Cutting structure design with secondary cutter methodology

Cutting structure design with secondary cutter methodology

  • CN 105,849,355 A
  • Filed: 12/18/2013
  • Published: 08/10/2016
  • Est. Priority Date: 12/18/2013
  • Status: Active Application
First Claim
Patent Images

1. for a drill bit for subsurface drilling operation, comprising:

  • Bit body, it has one or more blade;

    Multiple main cutters, each main cutter is arranged at least one blade;

    WithMultiple secondary cutters, each secondary cutter is arranged at least one cutter different from the described blade being arranged above with described main cutterOn sheet.

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