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US 12,617,015 B2Granted
Producing hydro-efflux hammer using catalyst-free PDC cutters
AssigneeSaudi Arabian Oil Company
InventorsGuodong Zhan, Jianhui Xu, Bodong Li, Abdulwahab S. Aljohar
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Abstract
Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.
Claims9
A method of forming a bottom hole assembly, the method comprising:
- forming a plurality of catalyst-free synthesized polycrystalline diamonds from a diamond powder without leaching;
- forming a plurality of cutters, each cutter comprising one of the plurality of catalyst-free synthesized polycrystalline diamond attached to a carbide substrate;
- attaching the plurality of cutters to a body of a drill bit;
- incorporating the drill bit with the attached cutters into a hydro-efflux hammer system.
1 more element
Dependencies are inferred from the claim text.