Chemical heat sources for use in down-hole operations
AssigneeBiSN Tec Ltd
InventorsPaul Carragher, Clay Hughes, Ray Owen
Life of this patent
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Abstract
A chemical reaction heat source for use in heaters for downhole applications is provided. The heat source has a solid fuel composition that comprises thermite and a binding agent. The binding agent serves to maintain the solid form of the solid fuel composition during burning and ensure a predetermined uniform heating pattern can be provided for longer. The solid fuel composition can be provided in the form of blocks. The solid fuel composition can also be provided in the form of a plurality of fragments that, during burning, behave more like powdered thermite and can flow.
Claims27
A down-hole chemical heater comprising a chemical reaction heat source, said heat source having a solid fuel composition;
- and wherein the fuel composition comprises thermite and one or more binding agents that maintain the solid form of the solid fuel composition during burning.
A method of manufacturing a down-hole chemical heater, said method comprising:
- preparing a fuel composition comprising a mixture of thermite and one or more binding agents that maintain the solid form of the fuel composition during burning;
- forming the fuel composition in to one or more blocks;
- and
- inserting the blocks in a heater body.
Dependencies are inferred from the claim text.