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8 1/2″ S1665FG S423

Category:

Steel Body PDC Bit

8 1/2″— 8 3/4″

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Product details

Nomenclature of RUISHI Steel Body PDC Bit Model

S 19 5 5 X

Steel 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 6
Primary Cutter Size(mm) 16
Nozzle Qty 8
Gauge Length 2"-3.5"
Connection 4-1/2"API REG

 

RECOMMENDED PARAMETERS

Rotary Speed(rpm) 60-250
Weight On Bit(KN) 10-100
Flow Rate(lps) 25-36

 

Trait: additional row、6 blades、8 water holes

 

Suitable for medium hard formations with high compressive strength and abrasiveness

   Limestone、anhydrite、dolomite、sandstone…

 

Add limiting cutter to the inner cone

   Better control the depth of bit into the formations when drilling
   Avoid early wear of PDC cutters

 

Adopting PDC cutters to strengthen the gauge

   Reduce the wear of rock to gauge
   Increase wear resistance、stability and life of the gauge

 

Optimize water conservancy structure

   Design of bottom hole flow field、accelerate the chip removal and reduce the mud bugs

 

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To: Hebei Ruishi Bits Manufacturing Co.,Ltd

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