Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 450
... winch remains on the surface vessel . In this con- greater water depths method presents serious problems especially with tool respect to heave compensation and trol . New systems have therefore been deve- loped with the wireline winch ...
... winch remains on the surface vessel . In this con- greater water depths method presents serious problems especially with tool respect to heave compensation and trol . New systems have therefore been deve- loped with the wireline winch ...
Page 451
... winch is enclosed in a pressure tight chamber and is exposed to well pressure . Thus there is no need of a stuffing box and therefore no danger of gas leakage . For tool changes the riser / lubrica- tor and winch chamber is purged of ...
... winch is enclosed in a pressure tight chamber and is exposed to well pressure . Thus there is no need of a stuffing box and therefore no danger of gas leakage . For tool changes the riser / lubrica- tor and winch chamber is purged of ...
Page 542
... winch at the shore which was used to adjust the slack in the cable . Cross - flow cable motions were measured at three locations with accelerometers ; one at the support point , one 0.3048 meters in - span from the support point , and ...
... winch at the shore which was used to adjust the slack in the cable . Cross - flow cable motions were measured at three locations with accelerometers ; one at the support point , one 0.3048 meters in - span from the support point , and ...
Contents
VORTEX SHEDDING AND VIBRATION | 187 |
OCEAN WAVES AND CURRENT | 209 |
COMPUTATIONAL METHODS | 247 |
Copyright | |
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added mass amplitude analysis approximately average body boundary condition cable calculated circular cylinder components computed correlation density diffraction displacement distribution drag coefficient dynamic effects Ekofisk Engineering experimental field Figure finite element floating flow fluid free surface frequency domain function Green function horizontal hydrodynamic hydrodynamic forces incident wave integral equation irregular waves length lift force linear load low-frequency matrix maximum measured method mode mode shapes mooring motion natural frequency nonlinear obtained Ocean Offshore Structures OMAE open boundary oscillation parameters phase velocity platform predicted present pressure problem random waves ratio response Reynolds number riser Sarpkaya seabed second-order ship simulation small forward solitary wave solution spectral spectrum stiffness surge tank tanker tension tether theory transverse values vector velocity potential vertical vessel vibration vortex vortices water depth wave drift damping wave forces wave height wave profile