Product Category
Oil & Gas > Oil and Gas Exploitation
PRODUCT SPECIFICATIONSSize8-1/2 inch (Φ215.9mm)Model number8-1/2HS6523SABody typeHigh Manganese SteelNumber of blade5Primary PDC cutter size1613Number of nozzle 5Diameter of nozzle 18 mmGauge length50.8 mmAPI connection API 4-1/2 REGMake-Up Torque(KN.m) 16.3~21.7(4.79)KN·m(Mpa)Suitable formation Abrasive formationWeight On Bit(WOB)4-16 TRotary Speed(RPM)60-240r/minApplicationOil & Nature Gas QualityHigh LevelPackageIron CaseMOQ1 PieceCertificateISO 9001OEMYesCustomized SizeYesCharacteristics:1. The crown surface of the bits is medium cast surface which makes the bit suitable for normal hard to hard and strong abrasive formation.2. The conical surface is shallow, so the bit has good orientation, good cleaning effect and strong aggressivity.3. The moderate distance between the nose part and the center makes the bit's crown have lager area to resist impact.4. The angle of the PDC cutter is 20-27°,which makes the bits have strong abrasive and impact resistance.5. The design of the gauge's PDC cutter exposure can increase the cutting area in the gauge part. This design will be better protect gauge effect and abrasion resistance.6. The mid-length gauge surface is welded by single-row PDC cutter gauge teeth to enhance the abrasion resistance and be better protect gauge effect.At the meantime, the design can increase the stability of the bits.