... and detachment of structures from the seafloor involve methods like diamond wire cutting, abrasive water jetting, hydraulic shears, or explosives, all of which carry the potential to harm organisms and habitats ( NOAA, 2017 ). Structures predominantly composed of steel, common in the oil and gas (O&G...

... for transporting hydrogen-natural gas blends, they are also vulnerable to leaks, embrittlement, and hydrogen-induced cracking, especially on newer high-strength steel (X70 or higher). This paper presents a new approach to preparing existing natural gas infrastructure for potential hydrogen-natural gas blends...

... applications, and what the benefits would be. oilfield chemistry corrosion inhibition h2s management artificial intelligence composition hydrogen corrosion management application strength icme boundary steel solidification in718 fraction integrated computational material engineering...

... produced of low-carbon microalloyed steels. Testing procedures Tensile testing of the material of the as-received pipes The longitudinal cylindrical specimens with a gauge diameter of 8.75mm were machined from the mid-wall of the as-received X60 and X65 grades seamless pipes with an outer...

... Abstract Hydrogen Embrittlement (HE) and Hydrogen Assisted Stress Cracking (HASC) are processes that detrimentally affect certain steels. These processes are understood and well documented. In recent years there has been an accumulation of product failures involving steel lifting components...

... calculations and project execution method presented in this paper can be a reference for sustainable practices in future floating or conventional wind energy projects. The study showed that floating concrete substructure carbon footprint may be considered lower than a floating steel substructure. The mooring...

... chain replacements may be required which are typically very costly. In addition to corrosion, some of the other performance factors for mooring chains include strength, wear resistance, toughness and fatigue resistance. Carbon steel is the conventional material currently employed for mooring chains...

... Abstract Corrosion in offshore well completions can lead to serious well integrity problems and costly workover operations. Although carbon steel is an ideal material for most completions, under certain conditions corrosion can attack and severely damage carbon steel equipment. Corrosion...

... Abstract In this study, carbon steel corrosion was evaluated in salt water solutions using the newly developed non-destructive electrical method which can be easily adopted in the field for real-time monitoring and the results were compared to some standard test methods such as weight loss...

... these efforts will be discussed and their positive impacts on HPHT materials qualification and testing will be summarized. qualification application standardization technology qualification hpht material steel knowledge hpht jip innovation upstream oil & gas offshore technology conference...

... Transmission Pipelines , PhD Dissertation Georgia Institute of Technology . ASTM A193/A193M ( 2016 ), " Standard Specification for Alloy-Steel and Stainless-Steel Bolting for High Temperature or High- Pressure Service and other Special Purpose Applications " ( West Conshohocken, PA : ASTM ). ASTM...

... is interconnected to Rota 3 in a loop. Figure 2 shows the general diagram of the Rota 3 pipeline. Table 1 summarizes the main characteristics of Rota 3. OTC-28965-MS 3 Figure 2 General diagram of Rota 3 offshore gas pipeline with its equipment Table 1 Rota 3 data Item Data Diameter 20-in and 24-in Steel Grade DNV...

... of the steel pipe have been practiced for several decades with varying results. The simplest and most effective has been to grit-blast the casing to remove mill varnish, as varnish highly hydrophobic and not conducive to cement bonding. Grit blasting also leaves the surface slightly roughened, which has been...

... Abstract We produce good quality, high strength, and sour resistant steel, but industry confidence in offshore welds to 65 Ksi and conservative codes lead to very thick pipes for all HPHT risers (SCR, Dry tree, drilling) and flowlines. Cumulative adverse effects of very thick and low D/t ratio...

... that can withstand minor unintended deviations to strict specifications. procedure tensile stress drillstring design upstream oil & gas critical flaw flange eac resistance corrosion inhibition mean stress service life corrosion management drill pipe selection h2s management steel...

... Abstract API Specification 5CT [ 1 ] and NACE MR0175 [ 2 ] and TM0177 [ 3 ] provide guidelines for the use of carbon steels with desired characteristics in oxygen-free environment containing H 2 S and CO 2 . TMK IPSCO has developed a range of suitable grades to meet such service requirements...

... presents further challenges due to the higher temperature of the injection point. While phosphate esters, phosphonates and polymers constitute the major types of scale inhibitors applied to control scale in oilfield applications, all are known to be corrosive to Low Alloy Steels (LAS). This paper...

... to the flexible during its lifetime. In order to select the most appropriate anti-abrasion material, a large scale bench test has been built to reproduce realistic flow in a piping system and compare wear on different materials; rubber, polyethylene and stainless steels. Complete analysis of the wear patterns...

...-alloying elements are generally added to the steels to control grain size, provide deoxidation, refine microstructures, give through hardening of thick cross-sections, and deliver solid solution strengthening. Material specifications include limits on the different alloying elements, and it is important...

... Pipes that experience sour service need to resist that corrosive environment. One method for achieving corrosion resistance is by lining the inside of the pipe with a corrosion resistant alloy (CRA), such as stainless steel or a nickel based alloy. This has the advantage of being much cheaper...