A gas-oil separation plant (GOSP) is configured to process crude oil produced from a well. A production stream from the well operates at a first pressure. A processed crude oil stream from the GOSP flows to a multi-phase ejector. The multi-phase ejector induces flow of a production stream from the well in response to the flow of the processed crude oil stream.

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

A hydraulic jet pump for transference of a fluid medium and method for use of the same are disclosed. In one embodiment of the hydraulic jet pump, a power fluid inlet adapter communicates through a jet nozzle to a mixing tube along a power fluid inlet flow path. In a first configuration, an axial diverter member traverses the jet nozzle and the diffusing chamber. In a second configuration, the mixing tube has an inlet that is axially aligned with the jet nozzle. In a third configuration, the mixing tube has at least two inlets, one that is axially aligned with the jet nozzle and another that is angularly offset from the alignment of the jet nozzle and the mixing tube. One of the three configurations is selected prior to downhole deployment of hydraulic jet pump.

A wellbore pumping system (10) has at least one jet pump (18, 20) disposed in a tubular string (12) inserted into a subsurface wellbore (II). An intake of the jet pump is in fluid communication with a subsurface reservoir. A discharge of the jet pump is in fluid communication with an interior of a tubular string extending to the surface. A fluid bypass (24, 26) fluidly connects the inlet and discharge of the jet pump. The fluid bypass in some embodiments is operable to enable fluid flow when a differential pressure of fluid pumped into the tubular string from the surface exceeds a predetermined pressure. Another aspect includes a pump system having two separately operable jet pumps in tandem in a wellbore tubular string.

A system for extracting gas from a tectonically-deformed coal seam in-situ by depressurizing a horizontal well cavity is provided. A horizontal well is constructed by a horizontal well drilling and reaming subsystem and adjoins a vertical well to form a U-shaped well, and a horizontal section of the horizontal well is reamed to enlarge hole diameter. A horizontal well hole-collapse cavity-construction depressurization excitation subsystem performs pressure-pulse excitation and stress release on the horizontal well of tectonically-deformed coal bed methane, and hydraulically displaces a coal-liquid-gas mixture such that the mixture is conveyed towards a vertical well section along a depressurizing space. A product lifting subsystem further pulverizes the coal and lifts the mixture towards a wellhead of a vertical well. A gas-liquid-solid separation subsystem separates the coal, liquid and gas. A monitoring and control subsystem detects and controls the operation conditions and the execution processes of technical equipment in real time.

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

A gas-oil separation plant (GOSP) is configured to process crude oil produced from a well. A production stream from the well operates at a first pressure. A processed crude oil stream from the GOSP flows to a multi-phase ejector. The multi-phase ejector induces flow of a production stream from the well in response to the flow of the processed crude oil stream.

An artificial lift system including a tubular extending into a wellbore. The tubular includes a first end arranged at a surface of a formation, a second end terminating in the wellbore, and an intermediate portion. The intermediate portion includes a plurality of gas lift valves. A jet pump is fluidically connected to the second end of the tubular. A liquid supply conduit includes a terminal end arranged at the first end of the tubular and a gas supply conduit includes a terminal end portion arranged at the first end of the tubular.

A wellbore jet pump includes a nozzle body with a tapering nozzle passage therein and a pump body with a main passage that receives the nozzle body therein so as to define within the main passage (i) an intake section surrounding the nozzle body, (ii) a mixing section immediately above the nozzle body, and (iii) a diffuser section diverging upwardly from the mixing section. A bypass conduit directs a working fluid downwardly alongside the pump body and upwardly into one of the nozzle passage or the intake section so that produced fluids are drawn into the other one of the nozzle passage or the intake section for subsequent mixing of the working fluid and the produced fluid in the mixing section. In this manner both the working and produced fluids are accelerated before entering the mixing section to increase pump efficiency.

A jet pump comprising a pump housing containing a jet nozzle and a throat diffuser nozzle. The jet nozzle is comprised of a jet nozzle insert disposed in an axial inner bore of a precision jet cylindrical body and formed of an ultra-hard material. The throat diffuser nozzle is comprised of a throat diffuser nozzle insert disposed in an axial inner bore of a precision throat diffuser cylindrical body and also formed of an ultra-hard material. The jet nozzle and throat diffuser nozzle are disposed in an elongated cylindrical central bore portion of a tubular side wall of the pump housing. In order to achieve highest concentricity of the axial inner bores, the axial inner bore of the jet nozzle insert and the axial inner bore of the throat diffuser nozzle insert are formed after placement in the precision cylindrical bodies.