Roller cone bits
Three cone bit is an important tool for oil drilling, its work performance will directly affect the quality of drilling, drilling efficiency and drilling costs. Three cone bit design is based on practical experience, combined with the test method, repeated design and calculation, and thus low design accuracy, long cycle, it is difficult to improve the design quality, and each calculation can only design a drill, low efficiency.
Featured products
SKV Series Six-Point Position Stabilization Motor Bit
- Cutting Structure
- Gauge Structure
- Bearing Structure
- Seal and Lubrication
- Six-Point Position Stablization Structure
- Product Application
Current availability of Roller Cone Bits
Bit Size
|
Bit Type
| |||||||
in
|
mm
| |||||||
8 1/2
|
215.9
|
SKVT437G
|
SKVT447G
|
SKVT517G
|
SKVT527G
|
SKVT537G
|
SKVT547G
|
SKVT617G
|
9 1/2
|
241.3
|
SKVT437G
|
SKVT447G
|
SKVT517G
|
SKVT527G
|
SKVT537G
|
SKVT547G
|
SKVT617G
|
12 1/2
|
311.1
|
SKVT437G
|
SKVT447G
|
SKVT517G
|
SKVT527G
|
SKVT537G
|
SKVT547G
|
SKVT617G
|
Recommended Drilling Parameters
IADC
|
WOB
(kN/m)
(Bia Dia.)
|
RPM
(r/min)
|
Applicable Formations
|
433 477
|
0.35~0.9
|
240~70
|
Very soft formations with low comprehensive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft shale, soft limestone.ect
|
517 527
|
0.35~1.0
|
220~60
|
Soft formations with low comprehensive strength and high drillability.
such as, mudstone, gypsum, salt, soft shale, soft limestone. ect
|
537 547
|
0.45~1.0
|
220~50
|
Soft to medium formations with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone, medium information with harder and abRasiver interbeds, ect.
|
617
|
0.45~1.1
|
220~50
|
Medium formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite, ect.
|
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