• Central Daylight Time
    November 1, 2022
    9:00 am - 11:00 am
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Christopher Kagarise and Susmitha Kotu will present “What Should I Know About Microbiologically Influenced Corrosion?” on November 1, 2022

Course Description

This 2 hour course will provide the basics of microbioloigically influenced corrosion (MIC), how to collect samples to identify and manage MIC.

Course Outline

Basics of MIC: Why is this an important corrosion threat to consider?

  • Where it is found; internal and external corrosion of pipelines
  • Why it occurs; the role of microorganisms
  • Integrity concerns: Unpredictable and high localized corrosion rates

How to Identify the Threat of MIC

  • Four types of information needed to assess the potential for MIC
  • Tools and methods used to collect the information
  • Factors that promote the occurrence of MIC

Sample Collection and Preservation

  • What samples should be collected?
  • Sampling Fundamentals
  • Sample collection for different sample types
  • Sample preservation and shipment methods

Tools and Strategies for Managing MIC

  • The main methods of pipeline corrosion mitigation: cleaning/pigging, chemical treatment, materials and design
  • How to apply mitigation and monitor the effectiveness
  • Common mistakes to avoid


  • Certificate of Completion awarding 2 PDHs
  • Course notes delivered electronically

Christopher Kagarise, Senior Engineer, DNV
Susmitha Kotu, Corrosion Management, DNV

Instructors’ Bio

Dr.  Christopher Kagarise is a Senior Engineer in the Corrosion Management group at DNV in Dublin, Ohio. Much of his work is directed toward helping oil and gas operators improve the management of internal corrosion in their pipelines and facilities’ piping. His work has included reviewing and developing internal corrosion management programs, performing corrosion monitoring using extended analysis coupons, developing methods to characterize corrosion on coupons using 3-dimensional surface profilometry, and evaluating the effects of biocides on biofilms. Prior to joining DNV  he obtained a bachelor’s degree in Chemical Engineering from the University of Toledo and a Ph.D. in Chemical Engineering from The Ohio State University with a research focus on the effects of nanoparticles on the flow behaviors of various polymers and fluids.

Dr. Susmitha Purnima Kotu is an engineer in the corrosion management group with expertise in microbiologically influenced corrosion (MIC) at DNV in Columbus OH, USA. Dr. Kotu received her Ph.D. in Chemical Engineering along with Safety Engineering certification from Texas A&M University. Before joining DNV, Dr. Kotu worked as an intern in the corrosion labs at ExxonMobil Upstream Research Company and Baker Hughes, a GE company. In her current role, she supports internal corrosion projects with a focus on MIC and microbiology services including MIC threat assessments and biocide screening and optimization. She has published several peer-reviewed journal articles and was awarded a patent in the field of MIC. She has also instructed a course on “Introduction to MIC” at Appalachian Underground Short Course in May 2019 and was an invited speaker for Corrosion and Materials Reliability Symposium organized by NACE Texas A&M University student section in Oct 2019. She serves as a reviewer for scientific articles published in several international journals and NACE CORROSION symposia.


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