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was a paper presented at the Deepwater Pipelines Technology Conference
in New Orleans in 1999 |
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Abstract
The capital value of deepwater gas pipelines with dependent upstream
and downstream facilities is such that these developments must carry
a low level of risk during construction and high reliability in
operation. This makes it necessary to understand and quantify risks
and uncertainties in order to support the business case for these
projects. In the deepwater areas beyond continental shelves, the
primary areas of risk and uncertainty are perceived as pipeline
buckling during construction and geo-hazards during operation, such
as earthquake induced slope instability or seismic fault movement.
These issues are discussed and illustrated by reference to integrity
assessment studies performed during the detail design of a 500-km
24-inch gas pipeline in a seismic deepwater region. For this project,
these "deepwater" risks were quantified and shown to be
low when compared against generic values for shallow water pipelines.
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Paper in PDF format (148 k)
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