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Tricone Rock Bit
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High Performance Oil Field Drill Bits 12 1/4" FA617G For Vertical Drilling

High Performance Oil Field Drill Bits 12 1/4" FA617G For Vertical Drilling

Brand Name: FLRT
Model Number: 12 1/4" FA617G
MOQ: 20pcs
Supply Ability: 300pcs per quarter
Detail Information
Place of Origin:
China
Certification:
API-7-1, ISO 9001:2008
Name:
Three Cone Bit / Hard Rock Drill Bits
Cutting Material:
TCI
Standard:
API-7-1, ISO 9001:2008
Series:
FA
IADC:
617G
G:
Reinforced Gauge Protection
Formation:
Medium Hard With Higher Compressive Strength As Well As Thick And Streaks
Packaging Details:
plywood box / iron box
Highlight:

ertical Drilling Oil Field Drill Bits

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Oil Field Drill Bits 12 1/4"

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FA617G Oil Field Drill Bits

Product Description

12 1/4" FA617G , Tricone Rock Bit, Medium hard with higher compressive strength as well as thick and streaks

 

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

 

Types & IADC Code

417

437

447

517

527

517

527

537

547

617

627

637

 

WOB

KN/mm(Bit Dia.)

0.4~0.9

0.4~0.9

0.35~1.0

0.35~1.0

0.5~1.0

0.6~1.1

0.7~1.2

Lb/in. (Bit Dia.)

2285~5142

2285~5142

2000~5714

2000~5714

2857~5714

3428~6285

4000~6857

Rotation Speed (Rpm)

140~60

240~70

125~50

~60

110~50

100~40

80~4

ROLLER CONE BIT FLUID CIRCULATION 

Drilling fluid passes from the drillstring and out through nozzles in the bit.

As it passes across the face of the bit it carries the drilled cutting from the cones and into the annulus.

The original design for rock bits only allowed the drilling mud to be ejected from the middle of the bit .

This was not very efficient and led to a build up of cuttings on the face of the bit (bit balling) and cone erosion.

A more efficient method of cleaning the face of the bit was therefore introduced.

The fluid is now generally ejected through three jet nozzles around the outside of the bit body .

The turbulence created by the jet streams is enough to clean the cutters and allow efficient drilling to continue.