Client X used a mix of 1613BIM-1 and XM-53 to make an 8.3-inch 5-blade drill bit to drill hard sandstone in deep formations in the Ningbo block of CNOOC. The drill bit satisfactorily completed all the indicators required by Party A. Footage: 365m, average speed: 15.63m/h

1#3#4# blade XM53 cutters,  2#5# blade BIM-1 cutters

All previous X customers used XM53 cutters only.