A compressor system comprising a compressor and a mineral insulated cable, wherein the mineral insulated cable provides power to the compressor.

An impeller blade that includes an impeller blade body constructed of a first material. The impeller blade body defines a leading edge that faces a direction of rotation. A second material couples to the leading edge. The second material is a more erosion resistant material than the first material. The second material extends over the leading edge a distance to absorb high angle impacts of droplets and/or particulate. A third material couples to at least a portion of the impeller blade body.

In accordance with embodiments of the present disclosure, a electrical submersible pump includes a pump housing, a shaft extending at least partially through the pump housing and adapted to be driven by a submersible motor, an impeller attached to the shaft and having an impeller passage for fluid to flow therethrough, and a diffuser that is stationary relative to the pump housing and having a diffuser passage, wherein the diffuser is disposed corresponding to the impeller to form a pump stage such that fluid can flow between the impeller passage and the diffuser passage. The electrical submersible pump also includes a labyrinth seal formed between the impeller and the diffuser, wherein the labyrinth seal selectively seals the impeller passage from a cavity formed between the impeller and the diffuser to maintain the impeller in a floating condition relative to the diffuser.

This disclosure describes various implementations of a downhole-blower system that can be used to boost production in a wellbore. The downhole-blower system includes a blower and an electric machine coupled to the blower that can be deployed in a wellbore, and that can, in cooperation, increase production through the wellbore.

A supersonic compressor provided may include an axial inlet and a centrifugal impeller fluidly coupled to the axial inlet. The centrifugal impeller may have a periphery and may be configured to impart energy to process fluid received via the axial inlet and discharge the process fluid from the periphery in at least a partially radial direction. The supersonic compressor may further include a static diffuser circumferentially disposed about the periphery of the centrifugal impeller and configured to receive the process fluid from the centrifugal impeller and convert the energy imparted. The static diffuser may include a plurality of diffuser vanes defining diffuser passageways therebetween. A supersonic ramp may be formed at an end of the at least one diffuser vane proximate the periphery of the centrifugal impeller. The supersonic ramp may be configured to generate a shock wave from the process fluid.

A watertight enclosure for the underwater confinement of a device includes a set of ellipsoidal modules juxtaposed in a watertight manner and internally delimiting at least one volume receiving the device. It has been found that producing a watertight enclosure by means of juxtaposed ellipsoidal modules enables a total weight saving of the order of one third compared to a cylindrical envelope.

A pumping system for use in moving a fluid present within a well casing and through a production tubing is provided. The pumping system includes a housing coupled to the production tubing. The pumping system further includes a first pump coupled to the housing and having a first flow capacity and a second pump coupled to the housing and having a second flow capacity. The second flow capacity is different than the first flow capacity. A motor is coupled to the first pump and the second pump, wherein the motor is configured to selectively operate at least one of the first pump and the second pump based on a flow capacity of the fluid present within the well casing.

A subsea assembly comprising an electric subsea machine having an electric motor driving an operator, and a coolant circuit at least partially located in thermal contact with the electric motor, the coolant circuit including a cooling assembly located externally from the subsea machine, the cooling assembly comprising at least a heat transfer element, the subsea machine and the cooling assembly being supported by a common supporting frame; at least a part of the heat transfer element is integrated in the frame.

A submersible well fluid system for operating submerged in a body of water may include an electric machine and a fluid end. The electric machine includes a rotor and a stator residing in a first housing at specified conditions. The fluid end may include an impeller and be coupled to the electric machine. The submersible well fluid system may also include an adjustable speed drive for the electric machine in the housing. The submersible well fluid system may also include a chemical distribution system for supplying treatment chemicals to the submersible well fluid system, a barrier fluid supply system for supplying a barrier fluid to the submersible well fluid system, and a pressure management system.

Various subsea production arrangements may utilize a base module and a pump module including one or more subsea pumps, such as ESPs or subsea centrifugal pumps, the base module and pump module being fluidly coupled together. An adjustable foot may be utilized to at least partially support the pump module at a horizontal distance from the base module. A horizontally oriented pump module may be equipped with a truss arrangement designed to reduce bending loads on the pump module. The base module and pump module may be delivered to a subsea location separately or in a single trip. A modular subsea production arrangement may enable low cost installation and/or operation and high adaptability of various combinations of well production equipment. Certain subsea production arrangements may include one or more retrievable FCU/LCU modules for use with subsea apparatus, such as pumps and compressors.