Use: | Well Drilling |
---|---|
Material: | Tungsten Carbide |
Type: | Indexable Drill Bit |
Model Number: | Great |
Brand Name: | Great |
Place of Origin: | China (Mainland) |
Size: | 12 1/ 4" |
IADC CODE: | 517/537 |
Color: | Blue |
Advantage: | High Performance |
Formation: | Medium Soft |
Quality: | Famous Brand |
Quick Details
Specifications
Gauge Structure
The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail,
strengthened spear point will enhance the gauge protection.
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.
Product Predominance
It can absorb high WOB in the conventional drilling. It is for various formations drilling by matching
different teeth shape, teeth density and cutting exposure structure.