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Technology
Assessment & Research (TA&R) Program
| Project Number |
540 |
| Date of Summary |
September 25, 2006 |
| Subject |
Risk Assessment of Surface vs. Subsurface BOP's on Mobile
Offshore Drilling Units |
| Performing Activity |
Texas A&M University, College of Engineering, Dept. of Petroleum Engineering |
| Principal Investigator |
Dr. Jerome Schubert |
| Contracting Agency |
TEES/OTRC |
| Estimated Completion |
Completed |
| Description |
Compare the use of a slim high-pressure riser system and a surface BOP to
the conventional subsea BOP and large diameter low-pressure drilling riser
in the deepwater Gulf of Mexico region. |
| Progress |
The study included: A literature review to assess the state of the art in the use of surface BOPs on MODUs; the review included:
Equipment currently being utilized by operators and drilling contractors where this technology is being applied, as well as sea conditions (currents,
wave height, and storm frequency and severity)
Comparison of the sea conditions where surface BOPs are utilized on MODUs to
those in the Gulf of Mexico.
Analysis of the frequency of riser failures for both conventional large
diameter risers as well as the smaller diameter high pressure risers. The
review included the causes of the failures based on analyses performed by
others. |
| Report |
| AA
(109 pages) |
Final Report, Risk Assessment of Surface vs. Subsurface BOP’s on Mobile
Offshore Drilling Units, Texas A&M University, August, 2006. |
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