Roller-cone bits
Bit designs, equipment, production processes and quality control system fully complies with the requirements of API Q1 and ISO 9001 standards
We can offer the widest range of designs to solve problems of any complexity
Each design embodies many years of design and manufacturing experience, the most stringent acceptance testing criteria
Preview
“BURINTEKH”, Ltd tri-cone bits provide the highest level of reliability and performance. Each design embodies many years of design and manufacturing experience, the most stringent acceptance testing criteria and multiple tests in field conditions. We can offer the widest range of designs to solve problems of any complexity.
Tri-cone bits with steel cutting structure for high performance drilling
Milled tooth bits are designed for drilling intervals with maximum performance.
Tri -cone bits with carbide cutting structure for drilling in rocks with high abrasiveness and high hardness
These bits are designed for high performance drilling long intervals characterized by maximum abrasiveness and increased hardness.
Tri -cone bits for directional and horizontal drilling
These bits are designed for drilling complex trajectory well, horizontal wells and for drilling with high dogleg severity.
Tri -cone bits for sidetracking, workover and completion
Bits of this type are specially designed for performing complicated sidetracking and drilling long horizontal intervals.
Single cone bits of small diameter for special well operations
The bits of this line are specially designed to perform special operations during well maintenance and workover. They are a universal tool for mechanical cleaning of the in-line space.
Single cone bits of small diameter for special well operations
The bits of this line are specially designed to perform special operations during well maintenance and workover. They are a universal tool for mechanical cleaning of the in-line space.
Roller reamers for reaming the wellbore
Roller reamers are designed to ream the wellbore with simultaneous drilling with a pilot bit.
Roller calibrators with interchangeable sections
Roller calibrators with interchangeable sections are designed for use as part of a drill string to reduce friction torque and vibration loads when the drill string contacts the borehole wall.
Characteristics
Bearing
Journal bearing made with the use of anti-friction, "floating" elements made of a special material having a low coefficient of friction able to withstand high revolutions and loads. Sealing unit rings of which are made of wear-resistant rubber compound HNBR reliably protect the entire design of journal. By means of patented assembly system all journals are assembled with optimally calculated clearances which allow equally loading all 3 sections of the bit.
Roller bearing is designed in such a way that roller saddle is located in the bit cone. This made possible to maximize the size of bearing which in turn allows withstanding increased axial loads and high bit rotational speeds. By means of unique manufacturing techniques, all clearances in the bearing are minimized. Guaranteed repeatability accuracy in the manufacture of bearings is essential for steady operation of bits.
Shape of carbide teeth
For the most effective cutting structure operation the widest range of various geometrical shapes of carbide inserts is needed - the mains elements that perform rock destruction. BURINTEKH roller-cone bits use all the variety of inserts, including own designed geometry.
Option
OPTION "H"
Additional protection of cones with carbide inserts
Application
High abrasive rocks with the risk of increased cones wear
Advantages
Carbide inserts of a special shape located on the cones protect cones from undestroyed rocks and reduce abrasive wear.
OPTION "K"
Conical shape of tooth
Application
Tightly agglomerated rocks of high hardness and abrasiveness, drilling intervals where there is a high risk of shock loads on the bit
Advantages
Inserts with a special conical shape are more wear and shock resistant compared to teeth of a different shape. The possibility of drilling long both in time and length intervals with minimal wear and tear.
OPTION "G"
Inserts on reaming gage.
Application
Bit protection against gage loss.
Advantages
БDue to wear resistant shape and abrasion resistant alloy inserts of this type significantly increase gage loss resistance.
OPTION "B"
Additional (gage) inserts row
Application
Improving cutting structure wear resistance.
Advantages
Gage loss wear resistance increase, gage rows protection
OPTION "T"
Cone hardfacing
Application
Protection of cones from aggressive abrasive environment as well as prevention of washout and subsequent fall out of carbide inserts from the cone.
Advantages
Tungsten carbide coating applied by HVOF method can significantly reduce the effect of abrasive particles on cones wear thus extending lifetime of cutting structure and bits.
OPTION "GD" "GD1" "GD2"
Reaming gage reinforced with diamond coating (100%, 50%, 33%).
Application
Protection of the bit against gage loss in difficult geological conditions.
Advantages
Reinforced with synthetic diamond coating inserts significantly increase the resistance of bit to gage loss when operating in abrasive rocks.
OPTION "D" "D1" "D2"
Diamond inserts reinforcement (33%, 66%, 100%)
Application
Drilling wells with high efficiency in difficult geological conditions.
Advantages
Reinforced with synthetic diamond coating profiled inserts in gage row significantly increase the resistance of cutting structure in difficult geological conditions
OPTION "DD"
All cutting structure is reinforced with diamond coating
Application
High efficiency drilling in high-abrasive rocks.
Advantages
High bit and cutting structure stability at high performance drilling.
OPTION "S"
Shirttail is reinforced with carbide inserts.
Application
Protection of the bit against gage loss in directional and horizontal drilling.
Advantages
Carbide inserts significantly increase the resistance of the bit to gage loss when drilling directional and horizontal wells.
OPTION "SD"
Shirttail is reinforced with diamond coated inserts
Application
Directional drilling with high reliability in difficult geological conditions.
Advantages
Reinforced with synthetic diamond coating inserts located on the shirttail significantly increase durability of the entire bit when drilling long intervals in difficult geological conditions and high abrasive tocks
OPTION "L"
Arm forging is specially designed to create the effect of six-point stabilization of the bit.
Application
Protection of the bit against vibration loads during directional and horizontal drilling.
Advantages
Arm configuration allows maximum stabilizing the bit in the well which reduces harmful vibration loads both on cutting structure and bearing prolonging the lifetime of the bit and increasing its efficiency.
OPTION "J"
Central jet.
Application
For drilling in very soft and medium-soft rocks with low compressive strength, as well as for drilling large diameter wells.
Advantages
The presence of a central jet helps preventing balling, improves cleaning of the bottomhole zone and increases the rate of penetration.
OPTION "J+"
Additional flushing holes in the bit body.
Application
Improved cleaning of large bits when drilling rocks prone to adhesion and balling.
Advantages
Additional flushing holes located in the body of the bit help improving cleaning of cutting structure thus increasing the efficiency of its performance.
OPTION "E"
Elongated side jets
Application
Drilling of hard high abrasive rocks.
Advantages
Elongated lateral jets improve cuttings transportation reducing the likelihood of re-drilling thus increasing the efficiency of cutting structure and rate of penetration.
Variants of nozzles
Central jet
Series PZ
Central jet unit includes a carbide threaded nozzle PZ series and two sealing rings that reliably protect the assembly from erosion both from cutting structure and pin
Side nozzle
Series H2
The composition of the side nozzle unit includes the carbide nozzle H2 series, sealing ring, the fastening is provided with expansion C-ring.
Side nozzle
Series H3
The composition of the side nozzle unit includes the carbide nozzle H3 series, sealing ring, the fastening is provided either by thread locker or expansion C-ring.
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Type |
Bit diameter |
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120,6 - 127,0 |
139,7 - 155,6 |
190,5 - 222,3 |
295,3 - 311,1 |
393,7 - 660,4 |
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|
Type Н2 |
+ |
+ |
- |
- |
- |
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Type Н3 |
- |
- |
+ |
+ |
+ |
|
Type Pz |
- |
+ |
+ |
+ |
+ |
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