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 75
... position , more drag chain lifts off of the seabed thereby increasing the weight acting against the buoy . Similarly , as the pipe tends to sink beneath the desired position , more drag chain rests on the seabed thus reducing the load ...
... position , more drag chain lifts off of the seabed thereby increasing the weight acting against the buoy . Similarly , as the pipe tends to sink beneath the desired position , more drag chain rests on the seabed thus reducing the load ...
Page 155
... Position determination from space by means of satellites is presently available via the NAVSTAR - GPS ( Navigation System Using Time and Ranging Global Positioning System ) . This system provides accurate time , position and ...
... Position determination from space by means of satellites is presently available via the NAVSTAR - GPS ( Navigation System Using Time and Ranging Global Positioning System ) . This system provides accurate time , position and ...
Page 227
... position location VE - 20 ° C J Weld metal 88 Hv max . 10 kgf Weld metal API 1104 290 Face bend Good 607 Base metal ... position Welding direction Welding material Preheat temp . Shielding gas 1.7 Gap - O 1.4 Mechanized GTAW ( Pulsed ...
... position location VE - 20 ° C J Weld metal 88 Hv max . 10 kgf Weld metal API 1104 290 Face bend Good 607 Base metal ... position Welding direction Welding material Preheat temp . Shielding gas 1.7 Gap - O 1.4 Mechanized GTAW ( Pulsed ...
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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analysis applied Arctic areas assumed axial bending bottom boundary calculated caused coefficient combined compared Conference considered corrosion crack cylinder depth determined developed diameter direction displacement drag effect element Engineering equation example experimental experiments field Figure flow free span frequency function given ground hydrodynamic increase influence installation International layer leak detection length lift force limit liquid load material maximum mean measured Mechanics metal method monitoring movement normal obtained Offshore operating parameters performed period phase pipe pipeline position predicted present pressure problem procedure properties range ratio regular waves relative resistance response riser roughness sand scour seabed shown shows simulated soil solution steel strain stress structural surface Table technique temperature thickness tion values variation velocity wall wave welding