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25-
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Detailed Description
Diamond compact PDC bit
Diamond compact (PDC) is under the condition of high temperature, by artificial diamond and carbide synthesis of special one-time superhard material, it not only has the advantages of diamond high hardness, wear resistance, but also has the carbide great impact resistance is strong, the blade, for it as a bit of blade can greatly improve the working efficiency of the bit, is the ideal of hard rock and hard rock drilling bit. This series of diamond PDC drill bit, the body is made of high quality steel products calcined pressure forming, through to increase the mechanical properties of the vacuum automatic heat treatment equipment. Ordinary domestic compact high quality blade, super model using the American GE company's blade, according to the geological conditions of different choose corresponding quality level, can achieve higher product cost performance, energy-saving and efficient economic indicators.
Type high strength diamond bit blade using the latest development of ball type diamond blade, characterized by drilling speed, impact resistant ability. When bit drilling, his lips for normal homogeneous formation rock flaking, highlights can inhibit the bit gap when encountered in the process of drilling moment greatly footage, greatly reduces the bit of accidental damage, improve the response to the drilling of complex strata. Best to adapt to the rock and drilling program parameters see table below:
line number Type Apply to rock
1 Common PDC bit F<10Hard rock in soft -
2 Strengthen the PDC bit F=10－12 hard rock
3 High strength PDC bit F<18 hard rock
Diamond compact (PDC) bit drilling program suggested parameter list
line number Type bit pressure（Kg） revolving speed（rpm） Pump output（1/min）
1 Ф28 300—700 300—350 150—200
2 Ф30 300—700 300—350 150—200
3 Φ32 300—700 300—350 150—200
4 Φ48 300—700 300—350 120—160
5 Φ56 320—800 250—350 130—180
6 Φ75 480—1200 200—300 150—200
7 Φ94 640—1600 150—250 200—250
8 Φ110 880—2200 120—200 200—300
9 Φ152 1500—3000 100—200 500—850
10 Φ190 1800—4000 100—200 600—1200
11 Φ230 2200—4500 100—200 750—1400
12 Φ270 2400－5000 100—200 1000－1500
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