Wear Resistant Roller Cone Bits For Underbalanced Drilling
Conditions
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Tricone bit Cutting Structure
The durability of premium tungsten carbide inserts is improved with
new formulas and new techniques for insert bit.
2. Tricone bit Gauge Structure
Multiple gauge protection with gauge trimmers on heel and gauge
inserts on the gauge surface of the cone, tungsten carbide inserts
and hardfacing on the shirttail increases gauge holding capability
and bearing life.
3. Tricone bit Sealed Bearing Structure and Lubrication
High precision bearing with two thrust faces. Balls lock the
cone.Hardface heard bearing surface. Cone bearing inlaid with
friction-reducing alloy. Abrasion resistance and seizure resistance
of the bearing are improved and suitable for high rotary speed.
Grease compensator to maintain pressure inside the bearing and
improve lubrication.
4. Tricone bit Sealed Bearing Structure
API standard threads are turned with precision machining making
them concentric to the gage rows for uniform loading on bearings.
CUTTING SELECTION GUIDE
MPa | 0 | 70 | 140 | 210 | 276 | 345 | 411 | 485 | 552 | 620 | 690 |
Ksi | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
IADC435 | | √ | √ | | | | | | | | |
IADC535 | | | √ | √ | √ | √ | | | | | |
IADC545 | | | √ | √ | √ | √ | | | | | |
IADC635 | | | | | √ | √ | √ | √ | | | |
IADC645 | | | | | √ | √ | √ | √ | | | |
IADC725 | | | | | | | √ | √ | √ | √ | |
IADC735 | | | | | | | √ | √ | √ | √ | |
IADC745 | | | | | | | √ | √ | √ | √ | |
IADC835 | | | | | | | | | √ | √ | √ |
IADC 6 Series Bits, Medium to Medium-Hard Formation
Application: For use in moderately abrasive consolidated formations with
compressive strength ranging between 140 – 485 Mpa such as hard
limestone, quartzite, granodiorite, and medium grade metamorphic
formations
Cutting structure: These bits are characterized by moderately spaced conical inserts
with medium projection. This configuration promotes good
penetration rates in medium hard and moderately abrasive
formations. Smaller carbide inserts are provided on the gage and
inner rows or hard metal is deposited in the nose area to contain
shell erosion and improve performance.
- Compression Strength: 20,000 – 70,000 psi
- Drilling Speeds: 60 – 100 rpm
- Jet Circulation: All sizes
- Weight on Bit (WOB): 2,500 – 7,000 lbs/in of bit diameter
Quality Control
In manufacturing, each process goes through an extensive and
painstaking testing ,
quality control is a process that ensures customers receive
products free from defects and meet their needs.
1, Raw material selection:To make a good drill bit, it is necessary
to select the best material and gatekeeping the quality of the
material. We purchase the high-quality steel and strictly control
the material composition and size, it main includes the detection
of the shape, diameter, reamed diameter, length composition, and
flaw of the raw material, Tungsten Carbide and Grease are also the
best raw materials on the market.Besides, we marked every different
piece of materials before transferred to the warehouse.
2, In strict accordance with the ISO9001 international standards
for production.
Carefully control every step of the production, complete each of
the production process,
the production process is including blanking, forging, rough
turning, heat treatment,fine turning, quenching, assembling,
welding, painting, then storage.
Each working process was full inspected, after the qualification,
then move to next working process, which to ensure the 100%
qualified rate.
3, Sampling observation, numbered, packing and arrange the
shipment.
Don’t see the bit you are looking for? Give us a call, we can
customize any bit to fit your unique circumstances.