API 8 1/2 inch HAT127 kingdream tricone rock bit
Samples:HAT127
$1800.00/Piece | 1 Piece (Min. Order)
HAT series bit adopts rubber seal with journal bearing,which can sustain higher WOB under normal rotary speed and is suitable for drilling in formations from very soft to middle hard by properly selecting different cutting structure.
Main structure features
1.Journal bearing. Hardfaced head bearing surface. Inner hole of cone is silver-plated. The load capacity and seizure resistance of the bearing is greatly improved. O ring seal is made of the more wear resistance high saturated buna-N with the increased seal section and precisely designed sealing flange in the cone sealing area increased the reliability of the seal.
2.All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and this provides the bearing system with good assurance of lubrication.
3. For steel tooth bit the tooth surface is hardface with new type of wear resistant material and thus extended working life of the cutting structure while still maintaining high ROP.
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Basical Specification
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Size of tricone bit
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8 1/2" 215.9mm
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Connection
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4 1/2" Reg Pin
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IADC CODE
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HAT 127
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Bearing type
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Sealed journal bearing
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Operating Parameters
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Recommended Make up torque
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16.3~21.7 KN.M
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WOB (Weight On Bit)
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0.35~1.00KN/mm
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Rotary speed
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180~80 r/min
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Formation
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soft with Low compressive strength and high drillability. Such as shale, clay, salt bed and soft limestone etc
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IADC CODE
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Rock formation
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WOB
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PRM(r/min)
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417
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Low compressive strength, high drill-ability and extremely soft formation,like shale,clay ,sandstone,conglomerate etc.
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0.35~0.90
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140~70
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437
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Low compressive strength, high drill-ability and soft formation,like shale,clay,sandstone,soft limestone,salt rock,etc.
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0.35~1.00
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140~60
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517
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Low compressive strength,high drill-ability and soft formation ,like shale,clay,sandstone,soft limestone,salt rock,etc.
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0.35~1.05
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120~50
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537
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Low compressive strength,medium hard formation with hard abrasive interlayer,like Hard shale ,anhydrite,soft
limestone,sandstone,dolomite with messanine,etc. |
0.50~1.05
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110~40
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617
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High compressive strength,medium hard and thick hard interlayer,like hard shale,limestone,sandstone,dolomite,etc.
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0.50~1.05
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80~40
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637
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High compressive strength,medium hard and high abrasive formation,like limestone,dolomite,sandstone,chert,etc.
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0.70~1.20
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70~40
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Regular Size
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API REG PIN
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Regular Size
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API REG PIN
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3 7/8(98mm)
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2 3/8
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4 5/8(118mm)
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2 7/8
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5 5/8(142.8mm)
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3 1/2
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5 7/8(149.2mm)
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3 1/2
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6(152.4mm)
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3 1/2
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6 1/2(165)
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3 1/2
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7 1/2(190mm)
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4 1/2
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7 5/8(193mm)
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4 1/2
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8 1/2(215.9)
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4 1/2
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9 1/2(241.3mm)
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6 5/8
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10 5/8(269.8mm)
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6 5/8
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11 5/8(295.3mm)
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6 5/8
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12 1/4(311.15mm)
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6 5/8
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13 5/8(346mm)
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6 5/8
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15 1/2(393mm)
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7 5/8
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16(406.0mm)
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7 5/8
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17 1/2(445mm)
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7 5/8
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26(660mm)
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7 5/8
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Contact: sales@superdrill.com.cn
Phone: 86-18186993613
Tel: 86-18186993613
Company: Hubei Superdrill Equipment Co.,Ltd
Add: Building 3, Rainbow road,No.188 ; wuhan ;Hubei province
