Techniques for providing variable buoyancy to a device

A variable buoyancy device (200) having: an inner region (208) configured to contain equipment, an outer cavity (210) extending completely around the inner region, a set of valves (260), and a controller (220) coupled to the valves. The controller activates the valves to produce combinations of a fi...

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Bibliographische Detailangaben
Hauptverfasser:	Conry, Michael, Cardenas, Robert Lee, Rufo, Michael, Scrimgeour, Todd
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EQUIPMENT FOR SHIPPING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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Beschreibung
Zusammenfassung:	A variable buoyancy device (200) having: an inner region (208) configured to contain equipment, an outer cavity (210) extending completely around the inner region, a set of valves (260), and a controller (220) coupled to the valves. The controller activates the valves to produce combinations of a first (210a) and second (210b) fluid in the outer cavity (210), the first and second fluids having different buoyancies. The fluid combinations provide the device (200) with variable buoyancy. The inner region provides an advantageous location for equipment, while the outer cavity provides a significant volume for achieving a wide range of buoyancy adjustments.