NOD140Eccentric Overburden Drilling Equipment
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1
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Casing Tube
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Maximum O.D.: 171mm
Minimum I.D.: 155.6mm
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2
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Drill Pipe
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Connection Thread: API2 3/8”Reg
O.D.: 89mm
Wrench Flats: 65mm
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3
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Guide Sleeve
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Effective length: 205mm
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4
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DTH-Hammer
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HD55, Cop54, SD5, DHD350R, QL50
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5
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Casing Shoe
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L3=90mm L4=63mm D3=155.3mm D4=143mm
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6
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Guide Device
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L1=55mm L2=160mm D1=141mm D2=154mm
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7
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Reamer
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D5=138mm L5=69.5mm
Reaming Diameter: 185mm
Reamer has 7*Ф14 buttons
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8
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Pilot Bit
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D6=138mm L6=66.5mm
Gauge button: 8*Ф16
Face button:8*Ф14
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