While drilling onshore Thailand, PTTEP wanted to reduce bit trips and increase ROP in an 8½-in section consisting of hard and abrasive sandstone with interbedded shale.
In the offset well in the same TVD interval, a 7-blade conventional PDC bit with 16-mm cutters drilled a short interval with slow ROP and required multiple trips.
EnduroBlade bits feature the Enduro 360 rolling diamond cutting element that rotates to disperse heat and wear. The rotating action enables the cutting edges to stay sharper longer, extending bit life beyond the life of PDC bits with flat, fixed PDC cutters.
Using the EnduroBlade bit enabled PTTEP to increase bit durability and boost ROP by an average of 20 ft/h, saving 2.6 days of drilling. In one BHA, the bit drilled the longest interval in the field.
