Analysis of global forces in the wellhead/wellhead connector as a function of wellhead lateral support and stiffness
Master thesis
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http://hdl.handle.net/11250/219661Utgivelsesdato
2014-06-16Metadata
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Sammendrag
During the life of a well (typically 20 years), a number of operations need to be performed
that requires the wellhead/wellhead connector to connect directly to a rig through a riser
system. While connected to the vessel the wellhead and conductor system is subjected to
many forces from the riser, BOP, waves and vessel.
In deep water a small movement from the vessel can mean a large movement in the riser
and BOP stack, which leads to higher loads on the wellhead/wellhead connector.
This project will look into the angle of rotation and displacement of the wellhead datum
considering bending stiffness and lateral support of the wellhead. Bending moment and
shear forces obtained from a riser analysis of a drilling riser (done in OrcaFlex) will be
applied at the wellhead datum.
Beskrivelse
Master's thesis in Offshore technology