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US 12,753,658 B2Granted
Devices, systems, and methods for a cutting element
AssigneeSchlumberger Technology Corporation
InventorsYouhe Zhang, Huimin Song, Lijun Song
Life of this patent
Estimating the term…
Abstract
A cleaning cutting element includes an ultrahard layer joined to a substrate. The substrate includes a substrate bore formed at least partially therethrough. The substrate includes a plurality of conduits that extend from the substrate bore at a junction. The conduits exit the substrate at an exit opening in the circumferential wall to direct drilling fluid to a feature of the bit to which the cleaning cutting element is secured.
Claims20
A bit, comprising:
- a body having a longitudinal axis, a fluid passage extending through the body;
- a plurality of blades extending from the body, the plurality of blades forming a plurality of junk slots between adjacent blades of the plurality of blades;
- and
- a cleaning cutting element located at a center region of the bit including:
- a substrate including a substrate bore extending at least partially therethrough, the substrate bore in fluid communication with the fluid passage of the body;
- a plurality of conduits in fluid communication with the substrate bore, each conduit of the plurality of conduits including an exit opening directing drilling fluid out of the body of the bit;
- and
- an ultrahard layer having a conical shape and joined to an upper surface of the substrate,
- wherein a longitudinal axis of the cleaning cutting element is coaxial with a longitudinal axis of the body.
6 more elements
A bit, comprising:
- a body having a longitudinal axis, a fluid passage extending through the body;
- a plurality of blades extending from the body, the plurality of blades forming a plurality of junk slots between adjacent blades of the plurality of blades;
- and
- a cleaning cutting element located at a center region of the bit including:
- a substrate including a substrate bore extending at least partially therethrough, the substrate bore in fluid communication with the fluid passage of the body;
- a plurality of conduits in fluid communication with the substrate bore, each conduit of the plurality of conduits including an exit opening directing drilling fluid out of the body of the bit;
- and
- an ultrahard layer joined to an upper surface of the substrate,
- wherein a conduit quantity of the plurality of conduits is the same as a blade quantity of the plurality of blades.
6 more elements
A bit, comprising:
- a body having a longitudinal axis, a fluid passage extending through the body;
- a plurality of blades extending from the body, the plurality of blades forming a plurality of junk slots between adjacent blades of the plurality of blades;
- and
- a cleaning cutting element located at a center region of the bit including:
- a substrate including a substrate bore extending at least partially therethrough, the substrate bore in fluid communication with the fluid passage of the body;
- a plurality of conduits in fluid communication with the substrate bore, each conduit of the plurality of conduits including an exit opening directing drilling fluid out of the body of the bit;
- and
- an ultrahard layer joined to an upper surface of the substrate,
- wherein a ratio of a cutting element diameter of the cleaning cutting element to a bit diameter of the bit is between 1:6 and 1:12.
6 more elements
Dependencies are inferred from the claim text.