![]() ![]() The umbilical path from the carousel to the water during lay is usually controlled by a series of sheaves and chutes Higher risk is during deck handling, initiation, landing and tie-in operations >Īn umbilical is stored on a reel or carousel on the back of the installation vessel lowering and laying the product Large MBRs Wide range of payout and vessel position possible without damaging the product Good safety margin Installation operations with the product in the water are often relatively straightforward e.g. ![]() The main part of the installation process often provides low risk to the product > pull in to FPSO) > etcĪ&R Payout Tensioner A&R Wire Load (m) Load (Tonnes) (Tonnes) Lowering to the seabed Land the 1st End Termination Normal pipelay Lower the 2nd End Land the 2nd EndĪlso > J-Tube Pull-Ins > Riser Pull-In (e.g. “Typical” Analysis of a Flexible Flowline or Umbilical > Installation Analysis Software Programs > – Tension in the winch – Tension in the pipeline/flexible/umbilical – Bending / Moments / Curvatures Using FEA software to model the different stages of the installation of a subsea product Static and Dynamic Behavior e.g. De-risking offshore installation of flexibles and umbilicals through the use of detailed global analysis modelling Chris Jones ![]()
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