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 61
... technique and reporting on preliminary work . The technique is applicable to the leak testing of buried land pipelines and particularly to offshore pipelines . Nomenclature a acoustic velocity in liquid filled pipeline ( m / s ) . v ...
... technique and reporting on preliminary work . The technique is applicable to the leak testing of buried land pipelines and particularly to offshore pipelines . Nomenclature a acoustic velocity in liquid filled pipeline ( m / s ) . v ...
Page 63
... technique may be initially interpreted as a leak since pressure is dropping while acoustic velocity is rising and as such is not detrimental to the technique since it cannot mask a leak . at Air which is approximately 0.001 % of the ...
... technique may be initially interpreted as a leak since pressure is dropping while acoustic velocity is rising and as such is not detrimental to the technique since it cannot mask a leak . at Air which is approximately 0.001 % of the ...
Page 65
... technique . Ultrasonic velocity measurement techniques are capable of resolutions to better than 0.001 % . Such techniques are applicable to the low acoustic frequencies envisaged . velocity measurements are required over a period of ...
... technique . Ultrasonic velocity measurement techniques are capable of resolutions to better than 0.001 % . Such techniques are applicable to the low acoustic frequencies envisaged . velocity measurements are required over a period of ...
Contents
OFFSHORE MECHANICS | 3 |
Seabed Scour Under Pipelines | 33 |
Flow Around and Forces on a Pipeline Near a Scoured | 39 |
Copyright | |
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acoustic velocity analysis Arctic Engineering axial bending bottom clamp boundary layer buckling calculated clad pipes clamp elevation compression Conference on Offshore crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect electrode equation experimental Figure finite element finite element analysis flow force coefficients free span frequency friction function hoop stress hydrodynamic hydrodynamic forces in-line installation leak detection leak detection system length lift coefficient lift force line pipes liquid load maximum measured Mechanics and Arctic method monitoring nodal analysis Offshore Mechanics operating parameters phase pipe displacement pipeline pore predicted present pressure procedure ratio regular waves response riser roughness SCADA scour sea bed sea floor seabed shown simulated soil steady current strain strain gauges stress structural submarine pipelines surface technique temperature thickness tion two-phase flow values variation vertical vortex shedding weld metal