Baker Hughes, a Ge Compnay, LLC

Baker Hughes Corporation

Erik Bartscherer

Helmut G Benning

Sven Delden

Christian Fulda

Harald Grimmer

Thorsten Regener

Carsten Hohl

Witali Huber

Gunnar Michaelis

Dorothea Marion Fischer

Hendrik John

Andreas Krafczyk

A stator for a downhole motor configured for use in a downhole environment. includes an inner tubular member formed from a first metallic material having an outer surface and a helically lobed inner surface, and an outer tubular member comprising a second metallic material that is different from the first metallic material. The inner tubular member is connected to the outer tubular member by compressive force passing from the outer tubular member through the inner tubular member to a rigid mandrel removably disposed within the inner tubular member. The inner tubular member and the outer tubular member form the stator of the downhole motor.

Method of forming stators for downhole motors

A method of lining an inner surface of a tubular with a polymer, includes positioning a polymer injecting head within the tubular, forming an annular space between the injecting head and an inner surface of the tubular, injecting polymer through the injecting head into the annular space, and moving the polymer injecting head longitudinally relative to the tubular while injecting polymer.

Method of lining an inner surface of a tubular and system for doing same

A method of making a stator includes positioning an inner tubular member having an inner surface within an outer tubular member, installing a rigid mandrel within the inner tubular member, and applying a compressive force to at least one of the inner tubular member and the outer tubular member.

A composition including a high temperature thermoplastic polymer and a filler material is disclosed. A method for forming a coating upon a wellbore tool includes forming a powder composition comprising a thermoplastic polymer and a filler material and applying the composition on the body surface. Wellbore tools having components coated with such compositions are also disclosed.

Methods of forming coatings upon wellbore tools

Growing community of inventors

Saarbrücken, Germany

Erik Bartscherer