Compound diamond cutter

Details Compound diamond cutter Compound diamond cutter

1994-01-24

1996-04-09

Neuder, William P.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175432, E21B 1052

Patent

active

055052738

ABSTRACT:
A diamond drag bit is disclosed that utilizes stud type PDC cutters that have dome shaped polycrystalline diamond depth of penetration limiters fused to the tungsten carbide surface trailing the PDC compact disc. This cutter penetration limiting diamond dome surface acts as an impact or shock absorber to minimize the impact damage to the PDC cutter when drilling laminated hard and soft rock formations.

REFERENCES:
patent: 4718505 (1988-01-01), Fuller
patent: 4804049 (1989-02-01), Barr
patent: 4832892 (1989-04-01), Fuller
patent: 4889017 (1989-12-01), Fuller et al.
patent: 4991670 (1991-02-01), Fuller et al.
patent: 5007493 (1991-04-01), Coolidge et al.
patent: 5244039 (1993-09-01), Newton et al.

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