Downhole tool with fuel system

A tool (1) for manipulating a material, includes a body (4) defining a chamber (6). At least one source (8) of a pressurised fuel and oxidant mixture (9) or of a monopropellant is in communication with a chamber via an injector device. At least one mechanism (18) for igniting the fuel and oxidant mi...

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Bibliographische Detailangaben
Hauptverfasser:	KIRCHBERGER, Christoph, FORSYTH, Andrew, KURILOV, Maxim, OAG, Jamie, MCKAY, Simon, FREUDENMANN, Dominic
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EXPLOSIVES EXPLOSIVES OR THERMIC COMPOSITIONS FIXED CONSTRUCTIONS MANUFACTURE THEREOF MATCHES METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS USE OF SINGLE SUBSTANCES AS EXPLOSIVES
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Beschreibung
Zusammenfassung:	A tool (1) for manipulating a material, includes a body (4) defining a chamber (6). At least one source (8) of a pressurised fuel and oxidant mixture (9) or of a monopropellant is in communication with a chamber via an injector device. At least one mechanism (18) for igniting the fuel and oxidant mixture or for initiating decomposition of the monopropellant is provided. Upon ignition of the fuel and oxidant mixture or initiation of the decomposition of the monopropellant, a combustion jet (20) or a decomposition product jet is formed in the chamber which, in use, flows out through a nozzle outlet (28) towards, and into engagement with, a material to be manipulated. Methods of using the tool (1) and fuel and oxidant compositions suitable for use in the tool are also described.