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Project Number 253
Date of Summary March 31, 1997
Subject Blowout Preventer Study
Performing Activity Tetrahedron, Inc
Principal Investigator Dr. Waqi Alam
Contracting Agency Minerals Management Service
Estimated Completion Complete
Description Current regulations require that blowout preventers (BOP) be tested

1) when installed,

2) before drilling out each string of casing and

3) at least once each week, but not exceeding 7 days between tests, alternating between control stations.

At the request of the oil industry, the 7 day inspection period is being reviewed for the possibility of extending the inspection frequency to once every 14 days.
Progress Complete

Reports
AA (33 pages) File in Adobe's Portable Document Format (PDF) . Reliability of Blowout Preventers Tested Under Fourteen and Seven Days Time Interval, Final Report, Tetrahedron, Inc, December 1996.

 

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