... and propagation. In this case hydrogen diffusion enhanced by straining is expected to promote hydrogen trapping at dislocations, precipitates and other defects in the bulk or at GB, and the amount of hydrogen pre-charging plays a role. Abstract After a number of failures in the Oil and Gas industry research...

... in the light of current knowledge on HSC for subsea fastener applications. Hydrogen Stress Cracking nickel alloys PH nickel alloys Oil and Gas cold work INTRODUCTION Bolted connections for subsea flanges and other components must be reliable as they are often used for pressure containing components...

...-17 3.0-4.5 - - 4-7 UNS N06690 58 min. 27-31 - - - - 7-11 Abstract Precipitation hardened (PH) nickel alloy UNS N07725 used in oil and gas subsea service have experienced several brittle fractures linked to hydrogen embrittlement (HE). The alloy’s susceptibility to cracking...

...Abstract Low Alloy steels (LASs) are, by volume, the most widely used alloy family in critical oil & gas (O&G) components. However, the strength and hardness of LASs for sour environments are limited to prevent different forms of hydrogen embrittlement, such as hydrogen stress cracking...

...When choosing a biocide, it is well understood that microbial fouling in oil and gas stimulation causes a multitude of problems, including formation plugging, H₂S exposure, microbial induced corrosion, and well souring, all of which have deleterious effects on well production and quality...

... calculation. corrosion prediction top of line TLC oil and gas carbon steel pipelines INTRODUCTION Top of line corrosion (TLC) is known as one of the main corrosion threats in wet gas pipelines operating in stratified flow conditions. Using a corrosion model is one of the key tools to identify...

...Abstract The exploitation of unconventional reserves is pushing the limits of the materials selected in the oil and gas (O&G) industry. Precipitation hardened nickel alloys (PHNAs) such as UNS N07725 are typically used in applications that require high strength levels, corrosion...

... Abstract Low alloy steels (LASs) combine relatively low cost with exceptional mechanical properties, making LASs commonplace in Oil and Gas equipment. However, the strength and hardness of LASs for sour environments and for applications that generate atomic hydrogen at the surface, e.g., cathodic...

... of residual hydrogen and the swaging operation. super duplex stainless steel hydrogen embrittlement hydrogen induced stress cracking environmentally assisted cracking oil and gas subsea swaging microscopy mechanical testing INTRODUCTION DSS and SDSS have been shown to be particularly susceptible...

... Oil and Gas INTRODUCTION Threaded fasteners, and all types of bolts, are the most economical way to join an infinite variety of parts together to create useful objects, such as machinery, automobiles, airplanes, buildings, pipelines, etc., the numerous advantages of using threaded fasteners include...

...Microbes, specifically in the form of biofilms, are a pervasive threat in the oil and gas industry and often result in microbiologically influenced corrosion (MIC). ^{1 - 3} MIC clogs up pipelines, increases power consumption and results in equipment corrosion in water injection pipelines...

... Abstract A comprehensive corrosion prediction model for multiphase oil and gas production and transmission systems was enhanced by incorporating a Top-of-Line corrosion capabilities. Key issues in development of the enhancements are discussed, including evaluation of an improved flow model implemented...

.... An economic analysis is then performed to include all elements for corrosion costs. The process is repeated for scenarios with better corrosion control and the optimal LCC strategy is proposed by comparison of various scenarios. LCC corrosion costing oil and gas biocide corrosion control INTRODUCTION Oil...

... a critical role in the exploitation of low permeability oil and gas formations via hydraulic fracturing by protecting the integrity of fracturing fluids and preventing the souring of the wells. Traditionally, biocide selection for a well is determined though a limited battery of tests used to evaluate...

...Abstract There are two major groups of biocides used in the oil and gas industry to prevent souring, formation plugging, and microbiologically influenced corrosion: oxidizers and non-oxidizers. Oxidizing biocides include chlorine and bromine based biocides, ozone, and peracetic acid, among others...

... associated impacts on Canadian coatings applicators and the coating supply chain in general. protective coatings pipeline corrosion Canada oil and gas FBE liquid epoxies INTRODUCTION Protective coatings are one of the main defensive mechanisms for pipelines against corrosion. External coats...

... a wide amount of stainless steel components for oil & gas exploitation. Stress corrosion cracking under evaporative conditions is also a major concern in oil & gas production, storage, and processing. An innovative test method was used for evaluation of welded UNS S32202 susceptibility...

.... Case A: Subsea seawater injection pipeline rupture and subsequent actions¹³ Abstract Historically, assessment of Microbiologically Influenced Corrosion (MIC) in the oil and gas industry has focused on sulfate-reducing bacteria (SRB) using...

.... However, the limited knowledge of the thermodynamic and kinetic properties of mineral systems under high pressure (24,000 psia), high temperature, 250°C (482 °F) and high TDS (360,000 mg/L) has presented a huge challenge in ultra deepwater oil and gas production. The lack of data and models for scale...

...Abstract A model was previously developed to predict internal pitting corrosion of oil and gas pipelines. The model considers the influence of temperature, total pressure, H₂S partial pressure, CO₂ partial pressure, the concentrations of sulphide, bicarbonate and chloride...