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Even Faster Effective Area Method: Further Optimization of the Effective Area Method for Plausible Profile Corrosion Assessments

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Even Faster RSTRENG: Further Optimization of the Effective Area Method for Plausible Profile Corrosion Assessments Tristan MacLeod Kiefner and Associates, Inc., Ames, USA Introduced in 1990, the Effective Area Method (EAM) established the standard for estimating the remaining strength of corroded pipelines using detailed depth profiles (“river bottom” profiles [RBP]). While using the EAM is computationally […]

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A Comparative Methodology for the POE Assessment of Corrosion vs Cracking

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A Comparative Methodology A Comparative Methodology for the POE Assessment of Corrosion vs Cracking Lucinda SmartKiefner and Associates, Inc., Ames, USA The probability of exceedance (POE) method refers to the likelihood that a defect exceeds a specific limit or threshold, such as pressure or depth. This concept is essential in risk-based pipeline management, as it

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Engineering Assessment of Dents Without Dent Profiles: Prioritizing Resources and Leveraging Existing Data

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Engineering Assessment of Dents without Dent Profiles: Prioritizing Resources and Leveraging Existing Data Zahra Lotfian, PhD, PE Senior Engineer, Kiefner and Associates, Inc. Houston, Texas [email protected] Noraswad Mohamad Daud Lead Engineer, Saudi Aramco Abqaiq, Saudi Arabia [email protected] Dent integrity assessments typically rely on high-resolution dent profile data to estimate strain levels and assess fatigue life.

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What Can You Do with an Abundance of ILI Validation Data?

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What Can You Do with an Abundance of ILI Validation Data? Lucinda Smart, Benjamin Wright Kiefner and Associates, Inc., Ames, USA The concept of in-line inspection (ILI) tool validation could be succinctly summarized as follows: identify dig locations based on ILI reported features, measure these features in the ditch, compare in-ditch results with ILI predictions,

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Remaining Life Assessment of Hydrogen Pipelines for Flaw Sizes Below ILI and NDE Detection Limits

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Remaining Life Assessment of Hydrogen Pipelines for Flaw Sizes Below ILI and NDE Detection Limits Zahra Lotifan, Michiel Brongers  Kiefner and Associates, Inc., Houston, USA. Kiefner and Associates, Inc., Columbus, USA. While pressure cycle fatigue may not typically be a significant concern in conventional gas pipelines, introducing hydrogen changes the dynamic. This makes pressure cycle

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Considerations for Pipeline Safety and Siting

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Pipeline Report for the State of Colorado: Considerations for Pipeline Safety and Siting Kiefner and Associates, Inc. worked on a pipeline study with input from Colorado Energy and Carbon Management Commission (ECMC) and Public Utilities Commission (PUC) to address pipeline safety, regulatory gaps, and recommendations for improving oversight and coordination in Colorado. The study involved

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MEGA Problem?

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Mega Problem? We’d like to think we are cheaper than PHMSA fines! The new “Mega Rule” can be complex and challenging to navigate. Kiefner can provide you with straightforward answers to complex questions or audit your programs for compliance. We offer practical services for gas and hazardous liquid pipes: MAOP reconfirmation MAOP establishment for Type

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Stress Analysis

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Stress Analysis Stress analysis is a process found in virtually all industries.  Exceeding a material stress capacity can directly impact the public’s safety and the environment’s quality when a material failure occurs. Through stress analysis, we can secure the integrity of structures, from bridges and office buildings to pipeline systems, by evaluating the stresses a

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Investigate Pipeline and Equipment Failures

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Investigating Pipeline and Equipment Failures Are you searching for a trusted service provider to investigate pipeline and equipment failures? Do you need traceable, verifiable, and complete (TVC) materials records per 49 CFR 192.607? Kiefner has a state-of-the-art materials analysis laboratory capable of extensive mechanical, metallographic, and corrosion testing for the oil & gas and process

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PHMSA Research Announcement

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PHMSA Research Announcement Kiefner and Associates, Inc. (Columbus, Ohio) is honored to announce its recent 3-year, $1.5MM USD project award under PHMSA Research Announcement # 693JK323RA0001. This significant recognition comes after a rigorous selection process where we were evaluated against several esteemed competitors in pipeline integrity engineering. Kiefner’s President, Mr. L Trae J. Miller III, ESQ,

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