Steel Tooth Tricone Bit
Keywords：
Tricone bit
Classification：
ProductDetail
Introduction
2. Application: Suitable for oil, natural gas, geothermal industrial and water well drilling, HDD projects, etc.
3. Unique steel tooth structure effectively improving the wearing resistance of the teeth and greatly increasing the rate of penetration.
4. Gauge protection structure：Enhanced gauge protection with hardfacing on the shirttail, strengthened leg with special insert tungsten carbide.
5. Bearing structure:High precision journal bearing,hardfaced bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated,made the rotating more stability, safety and durability.
Selection guide
| IADC | Normal WOB kn/mm(bit dia.) |
Rotary Speed (rpm) | Application formation |
| 116 | 0.35~0.90 | 150~80 |
Very soft with low compressive strength and high drillability,such as shale,clay,and salt bed,etc |
| 117 | 0.35~0.90 | 150~80 |
Very soft with low compressive strength and high drillability,such as shale,clay,and salt bed,etc |
| 126 | 0.35~1.00 | 150~70 |
Soft with low compressive strength and high drillability,such as shale,clay,salt bed and soft limestone,etc. |
| 127 | 0.35~1.00 | 150~70 |
Soft with low compressive strength and high drillability,such as shale,clay,salt bed and soft limestone,etc. |
| 136 | 0.35~1.05 | 120~60 |
Soft to medium soft with low compressive strength or soft with harder stringers,such as hard gypsolyte,soft limestone and sandstone,etc. |
| 137 | 0.35~1.05 | 120~60 |
Soft to medium soft with low compressive strength or soft with harder stringers,such as hard gypsolyte,soft limestone and sandstone,etc. |
| 216 | 0.50~1.20 | 90~50 |
Medium hard with relatively higher compressive strength and hard stringers,such as hard shale,sandstone and limestone,etc. |
| 217 | 0.50~1.20 | 100~50 |
Medium hard with relatively higher compressive strength and hard stringers,such as hard shale,sandstone and limestone,etc. |
| 317 | 0.70~1.30 | 80~45 |
Medium hard with high compressive strength and abrasiveness,such as limestone,dolomite,sandstone and chert,etc. |
| 337 | 0.80~1.40 | 75~45 |
Hard formation with high abrasiveness,such as hard limestone,dolomite,hard sandstone and chert,etc. |
| Note:The upper limits of WOB and RPM recommended in above table should not be used simultaneously. | |||
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Junziguan Villiage, Xicun Township, Hejian City, Hebei Province,China
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