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JianShi (China) Drilling Tools Co., Ltd.
4 Years
| Ask Lasest Price | |
| Brand Name : | JSBIT |
| Model Number : | 216mm tricone roller bit |
| Certification : | API and ISO standard |
| Price : | bargain |
| Payment Terms : | Western Union, T/T |
| Supply Ability : | 500PCS /month |
| Delivery Time : | 1 days |
8. 5inch 215.9mm IADC537 Tricone Rock Bit For Water Oil Well Drilling
1)Rubber sealed Bearing Structure
High precision journal bearing with two thrust faces. Ball locked
cone. Hardfaced head bearing surface. Cone bearing inlaid with
friction reducing alloy and then silver-plated. Abrasion resistance
and seizure resistance of the bearing are improved.
Seal and Lubrication
The bearing seal is adapting the high quality HNBR O-ring. The best
seal compression and the radial seal structure can enhance the seal
performance. The compensation system and the high quality bit
grease can limit pressure differential, and greatly increase the
lubricating reliability.
2)Metal Sealed Bearing Bit
Bearing Structure
High precision journal bearing with two thrust faces. Ball locked
cone. Hardfaced head bearing surface. Cone bearing inlaid with
friction reducing alloy and then silver-plated. Abrasion resistance
and seizure resistance of the bearing are improved, and suitable
for high rotary speed.
Seal and Lubrication
The advanced metal seal package is composed by two metal seals and
two elastic rubber energiners. The energizer and back-up ring will
support the pushing force to make the two metal faces tightly
contact. In the drilling, the metal seals are relevant moving, and
the energizers are static. This will increase the bearing seal
reliability and durability. The compensation system and the high
quality bit grease can limit pressure differential, and greatly
increase the lubricating reliability.
3) rubber seal bearing Bit
Air cooling roller bearing package.Balls lock the cone,which
reduces the probability of cone-dropping to minimum.
| IADC | Recommended parameters | Applicable strata | |
| WOB KN/mm | Rotating speed r/min | ||
| 116,117 | 0.35-0.8 | 150-80 | Extremely soft formations with high compressive strength and drillability, such as clay, mudstone, chalk |
| 126,127 | 0.35-0.9 | 150-70 | Soft formations with high compressive strength and drillability, such as mudstone, gypsum, salt rock, soft shale, soft limestone |
| 136,137 | 0.35-1.0 | 120-60 | Soft to medium-soft formations with high compressive strength and high drillability, such as medium-soft shale, anhydrite, medium-soft limestone, medium-soft sandstone and soft formations with hard interlayers |
| 216,217 | 0.4-1.0 | 100-60 | Soft to medium formations with compressive strength, such as soft shale, medium soft limestone, medium soft sandstone and soft formations with hard interlayers |
| 246,247 | 0.4-1.0 | 80-50 | Medium-hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite |
| 417,437,447 | 0.35-0.9 | 150-70 | Very soft formations with high compressive strength and drillability, such as clay, mudstone, chalk, gypsum, salt rock, soft shale, soft limestone |
| 517,527 | 0.35-1.0 | 140-60 | Soft formations with high compressive strength, such as mudstone, gypsum, salt rock, soft shale, soft limestone |
| 537,547 | 0.45-1.0 | 120-50 | Soft to medium formations with compressive strength, such as medium-soft shale, medium-soft limestone, medium-soft sandstone and medium formations with effective hard abrasive interlayers |
| 617,627 | 0.45-1.1 | 90-50 | Medium-hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite |
| 637 | 0.5-1.2 | 80-40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite and anhydrite, marble |
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