| Model: | - |
|---|---|
| Brand: | Leeding |
| Origin: | - |
| Category: | Industrial Supplies / Machine Hardware / Other Machine Hardware |
| Label: | drilling bits , oil well drill , oil drilling service |
| Price: |
-
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| Min. Order: | 1 piece |
| Last Online:21 Nov, 2013 |
IADC WOB(kM/mm) (Bit Dia) RPM(r/min) Applicable Formations 512 0.35--0.7 120-60
Soft formations with low compressive strength and high drillability,such as mudstone,gypaum,salt,soft shale ,soft
limestone,etc.
542 0.4---0.8 100-60 Soft medium formations with low compressive strength ,such as medium soft shale, medium soft limestone,
medium soft sandstone ,medium fomation with harder
and abrasive interbeds,etc. 612 0.5---0.9 100-60 Medium hard formations with high compressive strength,
such as hard shale,limestone, sandstone,dolomite,etc. 732 0.6---1.1 90-50 Medium to high abrasive hard formations such as hard
shale, hard limestone, sandstone,siltstone, basalt,
granite,quarts sandstone,hard dolomite,hard limestone,
pynte,etc.
