Title:
CUTTING REMOVAL SYSTEM FOR PDC DRILL BITS
Document Type and Number:
WIPO Patent Application WO/2010/075153
Kind Code:
A3
Abstract:
The blades of a PDC bit have a nozzle between them preferably oriented laterally across the plane of the cutters on the blade and more preferably in a trough disposed adjacent the row of cutters. The cutting is less likely to adhere to the bit surface because the trough abruptly spaces back the bit surface and the spray being oriented radially preferably into the trough gets between the bit surface and the cutting before it can adhere to the bit surface using the fluid energy to drive the cutting into the junk slot.
Inventors:
WLLS MICHAEL R (US)
MARVEL TIM K (US)
MARVEL TIM K (US)
Application Number:
PCT/US2009/068405
Publication Date:
August 26, 2010
Filing Date:
December 17, 2009
Export Citation:
Assignee:
BAKER HUGHES INC (US)
WLLS MICHAEL R (US)
MARVEL TIM K (US)
WLLS MICHAEL R (US)
MARVEL TIM K (US)
International Classes:
E21B10/56; E21B10/46
Foreign References:
| US5197554A | 1993-03-30 | |||
| US20080029312A1 | 2008-02-07 | |||
| EP0656458A2 | 1995-06-07 | |||
| US20080149393A1 | 2008-06-26 |
Download PDF: