Transcription of DIAMOND CORE DRILLING REFERENCE - Boart Longyear
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DIAMOND CORE DRILLING REFERENCE - Boart Longyear
DIAMOND CORE DRILLING REFERENCED imensions, Weights and Q Coring SystemsApril 2014 Copyright 2014 Boart Longyear . All rights reserved. Bit Selection GuideHardnessSoftSoftSoftMohs RocksSoapstone, Coal, Rock Salt, AmberMarble, Shale, Kimberlite, DolomiteSlateSpecialty BitsPCD, TSD, Surface SetPCD, TSD, Surface SetPCD, TSD, Surface SetBLY Alpha 0202, 06 ABR, 07 ABRBLY UMXSSUMXSSUMX, 07 UMXSSUMX, 07 UMX, 09 UMXA tlas Copco3AC7 ACFordiaHero 3 Hero 7 Hayden H3KS5 DimatecD3HR7 Copyright 2014 Boart Longyear . All rights reserved. Bit Selection GuideHardnessMedium HardMedium HardMedium HardMohs RocksSand-stonePegmatite, Pumice, Gabbro, Norite, Obsidian, BasaltDiorite, Magnetite, Hematite, Granite, RhyoliteSpecialty BitsSurface SetBLY Alpha 02, 06 ABR, 07 ABR06 ABR, 07 ABR06 ABR, 07 ABR, 08 ABR, 08 COMBLY UMXSSUMX, 07 UMX, 09 UMXSSUMX, 07 UMX, 09 UMXSSUMX, 07 UMX, 09 UMXA tlas Copco7AC7AC, 11AC11 ACFordiaHero 79-11, Hero 79-11, Hero 9 Hayden KS5H9, KS5H9, H11 DimatecHR7HR7HR10 Copyri
Drilling Parameters - Q™ Wireline Size BQ™ NQ™ HQ™ PQ™ Speed (rpm) 1,200 950 750 600 Indicative Bit Weight Range Imperial Measurement Low (lbf) 2,000 3,000 4,500 7,000 High (lbf) 5,500 8,500 12,500 19,000 Metric Measurement Low (kN) 9 13 20 31 High (kN) 24 37 56 84 Fluid Flow Range Imperial Measurement Low (gpm) 6 10 14 20 High (gpm ...
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