Abstract: Pump assemblies for subsurface fluid reservoirs include an upper portion connected to a fluid conduit extending to the surface, a lower portion connected to the upper portion and in fluid communication with a fluid reservoir of the wellbore, and a plunger assembly movably located within the upper and lower portion of the pump assembly. As the fluid pressure within the production tubing string, fluidly isolated from the inner tubing string, increases, fluid is forced into the pump assembly moving the plunger assembly upward to draw fluid into the lower portion of the pump and forces fluid out of the upper portion of the pump assembly and into the inner tubing string. As the fluid pressure within the production tubing string decreases, movement of the plunger assembly descends displacing fluid from the lower portion of the pump assembly into the upper portion through a fluid passageway extending through the plunger assembly.

Abstract: A parallel gas separator apparatus and method used in an electric submersible pump (ESP) system includes two or more internal mechanical separation chambers which operate in parallel to significantly increase both the processing capacity of the gas separator and the liquid production rate of the ESP system.

Abstract: A glass clamping model based on microscopic displacement experiment, including a frame, a transparent silicone sleeve having a horizontal through hole, a piston, a piston cap arranged on the frame, a connecting plate, a screw compression bracket, a clamp support, a glass sheet entirety placed in the transparent silicone sleeve, a boss, a light source and a microscope. The transparent silicone sleeve is sheathed on the piston cap, the piston penetrates through the horizontal penetration hole; the connecting plate and the clamp support are respectively connected to both ends of the frame, the end of the screw compression bracket is clamped between the frame and the connecting plate, and the piston and the frame are connected with the clamp support; an emptying channel and an inlet passage are respectively arranged at both ends of the piston, and an outlet passage is arranged at an end of the piston.

Abstract: A downhole gas-liquid separator (10) separates a gas from liquid in a well, with the liquid being pumped to the surface. The separator includes an outer tubular housing (12) and an inner flow tube (41) for passing the liquid phase to the surface after separation. In one embodiment, a spiral gas separator (32) imparts a helical flow to assist in separation of the gas from the well fluids. Gas from the separation chamber flows upwardly through a gas riser (25) to a downcomer (28), and then downwardly through the downcomer (28) to one or more gas vents (16) in the outer tubular housing (12). The gas riser and downcomer act as a liquid trap to exclude liquids in the annulus surrounding the tool to enter through the gas vents (16).

Abstract: A method and apparatus for gas and solids separation from down-hole fluids is disclosed, including particular structural means for forcing the de-gassing of the gaseous liquid, including means for changing the velocity of the gaseous liquid (speed changes on each exit from the tubes owing to the volume difference between the tubes and the chamber), means for changing the direction of the gaseous liquid (owing to the flow changing direction from exiting one set of tubes to travel to the opening to enter the next set of tubes), and means for changing the pressure of the gaseous liquid (owing perhaps in part to evolution of gas upon entering increased volume).

Abstract: A method of separating gas from a fluid mixture in a production stream of a well where the method includes using an outer tube and an inner tube positioned concentrically with the outer tube to separate gas and liquid from a mixture. The production stream is directed through the outer tube and into a space between a well casing of the well and the outer tube where gas in the production stream can separate from fluid in the production stream. The separated fluid is then directed through the inner tube to a pump.

Abstract: A method and apparatus for gas and solids separation from down-hole fluids is disclosed, including particular structural means for forcing the de-gassing of the gaseous liquid, including means for changing the velocity of the gaseous liquid (speed changes on each exit from the tubes owing to the volume difference between the tubes and the chamber), means for changing the direction of the gaseous liquid (owing to the flow changing direction from exiting one set of tubes to travel to the opening to enter the next set of tubes), and means for changing the pressure of the gaseous liquid (owing perhaps in part to evolution of gas upon entering increased volume).

Abstract: A gas separator for use in a wellbore. The separator has an annular, staged separator system, whereby a liquid-gas mixture is separated into its liquid and gas components. Gas components are allowed to escape up the annulus around the separator, while liquid components are captured on each stage and removed through an inner tube. The inner tube has limited entry ports. These ports may be sized such that ports at the top of the string have a smaller, more limited entry than those toward the bottom.

Abstract: Oil-gas separators and methods of using the oil-gas separators are disclosed. An exemplary oil-gas separator comprises a first fluid channel for receiving a well fluid, the first fluid channel having an open proximal end, a sealed distal end, and a plurality of perforations in a distal portion of the first fluid channel's exterior wall for expelling well fluid comprising oil and entrained gas into an annular space between the oil-gas separator and a well casing to produce gas-reduced oil and a second fluid channel for receiving the gas-reduced oil, the second fluid channel having a sealed proximal end, an open distal end for expelling the gas-reduced oil to the Earth's surface, and a plurality of perforations in a proximal portion of the second fluid channel's exterior wall for receiving fluid from the annular space.

Abstract: A separator for separating gas from a fluid mixture in a production stream of a well. The separator includes an outer tube and an inner tube positioned concentrically with the outer tube. The production stream is directed through the outer tube and into a space between a well casing of the well and the outer tube where gas in the production stream can separate from fluid in the production stream. The separated fluid is then directed through the inner tube to a pump.

Abstract: An embodiment of an injection arrangement including a principal fluid pathway having a first check valve; a bypass pathway fluidly connected to the principal fluid pathway upstream of the first check valve and connected to the principal fluid pathway downstream of the first check valve. Also a method for injecting a fluid including supplying an injection fluid to an injection arrangement as in any prior embodiment; flowing fluid through the bypass pathway; preventing fluid flow through the bypass pathway; and then flowing fluid through the principal fluid pathway.

Abstract: A downhole system and method for producing and unloading from a well unloads a first fluid through a tubular in the well while blocking flow of a second fluid into the tubular. In an alternate mode, the second fluid is produced through the tubular while the first fluid is blocked from entering the tubular. In another alternate mode, a third fluid is unloaded through the tubular at the same the second fluid is produced from the well and through the tubular. In yet another alternate mode, the second fluid is pressurized downhole. In one example, the first fluid includes water, the second fluid includes a hydrocarbon gas, and the third fluid includes a hydrocarbon liquid. Means for unloading include a pump, means for pressurizing the second fluid include a compressor, and means for selectively blocking flow includes a flow circuit with one-way valves.

Abstract: A global theoretical graphical representation of a soft sensor is generated based on a cursory model, where the soft sensor is used to control crude stabilization. A plurality of local real-life graphical representations are generated for the soft sensor, each of the plurality of local real-life graphical representations corresponding to a respective local regime. A global real-life graphical representation is generated for the soft sensor by combining the plurality of local real-life graphical representations. A set of numerical values for the soft sensor are generated based on the global real-life graphical representation. The soft sensor is updated based on lab results and a crude stabilization operation is controlled using the soft sensor.

Abstract: A method including determining a concentration of one or more components of a fluid during a wellbore servicing operation of a wellbore, and providing a trigger signal to actuate mechanical operation of a tool based on the determining of the concentration of the one or more components. The determining of the concentration of the one or more components includes contacting a sample of the fluid with a microelectromechanical system (MEMS) device to provide a sample response indicative of the concentration of the one or more components.

Abstract: A gas separator for use in a downhole production system includes a duct structure and a pump intake shroud.

Abstract: A gas venting system for an electrical submersible pump (ESP system includes a shroud and a venting system fluidically coupled to the shroud. The shroud is configured to encapsulate and fluidically seal an ESP system that includes an ESP and a motor operatively coupled to the ESP to drive the ESP. The shroud can receive well fluids including liquid components and gaseous components. The venting system can flow a portion of the gaseous components towards the surface before the gaseous components enter the ESP based on a quantity of the gaseous components received in the shroud exceeding a threshold gaseous component value.

Abstract: An apparatus for separating fluids and controlling flow of production fluid includes a support structure configured including a fluid conduit and a tubular assembly disposed at the support structure. The tubular assembly includes an outer tube defining a flow path and having an outer tube inlet in fluid communication with the production fluid, and at least one inner tube disposed eccentrically within the outer tube. The support structure and/or the tubular assembly is configured to cause a centrifugal force on the production fluid that at least partially separates the production fluid into a first fluid portion having a higher concentration of high density fluid than an initial concentration, and a second fluid portion having a higher concentration of the low density fluid than the initial concentration of the low density fluid. One or more inner tubes have an inner tube outlet in fluid communication with the fluid conduit.

Abstract: A fluid management system positioned in a wellbore for recovering a multiphase stream from the wellbore. The system comprising a downhole separator configured to produce a carrier fluid having a carrier fluid pressure and a separated fluid having a separated fluid pressure, an artificial lift device configured to increase the carrier fluid pressure to produce the turbine feed stream having a turbine feed pressure, a turbine configured to convert fluid energy in the turbine feed stream to harvested energy, the conversion fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream having a turbine discharge pressure less than the turbine feed pressure, and a pressure boosting device configured to convert the harvested energy to pressurized fluid energy, the conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure greater than the separated fluid pressure.

Abstract: A dual-stage sand and gas separator for use within a wellbore of a fluid producing well is disclosed. During sand separation, fluid is ported into a vortex housing and across a vortex cup which imparts a vortex motion on the fluid to separate solids from the fluid. Some of the solids are filtered by a sand filter screen, while heavier solids are diverted down hole by a diverter plate. The fluid pass internally through the vortex cup into the gas separation housing. During the gas separation phase, a sump is created by the transfer tubing and gas is separated from the fluid and ported away from the tubing.

Abstract: An apparatus, system and method for flow rate harmonization in electric submersible pump (ESP) gas separators. A method for flow rate harmonization in ESP gas separators includes modifying flow of multi-phase well fluid through vent passages of a crossover when a flow rate of a centrifugal pump differs from a flow rate of a gas separator including the crossover, the gas separator serving as the fluid intake into the centrifugal pump. Flow of fluid through vent passages is modified by one of attaching flow sizing inserts into vent passages or production passages of the crossover, or by attaching a funnel to a crossover inlet. A gas separator system includes a series of interchangeable funnels attachable to a fluid entrance of a crossover of the gas separator, wherein interchanging the particular funnel attached to the crossover modifies flow rate output of the gas separator.

Abstract: A method and apparatus for gas and solids separation from down-hole fluids is disclosed, including particular structural means for forcing the de-gassing of the gaseous liquid, including means for changing the velocity of the gaseous liquid (speed changes on each exit from the tubes owing to the volume difference between the tubes and the chamber), means for changing the direction of the gaseous liquid (owing to the flow changing direction from exiting one set of tubes to travel to the opening to enter the next set of tubes), and means for changing the pressure of the gaseous liquid (owing perhaps in part to evolution of gas upon entering increased volume).

Abstract: The present invention relates to a system for treatment of a mixture from a production well, said mixture comprising a first aqueous liquid and a second oily liquid, the treatment system comprising an extraction tube installed in said well and capable of conducting said mixture from the bottom of said well, a separator capable of separating the first liquid from the second liquid in said mixture, a first end of said tube being connected to the separator, a first injection means capable of injecting a first product into said tube, said first product being capable of improving the flocculation and coalescence of the second fluid in the mixture. Any diameter of the tube between said first end of the tube and a second end of said tube lies in an interval of 10% around a predetermined diameter.

Abstract: A system, method, and apparatus for separating liquid from gas in a horizontal well comprises a first tubing member comprising one of a screen-walled tube and a perforated tube, and a second tubing member configured inside the first tubing member, the second tubing member comprising a blank-walled tube section and one of a screen walled tube section and a perforated tube section, wherein the second tubing member has a smaller diameter than the first tubing member.

Abstract: A reservoir fluid production system for producing reservoir fluid from a subterranean formation is provided for mitigating gas interference by effecting downhole separation of a gaseous phase from reservoir fluids, while mitigating entrainment of liquid hydrocarbon material within the gaseous phase.

Abstract: A crossover system, method and apparatus for an electric submersible pump (ESP) gas separators. A crossover of an ESP gas separator includes a first helical pathway for higher density fluid that extends at an angle of 10° to 40° from a horizontal plane through the crossover, the first helical pathway fluidly coupled to a spider bearing including crescent shaped vanes that remove rotational momentum from the higher density fluid, a second helical pathway for lower density fluid that tangentially intersects a crossover jacket, the first helical pathway and the second helical pathway defined by a channel having teardrop shaped openings in the crossover jacket that define channel exit ports venting to a casing annulus, and teardrop shaped openings in a crossover skirt that define a channel entrance, where the first helical pathway is around the channel and the second helical pathway is through an inside of the channel.

Abstract: A crossover of an electric submersible pump (ESP) gas separator. The crossover comprises a skirt defining a plurality of exits, passageways, and entrances, each exit associated with one of the passageways and one of the entrances, wherein each entrance is proximate to an inner chamber of the gas separator and a jacket circumferentially surrounding the skirt and defining a plurality of exits, wherein the rotational position of the jacket relative to the skirt is adjustable.

Abstract: An odor venting water pump system uses an air pump to agitate well water within a well enclosure in order to separate unpleasant smelling gases from the well water. A water pump is positioned at the bottom of a well enclosure and surrounded by well water received into the well enclosure from the surrounding ground water supply. An air tube is connected to an air pump and a terminal end of the air tube is positioned at the lower end of a venting pipe which has an inlet to accept well water. The pumped air agitates the water within the venting pipe and pushes the air/water mixture upwards through the venting pipe to an outlet, where the water returns to the main water supply while the odious gases are free to exit the well enclosure through an air vent at the upper end of the well enclosure.

Abstract: A well pump assembly has a pump housing with an intake member. A barrel has a barrel head secured to and extending downward from the intake member. A plunger is reciprocally carried in the barrel bore. An intake passage extends coaxially in the intake member and the barrel head into the barrel bore above the plunger. An intake port extends from an exterior of the intake member to the intake passage. A nozzle is secured within in the intake passage. The nozzle has an orifice passage with a downward converging section extending downward to a constant diameter section. The constant diameter section has a smaller diameter than the intake passage.

Abstract: There is provided parts for assembly to produce a flow diverter configured for disposition within a wellbore. The parts include an insert-receiving part including a passageway, and a flow diverter-effecting insert configured for insertion within the passageway. The flow diverter-effecting insert is co-operatively configured with the insert-receiving part such that a flow diverter is defined while the flow diverter-effecting insert is disposed within the passageway. The flow diverter is configured for: receiving and conducting a reservoir fluid flow; discharging the received reservoir fluid flow into the wellbore such that gaseous material is separated from the discharged reservoir fluid flow within the wellbore, in response to at least buoyancy forces, such that a gas-depleted reservoir fluid flow is obtained; and receiving and conducting the obtained gas-depleted reservoir fluid flow.

Abstract: There is provided parts for assembly to produce a flow diverter configured for disposition within a wellbore. The parts include an insert-receiving part including a passageway, and a flow diverter-effecting insert configured for insertion within the passageway. The flow diverter-effecting insert is co-operatively configured with the insert-receiving part such that a flow diverter is defined while the flow diverter-effecting insert is disposed within the passageway. The flow diverter is configured for: receiving and conducting a reservoir fluid flow; discharging the received reservoir fluid flow into the wellbore such that gaseous material is separated from the discharged reservoir fluid flow within the wellbore, in response to at least buoyancy forces, such that a gas-depleted reservoir fluid flow is obtained; and receiving and conducting the obtained gas-depleted reservoir fluid flow.

Abstract: There is provided apparatuses, and related systems, for effecting production of oil from a reservoir. A flow diverter is provided and configured to direct flow of reservoir fluids such that gases and solids are separated. A system is also provided, including the flow diverter, and is disposed within a wellbore. A pump is also provided, and disposed in fluid communication with, and downstream from, the flow diverter, for receiving reservoir fluids from which gaseous and solid material have been separated by the separator.

Abstract: An absorber is provided which uses a liquid solvent formed into a myriad of bubbles and micro-droplets. The solvent froth is a solvent for a selected component in an incoming gas stream. A plurality of spaced apart screen assemblies is placed in a reaction vessel. Using screens having cross-sections that are substantially rectangular wave in design together with proper operating parameters, the phenomenon of solvent plug pulsing is induced and maintained, maximizing efficiency of the absorber.

Abstract: A separator for separating gas from a fluid mixture in a production stream of a well. The separator includes an outer tube and an inner tube positioned concentrically with the outer tube. The production stream is directed through the outer tube and into a space between a well casing of the well and the outer tube where gas in the production stream can separate from fluid in the production stream. The separated fluid is then directed through the inner tube to a pump.

Abstract: There is provided apparati and systems for producing hydrocarbons from a subterranean formation, when reservoir pressure within the subterranean formation is insufficient to conduct hydrocarbons to the surface through a wellbore. The apparati and systems utilize a downhole pump and, in some cases, combine a downhole pump with a gas lift apparatus, in order to effect artificial lift of the hydrocarbons.

Abstract: There is provided apparatuses, and related systems, for effecting production of oil from a reservoir. A separator is provided and configured to mitigate problems with solid debris accumulation within the wellbore. A system is also provided, including the separator, and is disposed within a wellbore. A pump is also provided, and disposed in fluid communication with, and downstream from, the separator, for receiving reservoir fluids from which gaseous and solid material have been separated by the separator.

Abstract: A system, including: a subsea separation system that separates sales and non-sales fluids, wherein the subsea separation system includes a fluid polishing system; a seal-less pump that boosts production fluid pressure; and a water quality monitoring system, including an oil-in-water sensor and a solids-in-water sensor, that monitors a fluid discharged from the subsea separation system.

Abstract: A method of producing fluids from a reservoir includes isolating a vertical section of a wellbore from a horizontal section; isolating a production tubing from the reservoir; pumping fluid from the reservoir adjacent a toe segment into a production tubing toe segment and towards the heel segment; and pumping fluid from the reservoir adjacent a heel segment into the production tubing heel segment and towards the vertical section, and pumping fluid up the vertical section to the surface.

Abstract: A method and system for testing a pumping device (9) with a control unit (91) in a gas-measuring system (1). The pumping device (9) is tested with the control unit (91), which is configured to test readiness of the pumping device (9) to operate. An initialization data set and an operating data set are used for the testing. An indicator of readiness of the pumping device (9) to operate is determined based on this.

Abstract: Downhole gas separators, artificial lift systems including the downhole gas separators, hydrocarbon wells including the artificial lift systems, and methods of separating a gas from a liquid hydrocarbon within a hydrocarbon well. The downhole gas separators include an elongate outer housing that defines an enclosed volume, a fluid inlet port, and a gas outlet port. The downhole gas separators further include an elongate dip tube that extends within the enclosed volume, and the gas outlet port is configured to selectively provide fluid communication between the enclosed volume and an external region.

Abstract: Artificial lift apparatus, systems, and methods for use in a deviated or horizontal wellbore, including a downhole gas separators, hydrocarbon wells including the artificial lift systems, and methods of separating a gas from a liquid hydrocarbon within a hydrocarbon well. Included is a downhole gas separator positioned in a deviated or horizontal wellbore, further including a flow-regulating device configured to restrict fluid flow through the gas outlet during at least a portion of each intake stroke of a reciprocating pump and to permit the fluid flow during at least a portion of each exhaust stroke of the reciprocating pump.

Abstract: A weighted intake member for a gas separator is mountable on a flow tube and defines an intake port. The weighted intake member includes a weight proximate the intake port. In a deviated well, gravity acting on the weight biases the weighted intake member toward an orientation in which the intake port faces a low side of the gas separation chamber of the gas separator. One end of the gas separator is for connection to a pump in a production well, and an opposite end of the gas separator body could carry a plug or a sub. The sub could be coupled to a section of production tubing or to a sump, and a plug or a check valve could be coupled to the sump. A sump could be provided in a gas separator with or without a weighted intake member. Related methods are also disclosed.

Abstract: A downhole fluid separation apparatus can include multiple sections connected together with connectors, the connectors providing fluid communication between annuli in adjacent ones of the sections, and between inner conduits in adjacent ones of the sections. Each connector can include at least one flow passage providing communication between an inner conduit of each of the connected sections, and another flow passage providing communication between an annulus of each of the connected sections. A bypass valve can be included that opens in response to a predetermined differential pressure between an exterior of the apparatus and the inner conduits.

Abstract: The present invention concerns a system for extracting the liquids from a well producing liquid and gas. The system comprises a separation wall defining, in the well, a first space and a second space; a liquid-gas separator; and a system for eliminating separated liquid. The first space is suitable for conveying a mixture comprising the gas and liquid from a production area to the separator. The separator is suitable for separating the gas and liquid from the mixture. The second space receives the liquid separated from the mixture. Finally, the elimination system is suitable for eliminating the separated liquid using at least the gravitational potential energy of said separated liquid in the second space.

Abstract: A gas separator for use in a downhole production system includes a duct structure and a pump intake shroud.

Abstract: An inverted Y-tool is positioned in multiphase wellbore fluid flowing through a wellbore. The inverted Y-tool separates at least a portion of gas from the multiphase wellbore fluid and, after separating at least the portion of the gas from the multiphase wellbore fluid, directs the multiphase wellbore fluid to a downhole pump that pumps the wellbore fluid in an uphole direction.

Abstract: A fluid management system positioned in a wellbore for recovering a multiphase stream from the wellbore. The system comprising a downhole separator configured to produce a carrier fluid having a carrier fluid pressure and a separated fluid having a separated fluid pressure, an artificial lift device configured to increase the carrier fluid pressure to produce the turbine feed stream having a turbine feed pressure, a turbine configured to convert fluid energy in the turbine feed stream to harvested energy, the conversion fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream having a turbine discharge pressure less than the turbine feed pressure, and a pressure boosting device configured to convert the harvested energy to pressurized fluid energy, the conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure greater than the separated fluid pressure.

Abstract: There is provided apparatuses, and related systems, for effecting production of oil from a reservoir. A separator is provided and configured to mitigate problems with solid debris accumulation within the wellbore. A system is also provided, including the separator, and is disposed within a wellbore. A pump is also provided, and disposed in fluid communication with, and downstream from, the separator, for receiving reservoir fluids from which gaseous and solid material have been separated by the separator.

Abstract: A method for determining at least one zonal flow rate of a reservoir well comprises: receiving input data representing at least one state parameter of the reservoir well; determining a generative model of the at least one state parameter and a generative model of the at least one zonal flow rate; iteratively adapting the generative models to minimize divergence from available data until the generative models and the available data converge; and, once the generative models and the available data converge, using the generative model of the at least one zonal flow rate to compute the at least one zonal flow rate.

Abstract: A system for monitoring one or more downhole parameters. The system includes a downhole base gauge configured to receive power from a surface power drive and to communicate data with a surface computing device and a plurality of downhole remote sensors coupled to the base gauge in series and configured to generate data indicative of one or more observable parameters. The base gauge is further configured to query one of the remote sensors and, in response to such a query, the remote sensor is configured to transmit data indicative of the observable parameter associated with that sensor to the base gauge.

Abstract: There is provided apparatuses, and related systems, for effecting production of oil from a reservoir. A flow diverter is provided and configured to direct flow of reservoir fluids such that gases and solids are separated. A system is also provided, including the flow diverter, and is disposed within a wellbore. A pump is also provided, and disposed in fluid communication with, and downstream from, the flow diverter, for receiving reservoir fluids from which gaseous and solid material have been separated by the separator.