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Rotary drill bit
8 1/2'' 124
Rock Bit


Drill bit Parameters

Tri-cone bit type

8 1/2'' 124

Diameter

215.9mm

IADC

124

API Pin Connection

4 1/2'' API REG

WOB(KN/mm)

0.25~0.70

RPM(r/min)

200~80

Applicable Formation

Soft   with low compressive strength and high drillability, such as shale, clay,   salt bed and soft limestone, etc.

Features

High   footage and ROP under the conditions of medium low WOB and relatively high   RPM.

  Note:   the upper limits for the bit weight and rotary speed recommend in the table   can not be      used at the same time.




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Hubei Ou Rui Petroleum Machinery Equipment Co.,Ltd.
Hubei Ou Rui Petroleum Machinery Equipment Co.,Ltd.
Hubei Ou Rui Petroleum Machinery Equipment Co.,Ltd.
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