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Rotary Bit

2011-e

Volgaburmash (VBM) Roller Cone Bits - Tricone

Volgaburmash, JSC and Uralburmash, JSC manufacture over 1000 roller cone bit designs for oil and gas industry ranging from 95.3 mm (3-3/4") to 660 mm (26") with milled teeth and tungsten carbide inserts. 

Volgaburmash-1
Volgaburmash-2

Production Facility:

VBM's production facilities are equipped with the most advanced multi-axis machining centers, furnaces, heat-treatment machines, welding and hard-facing units purchased from the world’s leading producers. State of the art equipment enables them to master new bit designs in the shortest time and provide products quality conformance with the international standards.

All products undergo quality control at each manufacturing stage. Since 1997, Volgaburmash, JSC has implemented certified Quality Management System according to ISO standards and API Q1 specification. Volgaburmash, JSC also has implemented and certified environment management system and health and safety management system according to the requirements of ISO 14001:2004 and OHSAS 18001:2007.

Design Features:

  • Side air flushing
  • Single Gauge
  • Leg protection with TCI for AirStandart lines
  • Leg protection with TCI for AirPro and AirJet lines
  • Leg protection with TCI for AirPro and AirJet lines
  • Type of inserts: Chisel Inserts, Conical Inserts and Other shape inserts 
  • Cuttings protection system in bit bearings
    • In a mining roller cone bit, the air flow passes through the bearing for cooling and cleaning the bearings.
      • There is a valve unit inside the bit Shank. It consists of a seat with elastic circular ledge, a valve washer, a cup and a spring. To fix the valve unit, a snap ring is mounted inside the pin. To prevent cuttings getting into bit bearings, filters are located at the inlet of the cooling system. 
      • The valve unit of a drill bit functions as follows: While drilling, the air flows into the bit shank, the valve washer is moved down by the air inside the shank cavity allowing the air to flow downhole through the slots in the cup and through nozzles and bearing air passages.
      • Image of "Cooling and cleaning" and "Open Valve"

AirPro

 

These premium bits with sealed bearings are designed for drilling blast holes, flushing with air or water-air mixture. The bits of this line use journal bearing. They show high performance due to the seal, high-reliability bearing elements, cutting structure and bit body protection; this allows to achieve high performance results, especially in water-flooded wells. Bit diameter ranges from 8-1/2" - 12-1/4".

AirJet

These bits with open bearings and side flushing with air or water-air mixture are designed for drilling blast holes. The bits of this line can have either journal bearings (bits ranging from 5-1/8" to 6-1/4") or roller bearings (bits ranging from 6-1/4" - 15-1/2"). They show high performance due to high-reliability bearing elements, cutting structure and bit body protection. 

AirStandart

These bits with open bearings and central flushing with air or water-air mixture are designed for drilling blast holes. The bits of this line can have either journal bearings (bits ranging from 5-1/8" to 6-1/4") or roller bearings (bits ranging from 6-1/4" to 15-1/2").