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Technology
Assessment & Research (TA&R) Program
| Project Number |
552 |
| Date of Summary |
March 16, 2009 |
| Subject |
Mudslides during Hurricane Ivan and an Assessment of the
Potential for Future Mudslides in the Gulf of Mexico |
| Performing Activity |
Texas Engineering Experiment Station (TEES) |
| Principal Investigator |
Stephen Wright, Robert Gilbert, E.G. Ward.
Mary Nodine, Jeong Yeon Cheon |
| Contracting Agency |
Minerals Management Service |
| Estimated Completion |
Completed |
| Description |
During 2004 and 2005, Hurricanes
Ivan, Katrina, and Rita damaged and destroyed hundreds of Gulf of
Mexico (GOM) offshore pipelines and
platforms, many from mudslides both in line with and adjacent to the
hurricanes' path. This two-phase
project examined the
mudflow/mudslide areas in the high risk mudslide
regions of the Gulf of Mexico, offshore Mississippi Delta in order to better
understand these events. |
| Progress |
Project Completed as follows:
Phase I (Sept.
2005 - Sept. 2006)
focused on gathering mudslide data that occurred
during Ivan and using that data to validate existing OTRC seafloor
stability model for conditions as severe as Ivan by analyzing selected
sites. Data on historical mudslides prior to Ivan was also reviewed. The
final report for Phase I was completed in October 2006 and attached for
review in the Reports section below. Phase II (May
2005 to October 2007) validated numerical
models to predict seafloor movements and studied the
potential for mudslides from future hurricanes in areas of interest, e.g.,
existing and future pipeline routes and platform locations. Phase II included
probabilistic analyses and calibrated models to provide estimates of
mudslide potential and the likelihood for future seafloor movements. The Phase II final report was completed
in October 2007 and attached for review in the Reports section below along
with a mudslide susceptibility program (Excel spreadsheet).
Received Addendum (attached) to Mudslide report in February 2009. |
| Report |
|
AA
(44
pages) |
Phase I Final Report entitled
Mudslides During Hurricane Ivan and an Assessment of the Potential for
Future Mudslides in the Gulf of Mexico, October
2006, by E.G.
Ward of the Offshore Technology
Research Center at Texas A&M
University in College Station,
Texas and Mary C. Nodine, Stephen G.
Wright, and Robert B. Gilbert of the Offshore Technology Research Center at
The University of Texas in Austin,
Texas. |
|
AB (192
pages) |
Mudslides during
Hurricane Ivan and an Assessment of the Potential for Future Mudslides in
the Gulf of Mexico,
October 2007, by E.G.
Ward of the Texas A&M University
Offshore Technology Research Center, College
Station, Texas and Mary C. Nodine, Jeong
Yeon Cheon, Stephen G. Wright, and Robert B. Gilbert of the University
of Texas at Austin, Austin, Texas. |
|
AC |
Mudslide Susceptibility
Spreadsheet, November 2007, Offshore Technology Research Center,
College Station, Texas. |
|
AD (23
pages) |
Addendum to Mudslides during Hurricane Ivan and an Assessment of the Potential for Future Mudslides in the Gulf of Mexico, January 2009, by Mary Nodine, Jeong Cheon, Stephen Wright, and Robert Gilbert of the University of Texas, Austin and E.G. Ward of the Offshore Technology Research Center, College Station, TX. |
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