Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 179
... wall thickness and high strength line pipes have been required for higher operating pressure to increase transportation efficiency . Increasing the strength of line pipes has been required from the economical point of view as well ...
... wall thickness and high strength line pipes have been required for higher operating pressure to increase transportation efficiency . Increasing the strength of line pipes has been required from the economical point of view as well ...
Page 241
... wall pipes of more than 20 mm in thickness , the efficiency of the combined use was higher by 40 % or over than that of the conventional vertical upward low hydrogen electrode welding and by 15 % or over than that of the high cellulose ...
... wall pipes of more than 20 mm in thickness , the efficiency of the combined use was higher by 40 % or over than that of the conventional vertical upward low hydrogen electrode welding and by 15 % or over than that of the high cellulose ...
Page 272
... Wall Thickness The flexural rigidity of riser increases with riser wall thickness . The minimum wall thickness of the four example risers , as shown in Table 2 , is increased by a certain amount to study the effect of increased wall ...
... Wall Thickness The flexural rigidity of riser increases with riser wall thickness . The minimum wall thickness of the four example risers , as shown in Table 2 , is increased by a certain amount to study the effect of increased wall ...
Contents
Model Tests | 3 |
B Bryndum V Jacobsen and D T Tsahalis 9 | 21 |
Scour Under Pipelines | 33 |
Copyright | |
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acoustic velocity analysis Arctic Engineering axial behaviour bending bottom boundary layer buckling cable calculated clamp Cobia compression corrosion crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect elastic equation experimental field Figure finite element flow force coefficients free span frequency friction friction welding function hoop stress horizontal Hydraulic hydrodynamic hydrodynamic forces in-line installation irregular waves length lift coefficient lift force liquid load maximum measured mechanical method monitoring movement nodal analysis operating parameters phase pipe displacement pipe material pipeline predicted pressure procedure ratio response riser roughness SCADA scour sea bed sea floor seabed shown simulated slug soil steady current steel storm strain strain gauges stress structural submarine pipelines surface Technology temperature tion Turning Bands underwater values variation vertical vortex shedding water depth welding zone