Patent ID: 6966132
Filing Date: 2005-11-22
Classification: B63C,E02B,E02F,Y02A

Abstract:
1. Method for moving subsea rocks and sediments, comprising disposing, in combination with a remote controlled submarine (ROV) having propulsion means, a tubing having a substantially constant cross section and a first end adjacent the ROV and a second end adjacent the ROV, a controllable aperture to control suction force in said first end, a water pump, an ejector nozzle connected to the water pump for expelling a stream of water in a direction toward the second end of the tubing, the ejector nozzle being disposed externally to the tubing, moving the first end of the tubing to contact the subsea rocks and sediments to be moved, and establishing a controlled pressure gradient through the tubing by moved expelling the stream of water toward the second end of the tubing, whereby the rocks and sediment are expelled through the second end of the tubing.