Optimizing impressed current cathodic protection (ICCP) anode sled locations for offshore jacket structure retrofits.

Presenter: Dr Matthew Taylor (Deepwater Corrosion Services, Inc.)

Synopsis:

Choosing anode sled locations is a critical step in the ICCP retrofit design process. Typically, a CP engineer locates sleds based on site plans, experience, intuition, and some simple equations evaluating “remoteness” criteria.
3D CP Multiphysics software (both BE and FE) models have been used to evaluate the performance of a given CP design.  These models, typically proprietary in construction and calibrated by historical structure polarization data give general indications of system performance, often ignoring the effects of ICCP on associated pipelines.  Any attempted optimization procedure involves “guess and check” techniques, with no method of validating the results.
Pipeline CP measurements made during and after ICCP system commissioning has revealed that pipelines were more affected than previously believed given the “remoteness” criteria traditionally used.
This talk describes algorithms and analysis to optimize the placement, quantity and output of anode sleds to improve system efficiency, minimize risk to pipelines and reduce cost.

About the Presenter

Dr Matthew Taylor is a corrosion engineer with a Ph.D. in Materials Science and Engineering from The Pennsylvania State University and INSA de Lyon.  Dr. Taylor applies corrosion science to offshore infrastructure world-wide, developing technologies and custom solutions to overcome a variety of challenging corrosion issues.  He has been studying diverse corrosion control technologies since 2005 and focused on the field of offshore corrosion and cathodic protection since 2012.  He currently resides in Houston, TX

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