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US 2018/0002986 A1Published application
Customized Drilling Tools
AssigneeSmith International, Inc.
InventorsYouhe Zhang, Xiaoge Gan, Huimin Song
Life of this patent
Estimating the term…
Abstract
A bit includes a bit body having at least one blade coupled to the bit body. The blade has a plurality of cutting elements at a nose region and a shoulder region of the blade. A plurality of fluid outlets are positioned on the blade such that at least 30% of the cutting elements have a fluid outlet within a distance that is two or three times a cutting element diameter away from a cutting face of the cutting element.
Claims20
A bit for removing material from a formation, the bit comprising:
- a bit body;
- a blade coupled to the bit body, the blade defining a nose region and a shoulder region;
- a plurality of cutting elements coupled to the blade in the nose region and the shoulder region, at least one cutting element of the plurality of the cutting elements having a cutting face having a diameter;
- and
- a plurality of fluid outlets, the plurality of fluid outlets positioned such that at least 30% of the plurality of cutting elements have at least one fluid outlet positioned an outlet distance equal to or less than three times the diameter of the cutting element away from the cutting face of the at least one cutting element.
2 more elements
A drill bit, comprising:
- a bit body, the bit body having a central conduit and a chamber configured to convey drilling fluid through the bit body;
- a blade coupled to the bit body;
- a plurality of cutting elements coupled to the blade, at least one cutting element of the plurality of the cutting elements having a cutting face having a diameter;
- a plurality of fluid outlets, the plurality of fluid outlets positioned such that at least 10% of the cutting elements have a fluid outlet positioned a distance equal to or less than 100% the diameter of the cutting face away from the cutting face of the cutting element;
- and
- a primary conduit providing fluid communication from the chamber to at least one fluid outlet of the plurality of fluid outlets.
3 more elements
A method of removing material with a bit, the method including:
- flowing a fluid through a drill string to a bit having a plurality of cutting elements;
- directing the fluid through at least one of a plurality of fluid conduits in the bit to a fluid outlet;
- and
- discharging the fluid from the fluid outlet in fluid path along or toward a cutting face of at least one of the plurality of cutting elements.
1 more element
Dependencies are inferred from the claim text.