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 system for hybrid gas lifting may include a gas-lift completion arranged to inject high-pressure gas into production tubing of a well. The system may include a downhole annular jet pump. The downhole annular jet pump may include an annular nozzle arranged to receive the injected high-pressure gas. The injected high-pressure gas exits the annular nozzle as an annular high-velocity gas jet. The downhole annular jet pump may include a throat section arranged to receive the annular high-velocity gas jet, and to mix the annular high-velocity gas jet with a low-pressure production fluid. The downhole annular jet pump may include a diffuser section arranged to facilitate conversion of kinetic energy into pressure energy in a mixture of the annular high-velocity gas jet and the low-pressure production fluid, and to produce the mixture to a surface via the production tubing.

A downhole wellbore treatment system for and a method of treating an inner surface (FT) of a wellbore (W) is provided. The system comprises an elongate conduit (50) such as a flexible hose (50) for conveying treatment fluid from the surface (P; C) to a treatment head (80) adapted to be inserted into the wellbore (W). The treatment head (80) has a nozzle (83) providing an outlet from the conduit (50) for creating a jet of treatment fluid directed at the inner surface (FT) of the wellbore (W). The treatment head (50) is rotationally disconnected from the conduit (50) by a swivel device (70), allowing rotation of the head (50) relative to the conduit (50) during jetting of the treatment fluid. The elongate conduit (50) is reelable (10) and is inserted into the downhole wellbore (W) from a reel (10) at the surface, through a pressure control device (40) containing wellbore pressure within the downhole wellbore (W) during insertion of the elongate conduit (50) from the reel (10).

A method for testing an integrity of a primary barrier arranged in a well includes arranging a first sealing device above the primary barrier in a position axially spaced from the primary barrier in the well, which establishes a test chamber confined by the first sealing device and the primary barrier. The method further includes arranging a second sealing device above the first sealing device in a position axially spaced from the first sealing device in the well, which establishes a further test chamber between the first sealing device and the second sealing device. The method also includes reducing a pressure of the test chamber to a predetermined test pressure, monitoring the pressure of the test chamber and a pressure of the further test chamber after the pressure reduction, and verifying the integrity of the primary barrier if no pressure increases or decreases are detected in the test chamber after the applied pressure reduction.

The object of the present invention is to create the elements and parts necessary to supply lifting energy to a motionless fluid in a fluid container, together with the capability to change the level or position where the motive fluid can be injected. It is done with a string and an artifact that utilizes the educing principle to draws forth a motionless fluid and induce its movement using another fluid (motive fluid) as a medium. The main part of the invention is this educing artifact that can be fabricated in one body without moving parts, but it also can be fabricated adding optional features such as an outer ring used as sealing mechanism around the artifact that seals the communication between the lower and the upper sides of the fluid container. The artifact operates with a fluid fed by a pumping or compression system.

Disclosed herein are various embodiments of methods and systems for drilling a wellbore into an oil or gas production zone to prevent formation damage in the reservoir using underbalanced or near-balanced drilling techniques, wherein a jet pump drilling assembly is used to create a vacuum around the drill bit. The design of this jet pump drilling assembly prevents the flow of all drilling/power fluid from entering a drill bit Only fluids from the reservoir are allowed to enter the drill bit. The assembly includes a barrier to ensure that no drilling/power fluid discharged from the jet pump located above the drill bit can flow back around to the jet pump jet pump suction ports located in the drill bit thus preventing any drilling/power fluid from ever contacting the drill bit.

A resource exploration and recovery system including a first system, and a second system extending into a wellbore. The second system includes a completion having a casing defining a wellbore internal diameter. Chemical injection tubing extends from the first system into the completion. The chemical injection tubing includes a terminal end portion. A chemical introduction system is arranged at the first system and fluidically connected to the chemical injection tubing. The chemical introduction system is operable to deliver a chemical into the chemical injection tubing. A chemical injection assembly is mounted to the terminal end portion. The chemical injection system includes an anchor system operable to secure the chemical injection assembly to the casing.

A resource exploration and recovery system includes a first system and a second system extending into a wellbore. The second system includes a completion having a casing defining a wellbore internal diameter. Chemical injection tubing extends from the first system into the completion. The chemical injection tubing includes a terminal end portion. A chemical introduction system is arranged at the first system and fluidically connected to the chemical injection tubing. The chemical introduction system is operable to deliver a chemical into the chemical injection tubing. A chemical injector assembly is mounted to the terminal end portion. The chemical injector assembly includes a propulsion system.

An artificial lift system has a surface pump operated by a prime mover powered by a variable speed drive. A jet pump disposed downhole in tubing receives pressurized power fluid from the surface pump, mixes the power and production fluid and delivers the product uphole. A controller disposed at surface adjusts the artificial lift system relative to a set value based on a measured discharged pressure or a measured flowrate and trends a change in the other of the measured flowrate or the measured discharged pressure over time. The controller can also trend an operating condition (intake pressure vs. production rate) to determine changes relative to cavitation conditions. Based on the trended changes, the controller initiates an operation in the artificial lift system, such as adjusting the discharge pressure, initiating an alarm condition, etc.

A pump system includes a centrifugal pump having an impeller, a first inlet arranged to receive a first flow of liquid, a second inlet arranged to receive a flow of gas at a first pressure, the gas being soluble in the liquid, and an outlet arranged to discharge a second flow of liquid that contains the flow of gas solubilized therein. An injection pump has an inlet arranged to receive the second flow of liquid. The injection pump is operable to increase the pressure of the second flow of liquid to produce a high-pressure flow of liquid, and includes a discharge arranged to discharge the high-pressure flow of liquid.