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Introduction:
There are two sealing methods,sealed with O shape rubber rings or sealed with metal rings.The former adapts to conventional drill holes, the latter adapts to drill holes with high temperature and high speed.
Adopting friction balls to fasten cones, safe and reliable.
Buildup welding of wearing-resistant alloy at sliding surfaces of the head bearings to improve bearing capacity.
Inlay welding of copper alloy and silver-plated at sliding surfaces of cone bearings to strengthen self-lubricating effects,and improve anti-snapping ability.
HENGJI BIT SPEC | IADC CODE 537 | |
Diameter | 171/2"(444.5mm) | |
Tooth Type | TCI | |
Bearing Type | Elastomer sealed bearing | |
Circulation Type | Mud fluid | |
Thread Connection | 7 5/8API REG PIN | |
Nozzle | three jet nozzles | |
Gauge Protection | Available | |
Shirttail Protection | Available | |
Operating Parameters | ||
RPM(r/min) | 120~50 | |
WOB(KN) | 0.45~1.0 | |
Formations | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. | |
Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
Introduction:
There are two sealing methods,sealed with O shape rubber rings or sealed with metal rings.The former adapts to conventional drill holes, the latter adapts to drill holes with high temperature and high speed.
Adopting friction balls to fasten cones, safe and reliable.
Buildup welding of wearing-resistant alloy at sliding surfaces of the head bearings to improve bearing capacity.
Inlay welding of copper alloy and silver-plated at sliding surfaces of cone bearings to strengthen self-lubricating effects,and improve anti-snapping ability.
HENGJI BIT SPEC | IADC CODE 537 | |
Diameter | 171/2"(444.5mm) | |
Tooth Type | TCI | |
Bearing Type | Elastomer sealed bearing | |
Circulation Type | Mud fluid | |
Thread Connection | 7 5/8API REG PIN | |
Nozzle | three jet nozzles | |
Gauge Protection | Available | |
Shirttail Protection | Available | |
Operating Parameters | ||
RPM(r/min) | 120~50 | |
WOB(KN) | 0.45~1.0 | |
Formations | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. | |
Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
