Down The Hole Without a Paddle

Corrosion Mitigation of Wellhead Surface Casings Using IMM Coatings

From JPCL, July 2020

By Nicole de Varennes, P.L. (Eng.), IRISNDT Ltd; Mike O’Donoghue, PhD, and Vijay Datta, MS, International Paint LLC; and Norm Spence, Spence Corrosion Ltd.

A key component of oil and gas wells are the wellheads, which provide both the structural and pressure-containing interfaces for drilling and production equipment. Most corrosion mitigation procedures for wellhead surface casings have been met with limited success, but in the past five years, an idea that originated from the proven performance of a novel high-temperature inert multi-polymeric matrix (IMM) coating for mitigating corrosion under insulation has changed this picture dramatically. The authors explain this coating technology, which many oil producers have successfully trialed and adopted for existing wellhead surface casings. ...

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