface of and adjacent a second end of the first tube such that an entrance of the second tube is at a lower elevation than the second end of the first tube, and causing a flow of a mixture through the production liner and the first tube. The mixture includes a gas, a liquid, and a plurality of coal fines. The method further includes retrieving the gas via the main wellbore after the mixture exits the second end of the first tube and retrieving at least the liquid through the second tube.

Abstract: A gas/liquid separator assembly for use in a tubing string located in a borehole of a well is provided. The separator assembly includes a tubular outer conduit having a lower inlet for introducing gas and liquids within the interior of the outer conduit. The outer conduit has an upper outlet to allow fluids to pass to the exterior of the outer conduit. A tubular inner conduit is disposed within the interior of the outer conduit. The inner conduit has a flow passage and an inlet for introducing liquids discharged from the outer conduit into the flow passage. The inner and outer conduits are rigidly joined together at a first end. An adaptor engages the inner and outer conduits at a second end to prevent lateral movement of the second end of the inner conduit within the outer conduit, while allowing relative longitudinal movement of the outer and inner conduits from longitudinal compression or tension forces applied to the outer conduit.

Abstract: A method of adapting a downhole multi-phase twin screw pump (10) for use in wells having a high gas content. A first step involves positioning a supplementary liquid channel (22,122) in a housing (12) of the pump in fluid communication with a pumping screw near an intake end (14) of the pump. A second step involves feeding supplementary liquid through the supplementary liquid channel to the pumping screw, thereby enhancing a liquid seal around the pumping screw.

Abstract: The present invention generally relates to an apparatus and method for removing hydrocarbons and other material from a wellbore. In one aspect, a method of drilling a sub-sea wellbore is provided. The method includes circulating a drilling fluid through a drill string from a surface of the sea to a drill bit in the wellbore. The method further includes pumping the fluid and drill cuttings from the sea floor to the surface with a multiphase pump having at least two plungers operating in a predetermined phase relationship. In another aspect, a fluid separator system having a first and a second plunger assembly is provided. The fluid separator system includes at least one fluid line for removing a fluid portion from the at least one plunger assembly and at least one gas line for removing gas from the first and a second plunger assembly.

Abstract: Disclosed is an electric submersible pumping system for use in wellbore. The electric submersible pumping system includes a motor assembly, a pump assembly and a seal section disposed in the wellbore. The pump assembly is below the motor and is driven by the motor. The seal section is between the motor assembly and the pump assembly, and protects the motor assembly from thrust generated in the pump assembly. The seal section includes a shaft that transmits torque from the motor assembly to the pump assembly. A labyrinth chamber in the seal section restricts the flow of wellbore fluids. The seal section can also include a mechanical seal, a thrust bearing, a bag type chamber, an abrasion resistant bearing, and a motor electrical termination.

Abstract: A system for separating fluids from a hydrocarbon well production fluid mixture at a subsea location has a centrifugal separator (16) for separating the mixture into gas and liquid. A hydrocyclone separator (32) then separates the liquid into oil and water and an oil-in-water sensor (38) detects the amount of oil in water leaving the separator. If the sensor (38) detects that the water contains more than the prescribed amount of oil, the water is recirculated through the hydrocarbon separator (32) for removal of further oil form water. The hydrocyclone separator (32) has a level interface sensor (66) and if this sensor detects that the oil/water interface is not within prescribed limits for optimum separation of the oil and water, the amount of oil removed from the separator is adjusted until the oil/water interface is within the prescribed limits.

Abstract: This invention relates to apparatus and methods used in the production of petroleum. The apparatus and methods maintain an amount of oil on oil well casing perforations for improved petroleum production. The apparatus for the production of petroleum includes: a pump intake tube having an opening, an oil anchor generally encircling the pump intake tube, the oil anchor having an open base and vent holes in the oil anchor above the opening of the pump intake tube, a casing generally encircling the oil anchor, and perforations in the casing that are below the opening of the pump intake tube and are above the open base of the oil anchor.

Abstract: The present invention generally relates to an apparatus and method for removing hydrocarbons and other material from a wellbore. In one aspect, a method of drilling a sub-sea wellbore is provided. The method includes circulating a drilling fluid through a drill string from a surface of the sea to a drill bit in the wellbore. The method further includes pumping the fluid and drill cuttings from the sea floor to the surface with a multiphase pump having at least two plungers operating in a predetermined phase relationship. In another aspect, a fluid separator system having a first and a second plunger assembly is provided. The fluid separator system includes at least one fluid line for removing a fluid portion from the at least one plunger assembly and at least one gas line for removing gas from the first and a second plunger assembly.

Abstract: An apparatus for promoting the flow of methane gas from a coal bed methane well. The apparatus may include a well casing extending into the earth to a cool seam aquifer. A conduit may be placed within the well and extend from the coal seam aquifer to the earth's surface. A pump may be connected to pump water from the coal seam aquifer through the conduit to the surface. A baffle may be placed in the gap formed between the interior surface of the well casing and the exterior surface of the conduit to the preferentially permit the flow of gas over the flow of water therethrough. The baffle may mitigate well bore pressure fluctuations, thus reducing the occurrence of pump gas lock and reducing well bore damage.

Abstract: A reciprocating downhole pump has a gas separator located at its bottom end. The separator forms a chamber that is expanded and contracted when the pump is reciprocated. Expansion and contraction of the chamber occurs by either the plunger reciprocating in the chamber or a piston coupled to the plunger reciprocating in the chamber. The chamber has an orifice therein so that during reciprocation fluid flows in and out of the orifice. The orifice is sized so as to subject the fluid to a pressure drop, wherein gas in the fluid is separated from the liquid.

Abstract: A well pump has a riser gas separator for removing large slugs of gas prior to reentry into the pump. The riser extends upward from a barrier that is located in the well. The riser has an inlet that is located above an effective intake of the pump. Well fluid must turn to flow down to the pump, with gas separating by gravity flowing upward while the liquid flows downward. The downhole assembly has various configurations to assure that fluid flows past the motor for cooling.

Abstract: The invention generally concerns a submersible well pumping system comprising an axially elongated housing and a multi-chamber hydraulically driven diaphragm pump suspended in a well. The pump is driven by a self-contained, closed hydraulic system, activated by an electric, pneumatic or hydraulic motor. Several embodiments are used to reverse the flow of working fluid into and out of the working fluid sub-chambers of a two chambered diaphragm pump to operate the diaphragm pump over all operating conditions including starts and stops, and low speed. Generally, the embodiments sense the end of the pumping stroke, either directly or by time. When the end of the pumping stroke is sensed, the direction of flow is reversed by changing the state of a directional valve, operating a reversing clutch, or by deactivating one prime mover-auxiliary pump and activating a second that operates in the reverse direction.

Abstract: The proposed device for operation of free flowing and gas lift oil wells relates to production of gas-liquid mixtures, and particularly of gasified oil, and can be used in wells if either the productive formation flows naturally or when compressed gas is artificially supplied to lift the liquid (i.e. gas lift production) and can be made in two embodiments. In first embodiments of the device for operation of free flowing and gas lift oil wells a device for modifying of a gas-liquid flow structure is placed inside a lift tubing string employed to lift the liquid and gas, which device is made in form of, at least, one float ball valve where radius and weight of the ball are selected depending on speed of the gas-liquid flow and diameter of the ball 0.8-0.9 of inner diameter of tubes of the lift tubing string.

Abstract: A tubular separation unit insertable into a caisson or tube for separating liquid from an upward flowing liquid/gas multi-phase stream, and including a centrifugal flow-induced liquid separator having a multi-phase gas/liquid inlet, a liquid outlet, and a gas stream outlet; a liquid transfer conduit connected to the liquid outlet of the flow separator; and a pump for pumping liquid, disposed below the separator and including a pump liquid inlet connected to the liquid transfer conduit and through which liquid separated in the separator is received, and a pumped liquid outlet through which separated liquid is, in use, caused to flow selectively.

Abstract: This disclosure concerns a static oil/water separation chamber that is installed in a well extending to an underaround production formation containing hydrocarbon oil and water. The separation chamber has an inlet for receiving well fluid from a section below the separation chamber and two outlets. One outlet discharges a water-enriched component into a discharge well section, and the other outlet produces an oil-enriched component. The height of the separation chamber is larger than the thickness of the dispersion band that is formed under normal operating conditions.

Abstract: Disclosed is an electric submersible pumping system for use in wellbore. The electric submersible pumping system includes a motor assembly, a pump assembly and a seal section disposed in the wellbore. The pump assembly is below the motor and is driven by the motor. The seal section is between the motor assembly and the pump assembly, and protects the motor assembly from thrust generated in the pump assembly. The seal section includes a shaft that transmits torque from the motor assembly to the pump assembly. A labyrinth chamber in the seal section restricts the flow of wellbore fluids. The seal section can also include a mechanical seal, a thrust bearing, a bag type chamber, an abrasion resistant bearing, and a motor electrical termination.

Abstract: An apparatus for promoting the flow of methane gas from a coal bed methane well. The apparatus may include a well casing extending into the earth to a coal seam aquifer. A conduit may be placed within the well and extend from the coal seam aquifer to the earth's surface. A pump may be connected to pump water from the coal seam aquifer through the conduit to the surface. A baffle may be placed in the gap formed between the interior surface of the well casing and the exterior surface of the conduit to the preferentially permit the flow of gas over the flow of water therethrough. The baffle may mitigate well bore pressure fluctuations, thus reducing the occurrence of pump gas lock and reducing well bore damage.

Abstract: A well pump has a riser gas separator for removing large slugs of gas prior to reentry into the pump. The riser extends upward from a barrier that is located in the well. The riser has an inlet that is located above an effective intake of the pump. Well fluid must turn to flow down to the pump, with gas separating by gravity flowing upward while the liquid flows downward. The downhole assembly has various configurations to assure that fluid flows past the motor for cooling.

Abstract: Method for operating a well installation utilizing a chamber in operative association with plunger lift to carry out deliquidfication. Injection gas may be employed for plunger lift in a manner wherein the injection channel is isolated from the primary annulus of the well adjacent the casing. Gas is produced through that primary annulus.

Abstract: A tubular separation unit insertable into a caisson or tube for separating liquid from an upward flowing liquid/gas multi-phase stream, and comprising: a centrifugal flow-induced liquid separator having a multi-phase gas/liquid inlet, a liquid outlet, and a gas stream outlet; a liquid transfer conduit connected to the liquid outlet of the flow separator; and a pump for pumping liquid, disposed below the separator and including a pump liquid inlet connected to the liquid transfer conduit and through which liquid separated in the separator is received, and a pumped liquid outlet through which separated liquid is, in use, caused to flow selectively.

Abstract: A lubrication technique for one or more components used in the production of subterranean fluids. The technique comprises the separation of particulates from a produced fluid having lubricating ability. Following separation of the particulate matter, the lubricating fluid is directed to specific areas, such as bearing surfaces within a submersible pump, to facilitate continued operation of the overall system.

Abstract: A downhole separator has a housing defining an interior cavity divided into a first chamber and a second chamber by a flow restricting bearing housing. A shaft driven impeller pumps production fluid into the first chamber and to the bearing housing. The bearing housing generates a pressure drop in production fluid entering the second chamber, separating gas from liquid. A vortex generator in the second chamber segregates the liquid to the outside and the gas to the inside of the second chamber. A downhole separation method includes pumping production fluid into a first chamber, and generating a pressure drop in the fluid as the fluid enters a second chamber to separate gas and liquid.

Abstract: A gas-liquid separator positionable down hole in a well bore includes an external tube having an external tube interior and an internal tube having an internal tube interior. The internal tube is positioned in the external tube interior to form an internal annulus defining a gas flowpath and the internal tube interior defines a reduced-gas fluid flowpath. A plate at least partially encircles the external tube to form a curved flow channel, which defines a produced fluid mixture flowpath. A first internal annulus opening is provided in the external tube, which defines a gas inlet port. An internal tube interior opening is provided in the internal tube, which defines a reduced-gas fluid inlet port. A produced fluid mixture is conveyed through the flow channel, which spins the produced fluid mixture about the external tube.

Abstract: An apparatus for separation of the fluid flow flowing through a pipeline into a light fraction and a heavier fraction has a tubular casing (2) arranged to constitute a section of the pipeline proper, a spin element (5) for rotation of the fluid flow at the upstream end of the casing (2), and a discharge element (12) downstream of the spin element (5) having opening (13) for discharge of the light fraction and possibly entrained heavier fraction. The apparatus also has a control separator (25) connected to the discharged element (12) and arranged to separate entrained heavier fraction from the light fraction, and a control system including a level transmitter (42) indicating the level of separate heavier fraction in the separator, and a level control unit (43) connected to the level transmitter (42) and to a drain valve (40, 41) in a separator outlet (28) for the light fraction.

Abstract: A downhole liquid and gas separator system has a pump, a separator and a motor, and a shroud around the pump, separator and motor. The shroud has a lower impermeable portion with a closed lower end and an upper porous portion. The upper end of the impermeable portion is above the inlet port for the separator so that production fluid flows upwards between the well casing and the shroud, over the upper end of the impermeable portion and downwards to the inlet port, generating a pressure drop and releasing gas before the production fluid enters the separator.

Abstract: A downhole liquid and gas separator system has a pump, a separator and a motor, and a shroud around the pump, separator and motor. The shroud has a lower impermeable portion with a closed lower end and an upper porous portion. The upper end of the impermeable portion is above the inlet port for the separator so that production fluid flows upwards between the well casing and the shroud, over the upper end of the impermeable portion and downwards to the inlet port, generating a pressure drop and releasing gas before the production fluid enters the separator.

Abstract: A gas separator has a separator member that rotates with a shaft for separation of fluid components. A flow divider directs more dense fluid to the pump and less dense fluid into an annulus surrounding the pump. An impeller is located within the flow divider for urging fluid out of a downstream gas exit port. A single large gas exit port is used and may be combined with use of a single large fluid inlet. An auger may be located within the rotary separator member. Holes may be located in the sidewall of the rotary member or chamber. The holes are preferably located in a helical pattern above and adjacent the flights of the auger or are in vertical columns adjacent the baffles. The chamber may have a cylindrical or tapered profile. Alternatively, a series of sub-chambers may be used, each having a smaller radius than the preceding, upstream sub-chambers.

Abstract: An intake assembly for a well pump restricts gas entry into the pump when the pump is located in a horizontal section of the well bore. The restrictor is located within a tubular intake housing. The intake housing has apertures for receiving the flow of well fluid. The apertures are spaced circumferentially around the housing. Once installed in the well, some of the apertures will be at higher elevations than others. The restrictor partially blocks at least one of the higher elevation apertures and opens at least one of the lower elevation apertures. The gas will be at the higher elevations, thus it is restricted from flowing in through the higher elevation aperture while the liquid freely flows into the lower elevation aperture. The restrictor may be of a buoyant material to float upward in the well fluid. The restrictor may also be open in response to contact with the casing wall.

Abstract: A downhole pump assembly is suspended by tubing in a well. The pump assembly has a separator attached below a progressing cavity pump with a flexible shaft to accommodate the concentric path of the shaft of the separator and the eccentric path of the rotor of the pump. Vanes on the shaft of the separator use centrifugal force to separate the heavier liquids from the lighter gases in the well fluids. The separator discharges the gas into the casing and the liquid to the pump. A motor drives both the separator and the pump. A gear reduction unit is located between the motor and the pump in order to reduce the rotational speed from the motor to the desired rotational speed of the rotor for the pump.

Abstract: A method and device for forming a preferred gas liquid flow structure via separation of liquid and gas phases. The method and device relate to the production of gas and oil in wells. The operation and spacing of the devices ensure that the quantity of liquid moved upward exceeds the quantity of liquid running downward. The devices are sequentially installed along a tubing column. A displacement chamber in the form of an upturned cup moves axially in the tubing column. The travel of the cup is defined and controlled by a formula. The cup can have side openings in its lower section and a flange in its upper section. The flange normally blocks gas exhaust openings in a sleeve secured between the ends of the tubing members. The flange can move axially along the tubing.

Abstract: A downhole separator has a housing defining an interior cavity divided into a first chamber and a second chamber by a flow restricting bearing housing. A shaft driven impeller pumps production fluid into the first chamber and to the bearing housing. The bearing housing generates a pressure drop in production fluid entering the second chamber, separating gas from liquid. A vortex generator in the second chamber segregates the liquid to the outside and the gas to the inside of the second chamber. A downhole separation method includes pumping production fluid into a first chamber, and generating a pressure drop in the fluid as the fluid enters a second chamber to separate gas and liquid.

Abstract: The main problem area this invention is solving, is concerning reservoirs containing gas with to low well-head pressure. It is therefore desirable to increase the well-head pressure by applying downhole pumps, however this is not possible if gas is present. The core idea in this present invention, is to place a pump (5) in a “bath” of oil (14), in which oil “bath” (14) makes a gas seal (11), assuring the pump only to be imposed to oil without gas. Oil and gas from the reservoir (1) flows trough perforations (2), into a ring-space (3). This creates a significantly pressure drop of the mixture, in which creates turbulence so the gas content will separate from the oil. The pressure drop is regulated by the gas pressure valve (4).

Abstract: A gas-liquid separator positionable down hole in a well bore includes an external tube having an external tube interior and an internal tube having an internal tube interior. The internal tube is positioned in the external tube interior to form an internal annulus defining a gas flowpath and the internal tube interior defines a reduced-gas fluid flowpath. A plate at least partially encircles the external tube to form a curved flow channel, which defines a produced fluid mixture flowpath. A first internal annulus opening is provided in the external tube, which defines a gas inlet port. An internal tube interior opening is provided in the internal tube, which defines a reduced-gas fluid inlet port. A produced fluid mixture is conveyed through the flow channel, which spins the produced fluid mixture about the external tube.

Abstract: It is common in oil extraction operations to reinject produced gas and\or water back into hydrocarbon bearing formations in order to maintain formation pressure. Conventional production facilities normally flow all formation fluids to the surface and subsequently reinject the required fluids back into the formation, which can be extremely inefficient due to the high power input required to overcome the large pressure differential between the surface and formation level. A production fluid handling method and apparatus for separating downhole at least gaseous and liquid components (16, 18, 20) of fluid produced from a hydrocarbon bearing formation (12), and reinjecting at least a portion of the gaseous and liquid components (16, 18, 20), as required, back into the formation (12). Re-injection also occurs downhole.

Abstract: A system (SPARC) for producing a mixed gas-oil stream wherein gas is to be separated and compressed downhole in a turbine-driven compressor before the gas is injected into a subterranean formation. A turbine bypass valve allows all of the stream to bypass the turbine during start-up until surging in the production stream has subsided. The valve then opens to allow a portion of the stream to pass through the turbine. Also, a compressor recycle valve recycles the compressor output until the surging in the stream has subsided while a check valve prevents back flow into the outlet of the compressor.

Abstract: “Well equipment transporting well fluid from a gassy well. A conduit is hung and sealed inside a string of casing, forcing the gas and well fluid to flow into the conduit. A gas separator and a series of flow controls and valves are mounted into and run with the conduit. A pump assembly is hung and sealed into the conduit for pumping well fluid to the surface. The pump assembly is lowered and retrieved from the conduit on tubing. The pump may be located below the motor, or above the motor.

Abstract: Method and apparatus for separating fluids flowing through a downhole well passageway including separating fluids pumped downhole, centrifugal separation, gradually increasing centrifugal acceleration, the establishment of annular flow, gradually establishing annular flow, a receiving chamber of increasing cross-sectional area of flow and method and apparatus for use of a fluid separator tool with tubing for downhole well operations, in particular with coiled tubing.