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US 2019/0055789 A1Published application
Energy-emitting bits and cutting elements
AssigneeSchlumberger Technology Corporation
InventorsMichael G. Azar, Madapusi Keshavan, Iain Michael Cooper
Life of this patent
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Abstract
A cutting element has a port extending through at least a portion of the cutting element body. A cutting face of the cutting element includes an ultrahard material. The port is configured to provide fluid communication therethrough and to direct focused energy from a focused energy source through the cutting element toward a formation proximate the cutting face.
Claims20
An energy-emitting cutting element, the cutting element comprising:
- a body having a rear face, a cutting face, and a longitudinal axis extending therethrough, the cutting face including an ultrahard material;
- a port extending through at least a portion of the body parallel to the longitudinal axis, the port being configured to provide fluid communication through at least a portion of the cutting element;
- and
- an energy direction member extending within at least part of the port.
1 more element
A laser-mechanical bit comprising:
- a focused energy source;
- a bit body having a first longitudinal axis;
- and
- an energy-emitting cutting element coupled to the bit body, the energy-emitting cutting element including:
- a body having a second longitudinal axis extending therethrough, the body including a cutting face that includes an ultrahard material, the first longitudinal axis and second longitudinal axis having a non-zero angle therebetween;
- a port extending through at least a portion of the body parallel to the second longitudinal axis, the port being configured to provide fluid communication through the at least a portion of the body;
- and
- an energy direction member extending within at least part of the port, the energy direction member in communication with the focused energy source.
5 more elements
A method of removing material from a formation, the method comprising:
- providing an energy-emitting cutting element having a port extending at least partially therethrough;
- flowing a fluid through the port of the energy-emitting cutting element;
- emitting energy from the port of the energy-emitting cutting element toward an energized portion of a formation at a non-perpendicular incident angle to the formation;
- weakening at least part of the formation by the energizing, heating, or expanding the energized portion of the formation;
- and
- removing a weakened portion of the formation through mechanical removal.
3 more elements
Dependencies are inferred from the claim text.