... challenges to address Ultra Deep Water developments. conventional lazy wave configuration service life flexible pipe armour wire offshore technology conference riser water depth riser section tensile armour wire portfolio bottom riser section upstream oil & gas riser configuration...

... vibration in a pipelinespan, a jumper and a riser section. The methodology is implemented in userdefined subroutines and functions in CFD and FEA software usingthree-dimensional Computational Fluid Dynamics of multiphase flow and transientnonlinear Computational Structural Dynamics. This technique...

... and their strength properties are improved by heat treatment. Alloy No. 3 may find its application in the riser design only when the threaded couplings of riser sections are provided. Alloy No. 2 is suitable for fusion welding. The strength of weldments ranging from 80 to 85% of the base metal strength is attained...

...-riser configuration allows for large vessel motions in typical harsh environments. Motion components parallel with the upper riser section will be transferred almost undamped to the corner, and set up transverse oscillations that are damped out in the lower section. The 90 degree corner gives the upper...

..., a pre-installed riser section is selected. This eliminates the need for costly offshore installation of the riser sections and allows for connection of the riser by proven methods of diver assisted tie-in spool installation, or in the case of deeper water, diverless tie-in spool installation methods...

... hydrodynamic aspect coefficient equation otc 6438 van den boom flexible riser riser section fluid force simulation displacement cylinder formulation offshore technology conference inertia upstream oil & gas drag force oscillation frequency riser OTC 6438 Hydrodynamic...

... enabling the whole lubricator assembly to be deployed and retrieved from the support vessel. Lower and Upper Riser Sections The lower riser section is a 20 foot stepped 00 section of pipe with a lower connecting flange of 7-1/16 10m BX 156 and upper flange is a 5-1/8" 10m BX 169. The upper riser sections...

... pressure replacement platform operation cylinder assembly riser section stripper water flange procedure riser arrangement /em OTC 5013 Replacement of a 36-in. Gas Riser Using a Hydraulically Operated Stopple by H. Torgard, Norpipe AAS, and P.H. Larsen, Phillips Petroleum Co. Norway...