Consumable downhole tool

Details Consumable downhole tool Consumable downhole tool

E - Fixed Constructions

21

B

E21B 41/00 (2006.01) E21B 23/00 (2006.01)

Patent

CA 2686510

A torch apparatus for consuming a downhole tool having a fuel load that produces heat and a source of oxygen when burned, and a plurality of slots having interstitial spaces therebetween for allowing longitudinal flow of fluid along the torch apparatus without interfering with the flow of fluid through the slots. The slots are oriented such that the heat and source of oxygen are provided to a portion of the downhole tool that is formed from a material that is at least partially consumed when exposed to heat and oxygen, to thereby cause destruction of the tool or disengagement of the tool such that the tool falls into the wellbore.

L'invention concerne un outil de fond de trou présentant un corps ou élément structural comprenant un matériau qui est au moins partiellement consumé lorsqu'il est exposé à la chaleur et à une source d'oxygène. Le matériau peut comprendre un métal, tel que du magnésium, qui est converti en oxyde de magnésium lorsqu'il est exposé à la chaleur et à une source d'oxygène. L'outil de fond de trou peut en outre comprendre une torche avec une charge de combustible qui produit de la chaleur et la source d'oxygène lorsqu'elle est brûlée. La charge de combustible peut comprendre un solide inflammable, non explosif, tel que de la thermite.

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