Size | 12 1/4"(311.2mm) |
IADC | 537G |
Bearing Type | Elastomer sealed journal bearing |
Thread Connection | 6 5/8 reg pin |
WOB(KN/mm) | 0.45~1.0 |
RPM(r/min) | 120~50 |
Applicable Formations | medium to hard formations with low compressive strength, such as medium,soft shale, medium soft limestone, medium soft sandstone, medium formation withharder and abrasive interbeds, etc |
Circulation system | Mud pump |
Main Availability
Size | Bit Type | |
In. | mm | |
6 | 152.4 | 517G,, 537G, 617G,, 637G |
6 1/2 | 165.1 | 517G, 537G |
7 7/8 | 200.0 | 517G, 527G, 547GY, 617GY, 627G,,637GY |
8 1/2 | 215.9 | 437GK, 447GK, 517G, 537G, 617GY, 627G,637GY |
9 1/2 | 241.3 | 437G, 517G, 537G, 547G, 617GY |
9 5/8 | 244.5 | 437G, 517G, 537G, 547G, 617GY |
9 7/8 | 250.8 | 437G, 517G, 537G, 547G, 617GY |
12 1/4 | 311.1 | 437G, 517G, 537G, 617GY, 627G, 637GY |
17 1/2 | 444.5 | 517G, 537G, 617GY, 627G, 637GY |
