Spotlight Projects:

The Hopper Engineering Associates team provides practical and exciting solutions to unique problems in several industries. To showcase our recent work we choose a project of the month. An archive of previous winners can be found here.

December 2009 Project:

Offshore Platform - Diesel Firewater Caisson Wall Thinning Assessment
Diesel Firewater Caisson Wall Thinning Assessment

Assess the condition of a corroded Diesel Firewater Conductor Pipe (Caisson) located on an offshore platform. Determine if the caisson remains fit for service, if it does not then design a repair.


UT measurements were taken to determine the remaining wall thickness. The caisson was analyzed for both operational loads and ocean current forces. Fatigue failure was also evaluated due to the cyclic nature of the ocean current forces. The caisson was found to be fit for service and safe to operate for at least one more year.

HEA has completed numerous jobs similar to the one shown above (Similar Projects)