Hejian Solidkey Petroleum Machinery Co.,Ltd.
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Payment Terms: | T/T |
Place of Origin: | Hebei, China (Mainland) |
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IADC | WOB (KN/mm) | RPM (r/min) | Applicable Formations |
517/537 | 0.4~1.0 | 120~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
617 | 0.45~1.1 | 90~50 | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
637 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
117/127 | 0.35~0.9 | 150~70 | Soft to medium formations with low compressive strength , such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
Note: The upper limits of WOB and RPM in above table should not be used simultaneously. |