Research Article
Coupled Dynamic Analysis for the Riser-Conductor of Deepwater Surface BOP Drilling System
| | Parameters | Value |
| | Water depth/m | 1361.0 | | Length of casing riser/m | 1350.0 | | OD of casing riser/m | 0.3397 | | ID of casing riser/m | 0.3112 | | Platform offset/% water depth | 3.0 | | Tension ratio of riser (TTR) | 1.2 | | Velocity of surface wind/m⋅s−1 | 1.0 | | Tide velocity/m⋅s−1 | 0.5 | | Current velocity/m⋅s−1 | 1.0 | | Significant wave height/m | 12 | | Significant wave period/s | 8 | | Platform slow drift amplitude/m | 9.3 | | Platform slow drift period/s | 259.8 | | Elastic modulus of steel/GPa | 210.0 | | Density of steel/kg⋅m−3 | 7850.0 | | Density of seawater/kg⋅m−3 | 1030.0 | | Density of drilling mud/kg⋅m−3 | 1200.0 | | Wellhead above the mudline/m | 3.0 | | Height of SID/m | 8.0 | | Equivalent outer diameter of SID/m | 0.8 | | Length of transition joint/m | 10.0 | | Equivalent OD of transition joint/m | 0.3683 | | Equivalent WT of transition joint/m | 0.0508 | | Length of conductor/m | 60.0 | | OD of conductor/mm | 0.762 | | WT of conductor/mm | 0.0254 | | Elastic modulus of cement sheath/GPa | 18.0 | | Length of surface casing/m | 500.0 |
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