| Customized: | Customized |
|---|---|
| Standard: | API |
| Material: | Tungsten Carbide |
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| NO. | IADC | recommend parameters |
application formation | |
| WOB KN/mm |
RPM r/min |
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| 1 | 114,115 | 0.3~0.75 | 180~60 | Extremely soft formation with low compressive strength and high drillability,such as clay,mudstone,cretaceous |
| 2 | 124,125 | 0.3~0.85 | 180~60 | soft formation with low compressive strength and high drillability,such as mudstone,gypsum,salinastone,soft shale and soft limestone |
| 3 | 134,135 | 0.3~0.95 | 150~60 | Soft to mid-soft formation with low compressive strength and high drillability,such as mid-soft shale,anhydrite,mid-soft limestone,mid-soft sandstone and soft formation with hard interlayer |
| 4 | 214,215 | 0.35~0.95 | 150~60 | Medium formation with high compressive strength,such as mid-soft shale,anhydrite,mid-soft limestone,mid-soft sandstone and soft formation with hard interlayer |
| 5 | 244 | 0.35~0.95 | 150~50 | Mid-hard formation with high compressive strength,such as abrasiveness shale,limestone,sandstone,dolomite and anhydrite,marble |
| 6 | 324 | 0.4~1.0 | 120~50 | Medium abrasiveness formation,such as abrasiveness shale,limestone,dolomite and anhydrite,marble |
| 7 | 515,525 | 0.35~0.9 | 180~60 | Soft formation with low compressive strength,such as mudstone,gypsum,salinastone,soft shale,soft limestone |
| 8 | 535,545 | 0.35~1.0 | 150~60 | Soft to medium formation with low compressive strength,such as mid-soft shale,mid -soft limestone,mid-soft sandstone and medium formation with harder abrasiveness interbeds |
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