Premium PDC drill bits , PDC bit 7 7/8 inch
Roller cone to PDC
Higher ROP, Greater Footage, Improved Drilling Economics
Building on three decades of continuous improvement, we introduce
the next generation of PDC technology: premium PDC.
With the introduction of PDC, we continue our tradition of
innovation by offering a line of bits capable of drilling further,
faster through the toughest, most abrasive formations. Our PDC is
setting footage and ROP records seemingly impossible just years
ago.
With the introduction of our application-specific PDC bit, tougher
cutters and improved stability nearly doubled ROP through the
Granite Wash at 30 ft/hr. Now, PDC bits have pushed the performance
even greater, drilling the tough formation at an average ROP of
41.8 ft/hr or 156% faster compared with the roller cone average .
Quantec PDC innovations are based on:
1. 129,737 work hours
2. 6,000 feet of rock drilled in our drilling lab
3. 4,000 hours of lab time
4. 2,500 hours in simulator and rig tests
5. 2,400 field runs with ROSCHEN cutters
ROSCHEN PDC
Bit: 7 7/8-in.
Formation: Limestone, dolomite, shale
Challenge: Drill through the abrasive Granite Wash in One Fast
Run™, decreasing the number of bits used in this interval and
reducing trip time; reduce vibration; improve stability; eliminate
lost circulation.
Results: Quantec technology met all of the operator objectives,
drilling through the Prue, Cherokee, Red Fork, and Atoka abrasive
formations in one run and eliminating at least one trip. The robust
cutting structure, designed specifi cally for this application with
the strategic placement of cutters through diamond volume
management, drilled 2,785 ft compared with 1,099 ft for the average
of the offsets. Drilling hours increased 122%; ROP 8%.
Some Parameters:
| No. | Formation | IADC number | Lithology | Appropriate PDC bit type |
| 1 | Very soft | S123 | Clay Mudstone Marlite | 1944S,1952 |
| 2 | soft | S223 S233 | Marlite Saline rock Shale | 1942D,152GS,1952AGS, 1952A,1652,1362GR |
| 3 | Medium soft | S323 S324 S334 | Shale Sandstone Chalk | 1952GRS,1952AGRS,1963AGS, 1652S,1653S,1363AGRS,1362GR,1652DGS |
matrix body PDC drill bit
| No. | Formation | IADC code | Lithology | Appropriate PDC bit type |
| 1 | Very soft | M123 | Clay Mudstone Marlite | 1944R,KM1952R |
| 2 | Soft | M223 | Marlite Saline rock Shale | 1952R,1952GR,1952AR,1952ARG, 1652AR,1652R,1652AGR |
| 3 | Medium Soft | M323 M324 | Shale Sandstone Chalk | 1652DR,1662,1662GR,1953DGR |
| 4 | Medium | M423 M433 | Sandstone Limestone Shale | 1665GR,1665ADR,1362,1365D,1375D |
