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China Steel Body PDC Bit Suppliers
Hejian Deris Both manufacturer and distributor, specialize on the Diamond PDC Drill Bit / Steel Body PDC Bit / water well PDC Bit / PDC drill bit designed to run at high penetration rates even in applications that call for higher blade and cutter counts. Its unique cutting structure layout adds another dimension to bit stability and smooth running by combining the penetration rate potential of traditional "single set" cutter layouts with the life extending features of a "plural set" cutter layout. The result is a bit that runs up to 20 percent faster than conventional PDC bits with minimum bit wear.
Steel body PDC bit size from 5 7/8"~17 1/2" . PDC mean polycrystalline diamond cutters
Steel body PDC bit feature
1. Double rows spiral five blades design, rational allocation if high quality small size PDC Cutters . The maximum local cutters equivalent density , improve the offensive and abrasive resistance of the bit
2. High quality arc PDC cutters gauge, reduce the abrasion of rock on the bit`s body, increase wear resistance and stability of the drill gauge
3. Using a dynamic flow simulation technology to optimize the hydraulic design of the PDC bit, so bottom hole flow field optimization, enhanced PDC bit cleaning, cooling capacity, more optimum bottom hole flow pattern and anti-balling .
4. Medium hard formation with high compressive strength and abrasive, such as Limestone, Anhydrite, Dolomite and so on
Table of classification of formation hardness and bit selection
Table of classification of formation hardness and bit selection | |||||
IADC code | IADC code of diamond bit | Formation description | Rock type | Compressive strength(Mpa) | ROP(m/h) |
111/124 | M/S112~M/S223 | Very soft:sticky soft formation with low compressive strength. | Clay Siltstone sandstone |
<25 |
>20 |
116/137 | M/S222~M/S323 | Soft:soft formation with low compressive strength and high drillability. | Clay rock Marl Lignite sandstone |
25~50 |
10~20 |
417/527 |
M/S323~M/S433 |
Medium soft:soft to medium formation with low compressive strength and steak. | Clay rock Marl Lignite Sandstone Siltstone Anhydrite Tuff |
50~75 |
5~15 |
517/537 | M322~M443 | Medium:medium to hard formation with high compressive strength and thin abrasive streak. | Mudstone Dark rock shale | 75~100 | 2~6 |
537/617 | M422~M444 |
Medium hard:hard and dense formation with high compressive strength and medium abrasiveness. | Dark rock Hard shale Anhydrite Sandstone Dolomite | 100~200 | 1.5~3 |
PDC bit shank thread and recommended make up torque | ||
Bit size(in) | API regular pin(in) | Recommended up torque(KN.M) |
3 1/2~4 1/2 | 2 3/8 Reg | 2.4~2.7 |
4 17/32~5 | 2 7/8 Reg | 4.2~4.6 |
5 1/32~7 7/8 | 3 1/2 Reg | 7.1~7.7 |
7 13/32~9 3/8 | 4 1/2 Reg | 17.0~18.6 |
9 13/32~14 1/2 | 6 5/8 Reg | 50.3~57.5 |
14 9/16~18 1/2 | 7 5/8 Reg | 65.5~71.9 |
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.