Underdeposit corrosion (UDC) has been recognized by the oil and gas industry as a major threat to the integrity matrix of the production and transportation of oil and gas and has frequently been blamed for high corrosion rates and loss of containment during operations.
The content of this NACE International CorrCompilation: Underdeposit Corrosion covers a wide range of topics that were assembled to help the reader better understand and assess UDC threat, determine the corrosion mechanism(s) responsible for the UDC, and adopt the appropriate mitigation strategies to target the active corrosion mechanism(s). The topics include proper identification and characterization of the deposits encountered in oil and gas production and transportation systems; laboratory UDC testing methods to determine responsible UDC corrosion mechanism(s) and evaluate inhibitor performance; UDC threat assessment through modeling and prediction of solids transport and settling; Internal Corrosion Direct Assessment (ICDA) methods as a means to assess UDC threat; identifying and applying appropriate UDC preventive and mitigative strategies; and finally, case studies to elucidate real examples of how UDC was identified and managed.
2019 NACE E-Book
The “Field Guide for Managing Iron Sulfide (Black Powder) within Pipelines or Processing Equipment” offers practical guidance for corrosion control and operations personnel in managing black powder within their pipeline systems or processing equipment. It starts with a discussion of what is black powder and identifies health and safety considerations associated with H2S and the presence of black powder, identifying why there may be a concern. The Field Guide presents field and laboratory tests typically used to identify the presence of iron sulfide, and then discusses maintenance pigging and/or chemical treatments for removing such particulates. Several case studies are also presented.
2019 NACE E-Book
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