Consumable downhole tools
First Claim
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1. A downhole tool, comprising:
- a tubular body comprising a consumable material and configured to selectively engage a wellbore wall, a casing string disposed within a wellbore, or both;
a torch body having a plurality of apertures disposed along a length of the torch body and positioned within the tubular body to form an annular space within the downhole tool; and
a fuel load associated with the torch body, the fuel load being selectively convertible to heat and a source of oxygen for passage through at least one of the plurality of apertures to contact the tubular body and consume at least a portion thereof.
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Abstract
A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
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Citations
22 Claims
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1. A downhole tool, comprising:
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a tubular body comprising a consumable material and configured to selectively engage a wellbore wall, a casing string disposed within a wellbore, or both; a torch body having a plurality of apertures disposed along a length of the torch body and positioned within the tubular body to form an annular space within the downhole tool; and a fuel load associated with the torch body, the fuel load being selectively convertible to heat and a source of oxygen for passage through at least one of the plurality of apertures to contact the tubular body and consume at least a portion thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A downhole tool, comprising:
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a tubular body configured to selectively engage a wellbore wall, a casing string disposed within a wellbore, or both; a torch comprising a fuel load and a torch body, wherein the torch body has a plurality of apertures disposed along a length of the torch body, wherein the torch body is positioned at least partially within the tubular body, and wherein the fuel load comprises thermite; and an igniter associated with the fuel load and configured to ignite the thermite, wherein the fuel load is associated with the torch body such that ignited thermite passes through at least one of the plurality of apertures to contact the tubular body and consume at least a portion thereof. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A downhole tool comprising:
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a tubular body having an axial bore disposed along at least a partial length of the tubular body and configured to selectively engage a wellbore wall, a casing string disposed within a wellbore, or both; a sealing element and one or more slips disposed around the tubular body; and a torch having a fuel load and a plurality of apertures distributed along its length, wherein one or more of the apertures are disposed within the axial bore of the tubular body, and an igniter associated with the fuel load and configured to ignite the fuel load, wherein at least a portion of the tubular body is consumed upon ignition of the fuel load. - View Dependent Claims (22)
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Specification