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TCI Tricone Bit
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9 5/8" FSA517GT , TCI Tricone Bit , Sealed Friction Bearing , Trimming Cutter , Reinforced Gauge Protection

9 5/8" FSA517GT , TCI Tricone Bit , Sealed Friction Bearing , Trimming Cutter , Reinforced Gauge Protection

Brand Name: FLRT
Model Number: 9 5/8" FSA517GT
MOQ: 1~10pcs
Supply Ability: 200pcs per quarter
Detail Information
Place of Origin:
China
Certification:
API-7-1 , ISO 9001:2008
Bearing Type:
Sealed Friction Bearing With Gauge Protection
Cutting Material:
TCI
Standard:
API-7-1, ISO 9001:2008
Series:
FSA
Application 1:
Oil Well Drilling
Application 2:
Gas Well Drilling
Application 3:
Geothermal Well Drilling
Bit Size:
9 5/8" ( 244.5mm )
Packaging Details:
plywood box / iron box
Highlight:

tungsten carbide insert bit

,

tungsten carbide drill bits

Product Description

9 5/8" FSA517GT , TCI Tricone Bit , Sealed Friction Bearing , Trimming Cutter , Reinforced Gauge Protection

 

SIZE AVAILABLE
Form 3 7/8inch to 18 1/2inch

 

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

Types & IADC Code 417

437

447

517

527

537

547

617

627

637
WOB KN/mm(Bit Dia.) 0.4~0.9 0.4~0.9 0.35~1.0 0.5~1.0 0.6~1.1 0.7~1.2
Lb/in. (Bit Dia.) 2285~5142 2285~5142 2000~5714 2857~5714 3428~6285 4000~6857
Rotation Speed (Rpm) 140~60 140~60 125~50 110~50 100~40 80~40

 

The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.

 

 

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.

 

Jet nozzles are small rings of tungsten carbide and are available in many sizes. The outside diameter of the ring is standard so that the nozzle can fit into any bit size. The size of the nozzle refers to the inner diameter of the ring. Nozzles are available in many sizes although diameters of less than 7/32″ are not recommended, since they are easily plugged. The nozzles are easily replaced and are fitted with an “O” ring seal . Extended nozzles may also be used to improve the cleaning action . The nozzles are made of tungsten carbide to prevent fluid erosion.