... to the Turkish gas-transportation network via the Black Sea, as shown in Fig. 1. The system currently has an annual capacity to transport 31.5 bcm of natural gas over approximately 940 km. The line pipe is longitudinally welded with a nominal outer diameter ( D ) of 813.0 mm (i.e., 32 inches) and wall thickness...

... a very thick wall to cope with such, hostile environment. This means that D / t , the diameter-to-wall-thickness ratio, must be low. The analytical limit-state equations included in DNV-ST-F101, a prevailing design standard for submarine pipeline systems, do not work well for pipe with extremely thick...

... pipeline thickness external pressure upstream oil & gas propagation finite element method equation design pressure external pressure collapse midstream oil & gas offshore pipeline wall thickness fe simulation result propagation buckling modeling & simulation submarine...

... element method. The results show that traditional jacket structure doesn't meet the requirements of the specification. The wall thicknesses of pile legs need to be increased to improve the ice-resist performance of the jacket structure. The results show that the ice-resist performance can be improved...

... verification, linepipe material selection, manufacturing quality control, advanced construction quality surveillance and "dry" pre-commissioning of the installed pipeline. midstream oil & gas wall thickness operation pipeline design excursion application hydrotest waiver offshore pipeline...

... Line Pipes in the range of diameters between 18" and 28" and wall thickness up to 40 mm, to demonstrate their suitability for sour service, offshore and low temperature applications. In particular, Sulphide Stress Corrosion Cracking resistance was explored by Four Point Bending Tests in environments...

... to calculate mean pipeline embedment. midstream oil & gas correlation upstream oil & gas submerged weight regression algorithm local polynomial regression dimension prediction classification algorithm predictor machine learning wall thickness algorithm curvature statistical model...

... ABSTRACT The paper examines the effects of, corrosion induced, wall-thinning on buckling of torispherical, hemispherical and ellipsoidal domed closures. It is assumed that the wall is corroded on outside, only. The ratio of corroded wall thickness, t c , to non-corroded thickness, t, is varied...

... joint thickness hot spot stress nominal stress renewable energy solid element welding seam load condition wall thickness wind energy offshore projects planning and execution offshore wind turbine diameter subsea system Study on SCFs of the Tower-Foundation Joints in Jacket Base Offshore...

... of the pipe. The residual stress was then measured during the manufacture of the flaw and was compared with the FE prediction. Ultrasonic measurements were then carried out on the outer surface of the pipe to provide the residual stress and the wall thickness. This ultrasonic sensor can therefore monitor...

... or inner diameter or wall thickness, respectively. Thus, the geometry of the tube section can be adapted to the stress distribution without the need of butt welding. It is figured out that with using shaped pipes, the framework can be optimized and the total weight of the structure can be reduced...

... to wall thickness of 40 mm. This presented steel grade is already qualified according to DNV GL for toughness class F (- 60 °C), grade VL FO690QT. The new steel grade is based on a micro-alloyed low carbon concept, comprising a maximum carbon content of 0.08 wt.-% and a maximum CE IIW of 0.57 wt.-% (Pcm...

... are summarized. fatigue characteristic ool length assessment subsea system ool fatigue life calm buoy fatigue damage west africa pipeline wall thickness upstream oil & gas floating production system characteristic fpso buoy unit displacement wind sea exposure time buoy stress...

... offers higher strength than SS (as noted in Table 1), which can potentially allow smaller wall thicknesses. The reduced volumes can also result in reduced material and fabrication costs. HMS has lower CTE than SS (as noted in Table 1), which has the potential to simplify particular aspects...

... loading can have a significant influence on the strain capacity of girth welds. The major effect of biaxial loading is an increase in the crack driving force. In comparison, the materials resistance to fracture appears to be similar under uniaxial and biaxial loading. wall thickness prediction...

... upstream oil & gas metals & mining hardness investigation super oceanfit 100 construction microstructure requirement steel longitudinal drilling equipment test temperature pipe test direction wall thickness application impact energy steel grade seamless pipe strength...

..., and full-scale testing (FST) to measure pipe strain capacity. tsc piping design proc piping simulation offshore exxonmobil hilo misalignment misalignment fairchild equation flaw size prediction overmatch pipeline benchmark case wall thickness flaw height weld strength overmatch...

.... The combined effect of the ovality and the wall thickness to outside diameter ratio (t/D) on the collapse pressure is derived from finite element analysis and the prediction formula constructed by DNV and Tamano. This study provides a reliable and beneficial solution for line pipe design in deepwater using R...

..., we assume wall thickness is a ratio to the diameter of members by taking only basic mechanics property into consideration. Here, constants are mainly used in deterministic analysis. For a proposed wind farm, types of OWT, hub height and top diameter of tower are determined by field conditions...

... of the proposed approach. Between them they cover the more popular failure prediction equations. Codified deterministic methods use unfavourable data; e.g. maximum corrosion depth, maximum corrosion rate, maximum design pressure and minimum wall thickness without allowing for uncertainties (Amirat et al, 2006...