Abstract

Our prototype of a 3000-m-class underwater glider for long-term virtual mooring will rise and descend between the seafloor and the sea surface periodically to monitor the sea environment over one year. It can sleep on the seafloor to extend the operation period. To evaluate its pitch control performance, we conducted vehicle gliding tests using a long towing tank and sea tests. The new buoyancy engine uses a small reciprocal axial piston pump. This report presents test results along with comparison to simulation results. We also present an outline of the new buoyancy engine.

Keywords:
sea test, oil reservoir, pitch target, production control, pitch control, kobayashi, nylon string, production monitoring, nakamura, pid controller
Subjects:
Well & Reservoir Surveillance and Monitoring
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2014. International Society of Offshore and Polar Engineers
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