Model: | - |
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Brand: | GREAT |
Origin: | Made In China |
Category: | Electronics & Electricity / Other Electrical & Electronic |
Label: | under reamers drill |
Price: |
US $1000
/ Piece
|
Min. Order: | 1 Piece |
Bi-center bit for Mining Machinery and abrasive formation
Overview of Bi-center Bit
This type of Bi-center bit mainly used for medium to medium-hard compressive and abrasive formation, it has medium and high-density parabolic crown and heavy cutters density for the bit has good impact resistance and anti-abrasive, high wear-resistant diamond gauge, the bit has a longer service life.
In directional applications, Bi-centre drill bit performance usually presents perfect in terms of efficiency versus power availability and dynamic issues.
Great Drill Bits designed the bi-center bit to enlarge the wellbore diameter, to replace under reaming, to help control rouble zones and for expandable tubular.
The Details of Bi-center Bit
The Specification of Bi-center Bit
Reaming Size |
12 1/4" |
Nozzle Qty |
3NZ |
Pass Thru Size |
10 1/2" |
Gauge Lenghth |
2.5" |
Blade |
5 |
Connection |
6 5/8" API REG |
Primary Cutter Size |
16mm |
Make up Torque(kN.m) |
51.7 ~ 56.9 |
Rotary Speed(rpm) |
60 ~ 260 |
Weight on Bit(KN) |
30 ~ 260 |
Max.WOB (CN) |
180 |
Flow Rate(lps) |
35 ~ 70 |
The Advantage of Bi-center Bit
Our Bi-center bit is one piece body, you will never worry broken.
We can adjust the bi-center diameter according to your casing diameter. Generally speaking, the bigger pilot bit has smaller reaming size. The smaller pilot bit has a bigger reaming size.
GREAT's casing protection features cutting structure that provides a reliable way to drill, protecting both the cutting structure inside the casing and the casing itself.
During the design process, the pilot and reamer cutting structure are force balanced as a single unit. This provides increased drilling efficiencies in both vertical and deviated wells.
Payment Terms: | L/C, T/T, D/P, Paypal, Money Gram, Western Union |
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Cangzhou Great Drill Bits Co.,Ltd. | |
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Country/Region: | He Bei - China |
Business Nature: | Manufacturer |
Phone: | 1769999 |
Contact: | Weiwei Wang (sales) |
Last Online: | 20 May, 2021 |