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US 12,116,844 B2Granted
Tiling for downhole tool
AssigneeSchlumberger Technology Corporation
InventorsDavid C. Hoyle, Scott S. Dahlgren, David R. Hall, Malcolm R. Taylor
Life of this patent
Estimating the term…
Abstract
Interfacing surfaces of adjacent tiles in a downhole tool may combine to form a tortuous path therebetween. In various embodiments, this tortuous path may run generally parallel and/or perpendicular to a top surface of the tiles. One example of such a tortuous path may be created by a protrusion extending from an interfacing surface of one of the tiles that may fit snugly within a cavity receding into an interfacing surface of another of the tiles.
Claims20
A downhole tool, comprising:
- a first tile, the first tile having a top surface, a bottom surface, a first side surface, and a second side surface;
- a second tile adjacent to the first tile, the second tile having a top surface, a bottom surface, a first side surface, and a second side surface;
- the first tile comprising a first interface end facing the second tile;
- the second tile comprising a second interface end facing the first tile;
- and
- the first interface end and second interface end together forming a first tortuous path therebetween in a first direction perpendicular to the top surfaces of the first tile and the second tile, wherein the top surfaces form bearing surfaces or sealing surfaces of the downhole tool.
3 more elements
A downhole bearing, the downhole bearing comprising:
- a first bearing race;
- a first polycrystalline diamond compact (PDC) secured to the first bearing race, the first PDC having a polycrystalline diamond (PCD) layer having a top surface, a tungsten carbide layer fixed to the PCD layer having a bottom surface, a first side surface, a second side surface, and a first interface end;
- a second PDC secured to the first bearing race adjacent the first PDC, the second PDC having a PCD layer having a top surface, a tungsten carbide layer fixed to the PCD layer having a bottom surface, a first side surface, a second side surface, and a second interface end;
- and
- the first interface end of the first PDC and the second interface end of the second PDC together forming a first tortuous path therebetween in a first direction perpendicular to the top surfaces of the first PDC and the second PDC.
2 more elements
Dependencies are inferred from the claim text.