8-1/2” IADC 637
- Type: S3GYSX
- Diameter: 8-1/2”
- Bearing type:
- Cutting structure:
medium tungsten carbide inserts
- Legback protection:
shirttail hardfacing and tungsten carbide inserts
- Thread size and type:
pin 4-1/2 Reg
Rollers cone bits with cutting structure based on high-quality tungsten carbide inserts adapted to drilled formations in all applications. In our solutions, we use sealed and unsealed bearings depending on the customer’s conditions and preferences. To increase gauge protection, wear-resistant carbide inserts and hardfacing have been used. Optimised ROP is ensured by effective flushing of cutting structure and hole bottom. Sizes available: from 2-3 / 8” to 28” (711.2mm)
Exceptional drilling performance achieved by optimally selected cutting structure geometry in combination with effective flushing system.
Exceptional bit reliability thanks to top quality materials and optimized design of bearing system.
Guarantee of drilling long intervals while maintaining proper well geometry due to premium materials.
Designed for drilling in medium hard and abrasive rocks such as: sandstones with streaks of quartz, hard limestone or chert, conglomerates with limestone, ferruginous or silica binder, crystalline dolomites, hematite ores, siderites, limonites, hard shales.