Wholesale API rotary tricone drill bits in the stock from China factory for deep oil well. Bit Description: IADC: 617 - TCI journal sealed bearing bit with gauge protection for medium hard formations with high 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.
1. 5 5/8" is a regular size ,we also called 142mm or 143mm, the thread connection is 3 1/2 reg pin.it will be used for deep well drilling like oil and gas well drilling, and it is also a regular size in horizontal directional pilot hole drilling. 2.We have two types of tricone bit according to grades of bearing , one is Elastomer sealed bearing with normal quality and price, another is Metal-face sealed bearing with higher performance and price. 3.For very deep well drilling, we recommend Metal-face sealed bearing tricone bits in drilling depth exceeds 1000 meters, for hard rock and long distance trenchless pilot hole drilling that length exceeds 300 meters we also recommend metal-face sealed bearing tricone bits. 4.For water well drilling, shallow well drilling or shorter distance trenchless pilot hole drilling projects, elastomer(rubber) sealed bearing tricone bits has better cost performance.| Basical Specification | |
| Size of Rock Bit | 5 5/8 inches |
| 142mm/143mm | |
| Bit Type | TCI Tricone Bit |
| Thread Connection | 3 1/2 API REG PIN |
| IADC Code | IADC 617G |
| 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) | 14,381-31,907 lbs |
| 64-142KN | |
| RPM(r/min) | 50~90 |
| Formation | Medium formation with low compressive strength,such as medium,soft shale,medium soft limestone,medium soft limestone,medium soft sandstone, medium formation with harder and abrasive interbeds,etc. |
