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Microbiologically influenced corrosion (MIC) is a key risk to oil and gas infrastructure and confers great cost to asset owners. The AMPP 2021 IMPACT Canada study, which analyzed the energy, manufacturing, and mining sectors, shows the cost of corrosion in Canada is roughly $51.9 billion per year. To break this down further, MIC is estimated to make up roughly 20% of all corrosion which is roughly $10.4 billion in Canada alone, each year.
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The suitability of valves in certain profiles for low-pressure pure and blended hydrogen gas service has been investigated. To achieve this, the existing standards, practices, design codes and regulations are reviewed in this paper and the input of natural gas operators, engineering companies, valve manufacturers and experts has been utilized.
The research and trials done by natural gas operators is starting to reveal that the effect of low-pressure hydrogen gas on valves is negligible and the risks involved due to hydrogen embrittlement were low.
Adhesion is a physical property that is crucial in many coatings, sealants, and adhesive applications, be it automotive, marine, or aerospace for example. Pull-off adhesion testing is an important tool in evaluating a coating’s performance, particularly while comparing pre- and post-exposure results. No matter what the application, the method for testing adhesion along with selecting the appropriate testing criteria has been the subject of multiple studies and reviews in the historical literature.
More and more High Pressure High Temperature (HPHT) sour wells are operated worldwide. Challenging material selection is required for such severe operating conditions.1,2 Very high strength materials, presenting yield strength above 896 MPa (130 ksi), are required for sustaining the pressure. Consequently, even a low amount of H2S in the gas phase may lead to a H2S partial pressure beyond the limit of 3.5 mbar (0.05 psi) established in NACE MR0175 / ISO 15156 standard.3 Indeed, both high yield strengths and partial pressures of H2S contribute to a situation where the risk of Sulfide Stress Cracking (SSC) is high. The present paper is focusing on the SSC resistance of 130 ksi minimum yield strength material developed for covering such HPHT applications.
South Ghawar Producing Department has exerted substantial efforts towards executing a seldom project of replacing numbers of extraordinary vessels. Those horizontal vessels were recommended for replacement due to major and excessive Step Wise Cracking, irregular blister and inclusions identified in several traps. These vessels are subject to Hydrogen Induced Cracking, known as HIC and this is mainly SGPD facilities were constructed on old time where SAES was not mandating to utilize HIC resistance material. In 2014, a company wide survey started and as a result 27 out of 121 were identified with HIC damage. To overcome these challenges, SGPD developed a robust action plan, which consists of two parts:● Long Term Plan which is replacing the impacted vessels with upgraded material “HIC resistance material”● Short Term Plan to continue the safe and reliable operation of impacted vessels until the vessels are replaced by managing and monitoring HIC growth.With the short and long term action plan, SGPD controlled HIC concern in affected vessels. But we didn’t want to stop here and we wanted to go the extra mile and add a proactive measure rather than only reactive. Therefore, we partnered with R&DC to implement a proactive initiative at SGPD as the first department in Saudi Aramco called Step-Wise Hydrogen Induced Cracking Toolkit which falls under IR.4.0.
Corrosion is responsible for the deterioration of steel structures over time. Thus, there are billions of dollars lost each year worldwide, due to leakage of materials transported in metallic pipelines, as well as the need for repair and replacement of materials. Cathodic protection is one of the main ways to minimize or even suspend the corrosive process, along with the application of protective coatings on metallic structures.
Fire is the biggest threat for the crews in aircraft, ships, submarines, and land vehicles. As a result of such threats there have been use of fire/flame retardants coatings increased exponentially to curb economic and social consequences of fire [1]. There are various types of coatings available to fight against the fire. Two classes of fire protection technologies are being used currently, 1) Fire retardant and 2) Fire resistant. Fire retardant coatings are passive fire protection coatings where such coatings can slow down the spread of the flames allowing more time for evacuation and firefighting. Fire resistant coatings typically inhibiting the flame penetration or do not ignite upon in contact with fire [2].
New methods for monitoring scale and corrosion inhibiting water treatment programs have been developed. These new patented methods utilize the measurement of system consumption of actives in the treatment program by fluorescence analysis.'-' The applied dosage of treatment program and the amount of actives available to the system are measured with inert fluorescent tracers added to the treatments.
System consumption of actives is defined as the difference between the amount of actives added and remaining in the system. 2,5- 7 Consumption measurements determine changes in the whole operating system (not a simulated, small portion of the system). Consumption measurements can also be made on individual portions of the system (heat exchangers). Changes in consumption of inhibitors and dispersants can .be related to changes in system operating conditions and performance. Reducing consumption of actives or maintaining consumption within a specified range can be related to optimization of the operation of the cooling system and treatment program.
The development of environmentally-friendly corrosion resistant coatings is one area of recent focus in the coatings industry. For example, the Department of Defense owns more than 460,000 facilities around the world and reports the annual cost of corrosion of around $800 million. The coatings used on these structures frequently rely on older polymeric coating systems that do not meet the current requirements for environmental/regulatory concerns.