Halliburton Energy Services, Inc.

Baker Hughes, a Ge Compnay, LLC

Baker Hughes Corporation

Baker Hughes Holdings LLC

Steven W Pyron

Jeffrey G Frey

Kevin R Bierig

Kelsey A McKinney

Kelsey A Mckinney

Ryan P Semple

David Tanner

Jason Eugene Hill

Ignacio Martinez

Dan A Merrill

Matthew Thomas King

Robert Clay Patterson

Jimmy J Donnell

Jason Hill

One or more check valves may be used in a motor protector for an ESP assembly. Disclosed embodiments relate to a check valve adapter configured to provide additional versatility regarding such check valves. The adapter may have a first end portion, configured for removable attachment to an NPT screw-style vent port, and a second end portion configured to receive a cartridge-style check valve. The first end portion of the adapter is in fluid communication with the second end portion, and the second end portion can be configured to receive the cartridge-style check valve in either orientation, thereby allowing fluid flow through the adapter in either direction merely based on the orientation of the cartridge-style check valve. Systems for using an adapter with a cartridge-style check valve in an ESP assembly, as well as methods of controlling fluid flow in a motor protector using such an adapter, are also disclosed.

Check valve adapter for electrical submersible pumps

An electric submersible pump (ESP) assembly. The ESP assembly comprises a seal section that comprises a housing and at least one sacrificial anode assembly. The at least one sacrificial anode assembly comprises a sacrificial material suitable to attenuate the corrosive effect of HS fluid (hydrogen sulfide) and comprises a containment disposed inside the housing. The containment defines an annulus between an outside of the containment and an inside of the housing. The containment is disposed around the sacrificial material. The containment defines interiorly an initially void space downhole of the sacrificial material. The at least one sacrificial anode assembly defines a folded fluid flow path through the sacrificial material.

Sacrificial anode assembly for a seal section of an electric submersible pump (ESP) assembly

An electric submersible pump (ESP) seal section assembly. The assembly comprises a seal section filled with dielectric oil; a coupling body partially inserted into the seal section, and a coupling body, wherein the coupling body is substantially cylindrical and has a first outside diameter at an upper end of the coupling body, has a second outside diameter smaller than the first diameter below the first outside diameter, has a circumferential tapered shoulder between the portion of the coupling body having the first diameter and the portion of the coupling body having the second diameter; a service-less flange coupled to the seal section, wherein the service-less flange defines a circumferential opening having a circumferential tapered shoulder on an upper edge that contacts the circumferential tapered shoulder of the coupling body.

Electrical submersible pump (ESP) seal section service-less flange

A submersible well pump assembly has a pump, a motor, and a tubular pressure equalizer housing located between the pump and the motor. A rotatable drive shaft extends within the housing on the axis for driving the pump. A guide tube surrounds the drive shaft, defining an inner annulus between the drive shaft and the guide tube and an outer annulus between the housing and the guide tube. A well fluid inlet path admits well fluid into the outer annulus. A hub assembly is pivotally mounted to the guide tube. The hub assembly has a communication passage with having at least one lateral portion extending away the axis and a communication passage opening spaced from the axis and in fluid communication with the outer annulus. The hub assembly has a counterweight that rotates the communication passage opening to a point above the axis while the axis is horizontal.

Labyrinth chamber for horizontal submersible well pump assembly

A well pump assembly includes a pump and a motor that contains a dielectric motor lubricant and a pressure equalizer containing a bellows. The bellows has an interior in fluid communication with the motor lubricant and an exterior immersed in well fluid. The bellows is axially extendable and contractible in response to a pressure differential between the well fluid and the motor lubricant. A tube has a lower end secured to a tube port in the pressure equalizer housing and an upper end secured to a lower end of the bellows. The tube has a center line that makes at least one curved flexible bend between the tube upper end and the tube lower end to enable the tube to flex as the bellows extends and contracts.

Flexible hose for bellows pressure equalizer of electrical submersible well pump

A submersible pump assembly has modules, including a rotary pump, an electrical motor, and a seal section located between the motor and the pump. The seal section has a tubular housing with a lower adapter secured to the housing and joining the seal section with the motor. An upper adapter is secured to the housing and joins the seal section with another one of the modules. An inlet port in the upper adapter admits well fluid into the housing. A tubular, flexible compensator element has an upper end sealed to the upper adapter and a lower end sealed to the lower adapter. A communication passage in the lower adapter admits lubricant from the motor into the compensator element. A cap is mounted around the upper end of the compensator element. The cap has a skirt extending radially outward to limit upward expansion of the compensator element.

Bladder stress reducer cap

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Tulsa, OK, United States of America

Steven W Pyron