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Help CenterPetrol Drilling Machine IADC637 Tci Drilll Bit Water Well Drilling Rig Price Quality Choice
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Petrol drilling machine IADC637 tci drilll bit water well drilling rig price
Hard rock drilling bits
1.Features of tci bits
1.Size:2 7/8" (70.0mm)~26" (660.4mm)
2.Cover all all IADC code
3.Reliable quality and best price
4.tungsten carbide insert tricone bit
5.certified by ISO,API
6.high efficiency
2.Advantages of tci bits
1.Suitable for medium to medium hard formation of high Crushing Resistance
(hard shale,sands,etc.)
2.Bit bearing is sealed roller/journal bearing.
3.Hardfacing is applied on the shirttail,and carbide inserts for gage protection
are pressed into the head OD.
4.Cone gage surface is reinforce with carbide compacts.
5. Partial top spoon shaped inner row of teeth, the wedge outer row of teeth is not equidistant
teeth, in the back cone tooth and the outer row of teeth between adds a row of trimming gear
6. High compressive strength, hard and abrasive high formation, such as limestone, dolomite,sandstone, chert and other
IADC |
WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
114/116/117 |
0.3~0.75 |
180~60 |
Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
124/126/127 |
0.3~0.85 |
180~60 |
Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
134/135/136/137 |
0.3~0.95 |
150~60 |
Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
214/215/216/217 |
0.35~0.95 |
150~60 |
Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
227 |
0.35~0.95 |
150~50 |
Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
|
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.
| |||
IADC |
WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
|
417/437/ 447/415/435 |
0.35~0.9 |
150~70 |
Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc. |
517/527/515 |
0.35~1.0 |
140~60 |
Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
537/547/535 |
0.45~1.0 |
120~50 |
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. |
617/615 |
0.45~1.1 |
90~50 |
Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
637/635 |
0.5~1.2 |
80~40 |
Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
3.details
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ZhongCheng Customers:
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