8 1/2" Tricone Roller Cone Bits For Oil Well Drilling

Roller Cone Bit Tricone Bit Used For Oil Well Drilling

Introduction
Cutting structure
In response to the characteristics of different cutting effects of blades in different areas on the cone, the conical blade is placed in the permanent contact area and the wedge blade is placed in the alternative contact area, thereby greatly improving the drilling efficiency. By placing the diamond blade in the permanent contact area of the cone of the severely worn blade, the wear resistance of the cutting structure can be enhanced. A tungsten carbide blade is placed on the top surface of the cone to protect the cone from abrasion.
Gauge Structure
With active cutting gauge protection inserts on bit body, the bit has good gauge protection and up drill capability.
Bearing Structure
High precision journal bearing. 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. Compared with three cone bit, the leg bearing is bigger, so it can receive higher WOB and high reliability.
Hydraulic Design
Small angled watercourse design increased the shirttail thickness and can effectively prevent the watercourse erosion.Optirnized hydraulics structure improves the clearing capability and increases ROP.
Product Application
It is suitable for sidetracking, deep well drilling and old well repairing.


Features
Through the specific structure of the cone, equal wear of the pressure block in the permanent contact area and the replacement contact area of the drill bit is realized.
By setting the PDC tool in the permanent contact area of the cone (where the pressure block is most easily worn), the wear resistance of the cutting structure can be enhanced.
Optimized hydraulics structure improved the cleaning ability of hydraulic system on cone and bottom hole,and assure higher ROP.
The bit has excellent gage protection and up reaming abilities by setting active cutting conical spherical gage compacts on head body.


Advantages
1. Its application field is wide, not only suitable for side drilling, and can be apply to deep well.
2. Work torque is lower than PDC bit in the same drilling pressure and formation condition. It can reduce the small size hole expansion buckling problems, so that avoid down hole accidents.
3. It is more suitable for large plastic formation than three cone bit, also can be applied to hard interlayer which PDC bit can not deal with other complex formation.
4. It can realize high speed and special drilling with down hole motor.


Product parameters

Used in
Single cone bit is a kind of deceleration bit, which is the speed of cone is smaller than the speed of drill, mainly disorderly cutting broken rock. It is suitable for old well sidetracking and deepening the slim hole drilling operation under high rotary speed and drilling pressure.


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FAQ:

1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.

2. How about the common packing?
A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.

3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.

4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.

5. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.

6. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.

7. Competitive price:
A: Our factory can supply you the lowest price due to direct sale to customers without distributor!