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13 1/2" FSA517G Carbide Insert Drill Bits With 3 7/8 inch - 18 1/2 inch Size

Certification
China FLRT Bit certification
China FLRT Bit certification
Good result of the FLRT natural diamond drill bit. Thank you.

—— Bryan

We have ordered the tricone bits to drill shallow oil well and some times make hdd hole openers. The quality is good

—— Petter

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13 1/2" FSA517G Carbide Insert Drill Bits With 3 7/8 inch - 18 1/2 inch Size

13 1/2" FSA517G Carbide Insert Drill Bits With 3 7/8 inch - 18 1/2 inch Size
13 1/2" FSA517G Carbide Insert Drill Bits With 3 7/8 inch - 18 1/2 inch Size

Large Image :  13 1/2" FSA517G Carbide Insert Drill Bits With 3 7/8 inch - 18 1/2 inch Size

Product Details:
Place of Origin: China
Brand Name: FLRT
Certification: API-7-1 , ISO 9001:2008
Model Number: 13 1/2" FSA517G
Payment & Shipping Terms:
Packaging Details: plywood box / iron box
Delivery Time: 5~45 workdays
Supply Ability: 200pcs per quarter
Detailed Product Description
Bearing Type: Rubber Sealed Friction Bearing Cutting Material: TCI
Standard: API-7-1, ISO 9001: 2008 Series: FSA
Application: Oil Well Drilling TCI: Tungsten Carbide Insert
IADC: 517
High Light:

tungsten carbide drill bits

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oil well drill bit

13 1/2" FSA517G , Rubber Sealed Journal Bearing , Sealed Friction Bearing , TCI Tricone Bit

 

 

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.

 

 

Journal bearing


- The bearing load carrying surface
- Journal angle is the angle formed by a line perpendicular to the axis of the journal and the axis of the bit
- Magnitude affect the size of the cone
- Increase in angle decrease cone size
- The smaller the angle the greater the gouging and scraping action
- Optimum journal angle for soft and hard rock bits are 33 and 36

 

 

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.

Contact Details
FLRT Bit

Contact Person: sales

Tel: +8613693012264

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