Mitigating Downhole Corrosion and Wear Failures Technical Paper

Understanding and Mitigating Downhole Corrosion and Wear Failures


A discussion on different types of corrosion and wear (and their associated mechanisms) followed by an overview of commercially available mitigation techniques, including their practical downhole applications are the focal points of this paper. Commonly accepted practices and myths about downhole corrosion and wear mechanisms, and the importance of using preferred life extension procedures and products to maximize the Mean Time Between Failures (MTBF) by solving the root cause(s) of downhole failures are also included. Available techniques used to determine root causes for downhole failures will also be reviewed.

Finally, this paper includes an overview of some useful material selection guidelines for metallic and nonmetallic materials, chemical treatments, mechanical methods, liners and coatings that are currently used downhole, focusing on the advantages and limitations of each approach.

The primary objective of this paper is to assist subsurface, completion, production, artificial lift and enhanced recovery engineers in understanding and avoiding expensive downhole corrosion and wear failures cost effectively.

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