Download PDF by Torben Lund Skovhus, Dennis Enning, Jason S. Lee: Microbiologically influenced corrosion in the upstream oil

By Torben Lund Skovhus, Dennis Enning, Jason S. Lee

ISBN-10: 1498726569

ISBN-13: 9781498726566

Microorganisms are ubiquitously found in petroleum reservoirs and the amenities that produce them. Pipelines, vessels, and different apparatus utilized in upstream oil and gasoline operations offer an unlimited and predominantly anoxic atmosphere for microorganisms to thrive. the most important technical problem due to microbial job in those engineered environments is the impression on fabrics integrity. Oilfield microorganisms can have an effect on fabrics integrity profoundly via a large number of elusive (bio)chemical mechanisms, jointly often called microbiologically inspired corrosion (MIC). MIC is expected to account for 20 to 30% of all corrosion-related bills within the oil and gasoline industry.

This e-book is meant as a finished reference for integrity engineers, creation chemists, oilfield microbiologists, and scientists operating within the box of petroleum microbiology or corrosion. Exhaustively researched by way of leaders from either and academia, this booklet discusses the newest technological and medical advances in addition to proper case experiences to exhibit to readers an figuring out of MIC and its powerful administration.

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The differences are a result of significant changes in ERW seam welding practices; postweld seam heat treatment; and development and application of control-rolled, microalloyed steels. The modern pipe generally has a much lower impurity content, improved microstructure, and better toughness and resistance to selective seam corrosion. While improved metallurgical process control during manufacturing can reduce alloy impurity content and improve mechanical properties, it can also inadvertently result in reduced corrosion resistance.

Metallurgy is an important consideration in both the design phase and in the operations phase of oil and gas asset life. In the design phase, engineers consider corrosion threats, including microbiologically influenced corrosion (MIC), and weigh the lifecycle costs of using carbon steel with chemical treatment (with lower capital expense [CAPEX] and higher operating expense [OPEX]) or corrosion-resistant alloys (CRAs) with higher CAPEX and lower OPEX. CRAs offer many advantages in corrosion resistance as compared to carbon steels; however, they are also susceptible to localized corrosion or cracking mechanisms under specific physiochemical conditions.

31 shows moss growing at seams in the insulation jacketing of a crude oil loading line. The moisture that allowed this moss to grow also led to extensive CUI at the loading platform (Heidersbach 2012). • NACE SP0198 provides guidelines on how to limit CUI (NACE 2010). • Oxygen attack: This often refers to pitting corrosion due to air ingress into topside equipment. • Sweet corrosion: This is a term that is becoming outdated. It refers to corrosion in environments where the corrosion is due to the presence of dissolved CO2.

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Microbiologically influenced corrosion in the upstream oil and gas industry by Torben Lund Skovhus, Dennis Enning, Jason S. Lee


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