Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 5-6; Volume 8, Parts 5-6American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 126
... length Le of 53.4m at which the rockdumps first interact with the slipping lengths adjacent to the buckle . Figure 11 compares the effects of rockdumps and rigid restraints at three different spacings D , against the baseline case D ...
... length Le of 53.4m at which the rockdumps first interact with the slipping lengths adjacent to the buckle . Figure 11 compares the effects of rockdumps and rigid restraints at three different spacings D , against the baseline case D ...
Page 93
... length [ m ] Figure 2 : Static force at the lower end of the umbilical as a function of umbilical length for different upper end positions , depth 400 m and current speed 0.4 m / s . Z ( m ) 10 430 m -50 -100 -200 Water -300 -400 Z [ m ] ...
... length [ m ] Figure 2 : Static force at the lower end of the umbilical as a function of umbilical length for different upper end positions , depth 400 m and current speed 0.4 m / s . Z ( m ) 10 430 m -50 -100 -200 Water -300 -400 Z [ m ] ...
Page 94
... length of 470 m . BUOYED UMBILICAL CONFIGURATIONS In order to improve the dynamic performance of the ROV sys- tem ... length along the umbilical from the lower end to the buoyancy , FB = net buoyancy force , and w = weight in water of a ...
... length of 470 m . BUOYED UMBILICAL CONFIGURATIONS In order to improve the dynamic performance of the ROV sys- tem ... length along the umbilical from the lower end to the buoyancy , FB = net buoyancy force , and w = weight in water of a ...
Contents
PIPELINE DESIGN AND OPERATIONS | 1 |
PIPELINE INDUSTRY OUTLOOK 89 | 69 |
PIPELINE FORCES DYNAMICS AND STABILITY I | 95 |
Copyright | |
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amplitude analysis applied Arctic Engineering axial base metal bending Buckle length buckling bundle calculated coefficient compressor Conference on Offshore corrosion crack curvature deformation developed diameter displacement ductile effect Eighth International Conference electrodes equation explosive welding failure flaw flow rate gas turbine geometry heat horizontal hydrodynamic hydrodynamic forces hydrogen inertial installation laboratory length lift force line pipe liquid load maximum measured Mechanics and Arctic meters method monitoring natural burial Offshore Mechanics Offshore Technology Conference operation parameters predicted present pressure problem procedure ratio reheated reliability repair resistance response rockdumps sand SAW metal scour depth seabed shown in Figure simulation Snøhvit soft zone soil Sørøya sour gas span Statoil steel stress structural submarine pipelines submerged arc welding Sumer surface Table Technology temperature tion tool trench velocity vertical vibration viscometer viscosity vortex vortex shedding wave