ST tricone bit manufacture

name

ST tricone bit manufacture

IADC code

127

Bit size

10 5/8” (269.9mm)

Tooth type

Steel tooth

Thread connections

According to API Spec7-1 standard

Coon Pin

6 5/8" API. REG

Material

Tungsten carbide insert

Rotary speed

200~8 0 rpm

WOB

0.25~0.70 KN/mm

Cutting structure

The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit. The durability of premium tungsten inserts is improved with new formulas and new techniques for inserts bit.

Gauge structure

Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increase gauge holding capability and bearing life

Nozzles

3  nozzles

Multiple gauge protection

Yes

Product Application

It can suitable for various formations and achieves high RPM under low medium WOB applications

Industrial standard of China

SY/T5164

Quality management system

ISO 9001-2008

Formations

Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.

Bit weight

 70kg