Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10, Part 5American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 113
... Defects can be introduced into offshore oil and gas pipelines and risers during manufacture , construction and operation . To ensure safety and security of supply , the significance of these defects must be assessed . This paper ...
... Defects can be introduced into offshore oil and gas pipelines and risers during manufacture , construction and operation . To ensure safety and security of supply , the significance of these defects must be assessed . This paper ...
Page 115
... defects in the longitudinal seam welds : 1. Define the largest defect ai , which can conceivably survive the pre - service hydrostatic test . ( Axially - orientated defects are the most typical and severe ) . 2. Define the smallest defect ...
... defects in the longitudinal seam welds : 1. Define the largest defect ai , which can conceivably survive the pre - service hydrostatic test . ( Axially - orientated defects are the most typical and severe ) . 2. Define the smallest defect ...
Page 169
... defects can be introduced as a pro- duction related pipe - defect , during the construction stage or during service of the pipeline . Although of great interest , it is of little consequence for the operator to know when a certain crack ...
... defects can be introduced as a pro- duction related pipe - defect , during the construction stage or during service of the pipeline . Although of great interest , it is of little consequence for the operator to know when a certain crack ...
Contents
Propagation and Diffraction of Cnoidal Waves | 9 |
Dynamic Stresses and Motions of Offshore Pipelines During Laying | 17 |
TimeDevelopment of Scour Induced Free Spans of Pipelines | 25 |
Copyright | |
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applied axial base metal brazing cables calculated carbon equivalent chemical composition cnoidal waves coating cooling crack CTOD curve cycle defects developed dew point temperature diameter dynamic tension force effect electrode equation field Figure fitness-for-purpose flaws flow foam forge welding fracture fracture mechanics free span frequency friction welding gas pipeline GMAW Gr.B HAZ hardness heat input hydrocarbon dew point induction heating inner pipe installation insulation internal J-Lay length line pipe linepipe load material maximum measured mechanical properties method microstructure nonlinear offshore pipelines operation ovalization parameters pipe material pipe wall pipeline plate pressure problem procedure propagation PUFI PWHT ratio reeling S-N curves seam weld simulation Specimen steel stress surface T-cross portion tensile strength thermal thermal insulation toughness tube UOE pipe velocity wall thickness water depth water dew point weld metal X80 grade yield strength