Material Overview for Electric Submersible Pumps:Part II-Polymeric and Other Materials

摘要

The electric submersible pump(ESP)is a key artificial lift technology in the petroleum industry.Worldwide installations of ESPs in oil wells are in the range of 130,000 units,contributing to about 60% of the total oil production in the world.An ESP is made up of hundreds of components integrated together to perform the lifting function.Materials in these components belong to several categories,including metals,ceramics,polymers,and others.A good understanding of these materials and vigilant selection for a specific application are critical to the reliability and run life of an ESP system.This series of articles provides an overview of all major classes of materials used in ESP systems.It is intended to serve as a reference for ESP field application engineers who are responsible for design,equipment longevity,and production optimization.This article focuses on polymeric and other materials.The information compiled in this article is the result of extensive literature review.It covers materials used in the motor,protector,pump,and cable(the sensor,packer,Y-tool,diverter valve,surface components of variable speed drives and transformer are not included).For each class of materials,it identifies relevant material properties and discusses suitable application conditions.