| Ohangtech Drill Bit Specification |
| PDC Bit General Information |
| Drill Diameter | Bit Series Code | Blade Qty. | Main Cutter Qty. | Additional Features Code |
| 3 1/4”-26” | S: Steel PDC drill bit
M: Matrix PDC drill bit
D: Directional PDC drill bit
B: Bicenter PDC drill bit
P: Cone PDC bit | 3~12 | ∮25 ~25.40mm | B: Double row tooth |
| ∮19 ~19.05mm | A: Damping tooth |
| ∮16 ~15.875mm | R: Back reaming |
| ∮13 ~13.44mm | G: Improved gauge |
| ∮10 ~10.00mm | Y: Sharp tooth |
| ∮8 ~8.00mm | S: Spiral blade |
| | | | |
| 3-1/4" ~ 26" S Series PDC Bit Guide Line |
| Formation | Lithology | IADC | Type Guide |
| Extremely soft | Clay, mudstone, marl | S123 | S316,S319,S416,S419,S519 |
| Soft | Marl, mudstone, shale | S222
S223 | S416,S516,S519 |
| Medium | Shale, limestone and sandstone | S322
S323
S333 | S513,S516,S613,S616 |
| Hard medium | Sandstone, gravel, dolomite, anhydrite | S423
S432
S433 | S410,S510,S513,S516,S610
S613,S616,S713,S716,S813 |
| | | | |
| 3-1/4" ~ 17-1/2" M Series PDC Bit Guide Line |
| Formation | Lithology | IADC | Type Guide |
| Extremely soft | Clay, mudstone, marl | M123 | M316,M319,M416,M419,M519 |
| Soft | Marl, mudstone, shale | M222
M223 | M416,M516,M519 |
| Medium | Shale, limestone and sandstone | M322
M323
M333 | M513,M516,M613,M616 |
| Hard medium | Sandstone, gravel, dolomite, anhydrite | M423
M432
M433 | M410,M510,M513,M516,M610
M613,M616,M713,M716,M813 |
| | | | |
| 3-1/4" ~ 17-1/2" D Series PDC Bit Guide Line |
| Formation | Lithology | IADC | Type Guide |
| Extremely soft | Clay, mudstone, marl | M/S123 | D316,D319,D416,D419,D519 |
| Soft | Marl, mudstone, shale | M/S222
M/S223 | D416,D516,D519 |
| Medium | Shale, limestone and sandstone | M/S322
M/S323
M/S333 | D513,D516,D613,D616 |
| Hard medium | Sandstone, gravel, dolomite, anhydrite | M/S423
M/S432
M/S433 | D410,D510,D513,D516,D610
D613,D616,D713,D716,D813 |
| | | | |
| Hybrid Bit General Information |
| Drill Diameter | Bit Series Code | Cone Qty. | Blade Qty. | PDC Cutter Code |
| 8-3/8”～26” | H:PDC-cone hybrid bit
HD:Directional hybrid bit | 2~4 | 3~8 | ∮19 ~19.05mm |
| ∮16 ~15.875mm |
| ∮13 ~13.44mm |
| | | | |
| 8-3/8" ~ 26" H Series Hybrid Bit Guide Line |
| Type | Size | Formation / Technique |
H2413
H2416 | 8-3/8”,8-1/2”,
8-3/4”,9-1/2” | Hard strata, abrasive strata, heterogeneous formations (such as
gravel strata), soft hard interlacing and other complex hard
drilling strata |
H3316
H3319 | 12-1/4”,13-1/8”,
13-3/8”,16”,17-1/2” | Hard strata, abrasive strata,Multiple layers of soft and hard
frequent transformation strata and giant boulder strata |
H4416
H4419 | 22”,26” | Hard strata,Complex interlaced strata,Adapt to small torque and low
torsional vibration drilling |
| | | | |
| 8-3/8" ~ 17-1/2" HD Series Hybrid Bit Guide Line |
| Type | Size | Formation / Technique |
H2413
H2416 | 8-3/8”,8-1/2”,
8-3/4”,9-1/2” | Directional drilling in soft- hard formations, ,extended reach
wells ,horizontal wells, shale gas horizontal wells, abrasive
formations, heterogeneous formations (such as gravel beds),
interbeds, multi-layer soft and hard transformation frequently
formations. |
H3316
H3319 | 12-1/4”,13-1/8”,
13-3/8”,16”,17-1/2” |
| | | | |
| Engineering PDC Bit Guide Line |
| Drill Diameter | Bit Series Code | Blade Qty. | Main Cutter Code |
| 3-7/8" ~ 12-1/4" | ES STEEL BODY PDC engineering bits
EM Matrix PDC engineering bits
EP Conical tooth
PDC engineering bits | 1~9 | ∮25 ~25.40mm |
| ∮19 ~19.05mm |
| ∮16 ~15.875mm |
| ∮13 ~13.44mm |
| ∮10 ~10.00mm |
| ∮8 ~8.00mm |
