Method and apparatus for pre-installing cold water pipes for a floating ocean thermal energy conversion facility
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United States of America Patent
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Oct 7, 2014
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N/A
app pub date -
Jul 3, 2012
filing date -
Jul 6, 2011
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Abstract
An apparatus for installing means to supply cold water from depth to a floating vessel comprises a template having a plurality of receptacles for receiving a plurality of vertically-oriented cold water pipes. A method for installing a plurality of cold water pipes at a floating, offshore ocean thermal energy conversion facility comprises: lowering such a template to the seafloor; inserting vertically-oriented pipes into the receptacles on the template; providing sufficient buoyancy near the top of the pipe to maintain the pipe in a generally vertical state; positioning a floating vessel having receptacles configured to engage the upper ends of the pipes over the template; raising the template with the inserted pipes from the seafloor until the upper ends of the pipes engage the receptacles; and, locking the pipes in the receptacles such that the pipes are in fluid communication with a cold water sump on the floating vessel.
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