What is the best practice of corrosion monitoring ?

why we need to conduct corrosion monitoring? Corrosion monitoring is an activity to check corrosion happened in an equipment. before we conduct a corrosion monitoring, we must understand the basic of corrosion and corrosion type. Corrosion is the destruction or degradation of a metal due to a redox reaction between a metal and various substances in the environment that produce undesirable compounds. The most common example of corrosion is iron corrosion. In the event of corrosion, the metal undergoes oxidation, while oxygen (air) is reduced. The metal rust is generally an oxide or carbonate. The chemical rust formula is Fe2O3.nH2O, a solid brown-red substance. Corrosion is an electrochemical process. it means we must understand an electrical side and chemical side. In iron corrosion, certain parts of the iron act as the anode, in which iron oxidizes. Fe(s) <–> Fe2+(aq) + 2e The freed electrons in the anode flow to another part[…]

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what is Stress corrosion cracking ?

Stress Corrosion cracking (SCC) this phenomenon can be defined as material cracking due to the combined effect of static stress and corrosion. The stress involved can be residual stress and actual stress from an external load. The corrosion that occurs is generally very localized. Localized corrosion on the surface of the material usually acts as a stress raiser or stress concentrator. This corrosive cracking can be either transgranular or intergranular cracking depending on the type of alloy, metallurgical and environmental conditions. there are 3 main causes that determine the occurrence of Stress Corrosion Cracking are: Tensile stress. This tensile stress can be a residual stress that occurs due to welding or metal forming and can be a real stress due to the workload received by the material. For example, a pipeline or pressure vessel that is operated with internal pressure. Temperature. In general, cases of Stress Corrosion Cracking occur at[…]

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oil and gas facilities pipeline material – API 5L PSL1

what is oil and gas facilities pipeline material? PSL 1 and PSL 2 oil and gas facilities pipeline material most used is carbon steel. The API – American Petroleum Institute makes a standard named Specification for Line Pipe – API 5L. Carbon steels are widely used in the oil and gas industry despite their corrosion resistance is limited. These materials are preferred to others because of economic considerations. The API 5L pipe steel is a low carbon steel, which is used for the fabrication of transmission pipelines. in general, there are 2 PSL ( product specification level ) ie PSL 1 and PSL 2. The development of technology for high strength pipeline steel such as X-80, X-100, and X-120 through thermo-mechanical process allowed a reduction in wall thickness and sometimes an improvement in corrosion resistance. However, the API 5L pipe is still susceptible to aqueous corrosion so inhibitor addition is[…]

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CMMS (asset management software) best practice for Scheduling in Oil and Gas Company

What is the CMMS best practice for scheduling? many people asking about CMMS best practice for scheduling in Oil and Gas Company.what are the difference between planning and scheduling? Planning is a set of Planner activities to prepare a job that will be conducted by a crew in a certain location. For example, a mechanic crew will conduct a boiler feed water pump overhaul in a Power Plant. In a planning phase, a planner will conduct some activities such as job assessment. is a boiler feed water pump overhaul need spare part? what are the spare parts? how many the spare part quantity? do we have the spare part in our warehouse? how many mechanic crew required to conduct a boiler feed water pump overhaul? do we need electrician crew to support the boiler feed water pump overhaul? do we need a heavy equipment like a crane to support the[…]

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