Wholesale API rotary rollercones drilling bits in the stock from China factory is for deep petroleum well drilling Bit Description: IADC: 537 - TCI journal sealed bearing bit with gauge protection for soft to medium soft formations with low compressive strength . Compressive Strength: 85 - 100 MPA 12,000 - 14,500 PSI Ground Description: Medium hard and abrasive rocks such as sandstones with streaks of quartz, hard limestone or chert, hematite ores, hard, well-compacted abrasive rock such as: sandstones with quartz binder, dolomites, quartzite shales, magma and metamorphic coarse grained rocks. We can offer TCI bits in avariety of sizes (from 3 3/8" to 26") and all most of IADC codes.
Far Eastern Drilling is a professional TCI tricone bits factory in China, we producein lines of API standard,both the materials and machining processes are guaranteed. Far Eastern Drilling has more referenced letters from customers of many countries in worldwide which supportsus participate tenders and bring confidence to clients. The rotary drill bits is working with rotary drill stem and mud pump,drilling stem makes pressure and rotation on rotary drilling bits,mud pump circulate mud to bring rock chips to ground. The best solutions will be provided accoring to drilling depth,rock hardness,buget,etc.| Basical Specification | |
| Size of Rock Bit | 6 3/4 inches |
| 171.4 mm | |
| Bit Type | TCI Tricone Bit |
| API Thread | 3 1/2 API REG PIN |
| IADC Code | IADC 537G |
| Bearing Type | Journal Sealed Bearing with Gauge Protection |
| Bearing Seal | Elastomer or Rubber/ Metal |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Drilling Condition | Rotary drilling,high temp drilling,deep drilling,motor drilling |
| Nozzles | Central Jet Hole |
| Operating Parameters | |
| WOB (Weight On Bit) | 17,976-38,423 lbs |
| 80-171KN | |
| RPM(r/min) | 50~220 |
| Formation | Low compressive strength,medium hard formation with hard abrasive inter layer,like hard shale,anhydrite,soft limestone,sandstone,dolomite with mezzanine,etc. |
