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8 1/2″ CHUAN8-3 CORE BIT

Category:

Core and combined bit

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Product details

Nomenclature of RUlSHI Core and combined bit Model

S 19 5 5 X
S:
Steel Body PDC Bit
M:
Matrix Body PDC Bit
Cutter Size
19:
diameter 19mm
16:
diameter 16mm
13:
diameter 13mm
Blade Count 
3、4、5、6... 
Formation
from soft to hard
1-7
Design Characters
J/A J Series
X Sprial Gauge
C Sidetracking Bit
Q Core Bit
B Bi-center Bit
F Row Cutters
G Advanced Cutters

 

BITS SPECIFICATIONS

Size 8 1/2"
Number of blade 10
Primary Cutter Size(mm) 16
TFA(in2 0.5-1.2
Gauge Length 1.5"
Connection 4-1/2" API REG

 

RECOMMENDED PARAMETERS

Rotary Speed(rpm) 60-250
Weight On Bit(KN) 23-70
Flow Rate(lps) 11-20

 

Trait:curved crown、10 blades、core

 

Suitable for coring in medium soft formations

   Soft shale、limestone、mudstone…

 

Arc-shaped crown design

   Blade arrangement standard PDC cutters、reatly improve the cutting footage ability of the bit

 

Design of the balance of the binding force of the tooth arrangement

   Improve bit coring rate

 

The water channel optimization design

   Fully clean and cool the bit

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To: Hebei Ruishi Bits Manufacturing Co.,Ltd

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