... Hydrogen Pipelines: Saipem Testing Welds in Hydrogen gas Daniele Scarsciafratte, Angelo Santicchia, Salvatore Terracina, Enrico Torselletti, Elvira Aloigi, Giorgio Arcangeletti Saipem S.p.A. Fano, Italy Luigi Francesco Di Vito, Francesco Iob, Andrea Fonzo RINA Consulting - CSM S.p.A. Rome, Italy ABSTRACT...

... corrosion management geologist hydraulic fracturing piping simulation h2s management production chemistry piping design material reservoir geomechanics weld geological subdiscipline hydrogen geology oilfield chemistry corrosion inhibition haz mpa hydrogen gaseous hydrogen...

.... MICROSTRUCTURE AND HARDNESS OF DSAW WELD JOINT Experimental Procedures Large diameter linepipe is usually produced by cold forming of steel plate to a round shape and welding the plate edges. Since the initial microstructure of the plate is significantly changed by the weld heat input, ASME B31.12 requires...

... ABSTRACT Laser-welded sandwich plates have been used in real ships abroad, and the strength characteristics of their connecting members are one of the key issues of concern to designers. In this paper, the modeling methods of Tie connection and shell-to-solid connection are adopted to analyze...

... parks to shore) and high-pressure deepwater transmission pipelines (e.g., shipping hydrogen between supply and demand locations for green energy). To qualify the linepipe and welds for an offshore hydrogen project, a project specific material testing program would be imperative. INTRODUCTION...

... to be developed. The Weld Fatigue Enhancer (WFE), a physical device, was jointly developed by ExxonMobil, Balmoral and Stress Engineering Services, Inc. with the goal of improving riser fatigue performance. A patent for this device has been recently granted by US government (Wang, H et al, 2018...

... ABSTRACT Steel circular hollow sections (tubes - pipes) can be applied for many applications, structural as well as in pipelines. Important failure modes are local buckling, severe ovalisation (flattening of the cross section) or rupture of the tube wall at local buckles or welds. Within...

... ABSTRACT The girth weld of SCR riser is easy to occur fatigue failure than the base material in complex marine environments, so it is necessary to research it separately. In this paper, we provide the details of time-domain loads at girth weld on SCR riser, then analysis the fatigue life...

... midstream oil & gas china government upstream oil & gas h2s management production chemistry oilfield chemistry steel mining offshore pipeline metals & mining clad pipe requirement weld corrosion management asia government pipe corrosion inhibition steel pipe...

... ABSTRACT Fracture and fatigue testing was performed on the parent and weld material of a vintage offshore API 5L X60 pipeline to assess the impact of various pressures of H 2 . Fracture toughness values of samples exposed to H 2 environment were lower than in air. Fatigue performance...

... ABSTRACT Pipe ends machining (counter-bore) is one of the practical approaches for improving the fatigue performance of a welding pipe. This approach makes the pipe end dimension within the range of the target internal diameter (ID) and wall thickness (WT), in order to reduce the ID stress...

... specimen evaluation wet welding fatigue testing fatigue strength artificial intelligence welding weld weld quality test data steel probability different water depth background document water depth imperfection category detail category smaw fillet welded non-load-carrying...

... ABSTRACT With the massive development and utilization of offshore wind energy, offshore wind turbine has become an important marine engineering structure. In the process of construction, due to the limitation of working environment and welding process, the welded parts of the pipe wall...

... test string pipe weld offshore pipeline proceedings engineering upstream oil & gas liner girth weld eigenvalue analysis variation artificial intelligence anomaly imperfection triple point cross-section steel host pipe artic engineering polar engineering conference...

... Abstract The fatigue life of welded structures is typically limited by the fatigue resistance of individual weld joints. Numerous weld fatigue improvement methods have been adopted by fabricators to give extended life to fatigue sensitive structures. These improvement methods are often applied...

... Abstract In order to ease processing Vallourec developed a new low carbon alloying concept for seamless pipes which reduces the sensitiveness of hardness cracks and increase the procedure-related welding security. This leads on the one hand to a wider range of welding parameters...

... of corrosion resistant alloy (CRA) such as 316L, 625, 825 or 904L. Bi-metallic pipe joints are girth-welded together to make a subsea pipeline with nickel-based consumables which often undermatch the parent metal at yield. Such pipelines are often installed with the reel-lay method which is very efficient...

... and pipe can provide good toughness performance at these temperature extremes. However, limited work has been carried out to assess weld performance for such low temperatures other than by Charpy V-notch (CVN) impact tests. While there are commercially available weld consumables suitable for low...

... ABSTRACT The purpose of this study is to develop a simulation method to predict tensile strain limit for leakage from flaws in girth welds of high-pressure pipe. The material properties of each area in welds are measured by experiments using small size specimen. Ductile crack growth simulation...

..., 2013). A detailed study was carried out on a pipe specimen made from ferritic steel API 5L X52. residual stress measurement groove depth wall thickness amplitude upstream oil & gas probe weld hoop residual stress lcr wave ultrasonic measurement wcl machining pipe coating...