PDC Bits\',Diamond Bits\' cutter exposure is optimized to insure the bit can achieve higher ROP is soft to medium formations.
1.Cutting structure is force balanced and bit blade is asymmetrically designed so that the load on bit is balanced that resulting better stability of the bit.
2.Main cutter are high performance PDC cutter to insure servicd life of the bit while improving ROP.
3.Cutter esposure is optimized to insure the bit can achieve higher ROP is soft to medium formations.
4.Shock absorbers are designed to make the bit capadle of drilling through formations with hard stigers.
5.Hydraulic system of the bit is optimized ueing dynamic flow pattern simulation technology to enhance clearing and cooling effects of the bit to effectively prevent bit from balling.
Application:
1.From 3\'\'(76.2mm) to 17 1/2\'\'(444.5mm);
2.Exploration,water-well drilling.
Formation | Lithology | IADC |
Very soft | Clay | M121 |
Mudstone | M222 | |
Marl | M222 | |
soft | Marl | M223 |
Rock salt | M232 | |
Gypsum | M232 | |
Sandstone | M232 | |
Medium soft |
Shale | M322 |
Sandstone | M322 | |
Cretaceous rocks |
M323 | |
Medium | Shale | M323 |
Mudstone | M323 | |
Sandstone | M323 | |
Limestone | M323 | |
Medium hard |
Shale | M422 |
Mudstone | M333 | |
Sandstone | M422 | |
Limestone | M423 | |
Anhydrites | M432 | |
hard | Dolomite | M432 |
Siltstone | M433 | |
Limestone | M433 | |
Dolomite | M433 | |
Quartzite | ||
Very hard | Quartzite | |
Basalt | ||
Flint |