Some practical analytical theories and numerical techniques for reliability assessment and prediction of the fatigue life for deepwater risers are introduced. More attention is paid to the flaw damage assessment developed on the bassis of fracture mechanics and reliability based inspection techniques,the fatigue strength evaluation on risers having inner flaws and surface cracks.
Finally, some practical analytical theory and numerical technique of reliability assessment and prediction of the fatigue life for deepwater risers are presented.
Finally, some practical analytical theory and numerical technique of reliability assessment and prediction of the fatigue life for deepwater risers are presented.
As offshore deep water riser is subjected to external hydrostatic pressure and internal content pressure simultaneously, the method of riser wall thickness calculation of the deep water riser is different from the shallow water riser and the design criterion of the two type of riser is also different.
The deepwater riser system is an important part of offshore exploration and exploitation structures, and its failure control and reliability are the key factors for the design consideration.
The deepwater riser system is an important part of offshore exploration and exploitation structures, and its failure control and reliability are the key factors for the design consideration.
As offshore deep water riser is subjected to external hydrostatic pressure and internal content pressure simultaneously, the method of riser wall thickness calculation of the deep water riser is different from the shallow water riser and the design criterion of the two type of riser is also different.
The deepwater riser system is an important part of offshore exploration and exploitation structures, and its failure control and reliability are the key factors for the design consideration.
The deepwater riser system is an important part of offshore exploration and exploitation structures, and its failure control and reliability are the key factors for the design consideration.
Steel catenary risers,which have been installed and in service safely in offshore oil and gas fields in the Gulf of Mexico,Campos Basin,Brazil,the North Sea and West Africa since 1994,are introduced in the paper.
1种全新的深水立管系统———钢悬链线立管(Steel Catenary Riser,SCR)在墨西哥湾(Golf of Mexico)、坎普斯湾(Campos Basin)、北海(North Sea)和西非(West Africa)得到了成功应用。
We consider the problem of interaction of a marine riser with a drill string inside it under the conditions of their joint bending in a strong sea current.
We derive three-dimensional equations for the statics of the string and the riser which take into account the contact interaction and friction occurring under the displacements of the drill string inside the marine riser.