|
钻井参数 |
in |
7 7/8 |
mm |
200.0mm |
REG.PIN.API |
4 1/2 |
IADC |
637 |
Formation |
Hard formations |
Rotary Speed(rpm) |
80-40 |
Weight on Bit(KN/MM) |
0.5-1.2 |
N.W./G.W.(KG) |
30/32 |