9-7/8 Inch outer diameter Tungsten Carbide Tooth Roller Tricone Mining Drilling Bits Rock Carbide Bit
Brand Name:ENG
Certification:API, AISI, ISO
Model Number:615
Minimum Order Quantity:1 piece
Delivery Time:8 WEEKS
Payment Terms:L/C, T/T, Western Union
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A131 Science & Technology Innovation Park ,Free Trade Zone, Zhangjiagang city ,Jiangsu Province ,China .
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Product Details
Tungsten Carbide Tooth Roller Tricone Mining Drilling Bits Rock Carbide Bit
- CUTTING STRUCTURE
- Conical & spherical on gage, conical on inner rows, with
auxiliary carbide protection.
Designed for high compressive strength, medium hard and abrasive formations, such as limestone, sandstone, interbedded dolomite.
Compressive strength: 23,000-30,000 psi/158-206 MPa - SHIRTTAIL PROTECTION
- Hard welding and wear resistant carbide protection on shirttail lip and lug
| Product Specifications | |
| Diameter | 9 7/8" 251mm |
| Bearing Type | Roller-Ball-Roller-Thrust Button/Sealed Bearing |
| Drilling cycle type | Jet Air |
| Connection thread ty | 6 5/8'' REG |
| Operation Parameters | |
| Rotary speed (r/min) | 60-100 r/min |
| Weight on Bit (KN) | 20.0T / 44,093 lbs MAX |
| Air Back Pressure | 29-58 psi/0.2-0.4 MPa |
The roller cone bit should be performed as follows:
1. The roller cone drill bit is activated near the well's bottom,
and the pump's displacement is gradually increased to the required
level.
2. The roller cone drill bit progressively increases the drilling
pressure after cleaning the well's bottom for a brief time.
3. Because the pump pressure rises as the roller cone drill bit's
drilling pressure rises, the change in pressure and the value of
the roller cone bit's drilling pressure must be managed within the
technical specifications.
4. To avoid sticking, the roller cone drill bit must be spun
slowly.
5. Place one bit of a salvage cup before putting roller cone drill
bit in the well, verify roller cone bit outer diameter wear and
other wear and tear, measurement of the outside diameter and usage
of the previous one in good condition, then the diamond type can go
in. Check the damage to the cutting teeth, a blockage in the water
eye, the outer diameter of the roller cone bit, whether the
drilling fluid meets the design specifications, and whether the
purified products are operating normally.
6. The roller cone drill bit is turned on and off in the same way
as a regular turntable at work. Some parameters of the roller cone
drill bit, such as speed, drilling speed, drilling pressure, and so
on, as well as some conditions of the drill bit equipment and data
from the exploration equipment, can be used to represent the
drilling situation.
7. When the roller cone drill bit operates, the difference in rock
chips directly reflects several conditions, such as changes in the
formation at the well's bottom, roller cone bit wear, drill bit
working condition, and parameter appropriateness. Poor support of
the roller cone drill bit, drilling into a broken formation, or the
roller cone drill bit being covered with mud are the main causes of
unstable pump pressure.
About Us
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FAQ
| Q: You are a trading company or manufacturer ? |
| A: Manufacturer, We are a 100% real factory with over 20 years' experience in water/oil/gas wells Drill Bits. |
| Q: How about your products ? |
| A : Both of tricone bits and PDC bits strictly conform to API 7 requirements and ISO9001. we will do kinds inspections before delivery, also cover for after-sales service. |
| Q: Package Methods ? |
| A: Normally wooden case, also can be steel box; can be customized if need. |
| Q: Payment Terms ? |
| A: we accept T/T, L/C, Paypal, Western Union, etc. |
| Q: Can I visit your factory ? |
| A: Yes, we welcome you to our factory all the time, will send invitation letters if need; also can show our workshop and warehouse online. |
9-7/8 Inch outer diameter Tungsten Carbide Tooth Roller Tricone Mining Drilling Bits Rock Carbide Bit
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