tungsten carbide scrap single rock api 6" steel/milled tooth tricone bits
BasicalParameter |
|
Bit Size |
6"(152.4MM) |
IADC Code |
127 |
Connection |
3 1/2"API reg pin |
Rotary Speed(rpm) |
180~80 |
Weight on Bit(KN/MM) |
|
Formation |
Medium formation with high compressive strength ,such as medium soft shale,medium softlimestone,medium soft sandstone,medium formation with harder and abrasive interbeds,etc. |
IADC |
Rock formation |
WOB (KN/mm) |
WOB (KN/mm) |
116/117 |
Low compressive strength, high drill-ability and extremely soft formation, like soft shale, clay, conglomerate etc. |
180~80 |
|
126/127 |
Low compressive strength, high drill-ability and soft formation, like shale, clay, soft limestone, salt rock, etc. |
180~80 |
|
136/137 |
Soft to medium soft with low compressive strength or soft with hard interlayer, like anhydrite, soft limestone,sandstone, etc. |
130~60 |
|
216/217 |
Medium hard formation with relatively high compressive strength and hard interlayer, like hard shale, sandstone, limestone, etc. |
100~50 |
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