Stepped polycrystalline diamond compact insert

Details Stepped polycrystalline diamond compact insert Stepped polycrystalline diamond compact insert

2006-11-28

2006-11-28

Neuder, William (Department: 3672)

Wells

Processes

Distinct, separate injection and producing wells

C166S400000

Reexamination Certificate

active

07140448

ABSTRACT:
The present invention addresses this need in the art by providing a cutter insert comprising a plug section and a cutter pedestal. The cutter insert is preferably formed of tungsten carbide, except for two exterior surfaces covered with PDC. The plug section may be circular or oval in cross section perpendicular to the axis of the insert. The plug section and the pedestal each defines a shoulder which is coated with a PDC layer. In this way, two cutting surfaces are applied to the formation, enhancing the cutting ability of the insert.

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