Tool and method for removing gas hydrates from the surface of subsea oil and gas exploration and production equipment through laser radiation

A tool and related method for removing unwanted gas hydrates from the surface of equipment used in subsea exploration and production. The tool includes a main vessel and a power cable linked together by a connector. Inside the vessel a laser device is connected to an adjustable focus collimator by a...

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Bibliographische Detailangaben
1. Verfasser:	Leone Pereira Masiero
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CLEANING CLEANING IN GENERAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A tool and related method for removing unwanted gas hydrates from the surface of equipment used in subsea exploration and production. The tool includes a main vessel and a power cable linked together by a connector. Inside the vessel a laser device is connected to an adjustable focus collimator by a cable, with the wavelength emitted by the laser being between 200 nm and 930 nm. When the radiation reaches the subsea exploration equipment it causes the heating thereof, which in turn heats the hydrate through conduction, breaking down the hydrate formation from the inside out. The front lid of the tools includes a window fitted with anti-reflection film that forms an interface between the vessel and the aqueous medium.