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Professional TCI Tricone Bit 13 1/2" FSG515G IADC 515 For Gas Well Drilling

Good quality TCI Tricone Bit for sales
Good quality TCI Tricone Bit for sales
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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Professional TCI Tricone Bit 13 1/2" FSG515G IADC 515 For Gas Well Drilling

China Professional TCI Tricone Bit 13 1/2" FSG515G IADC 515 For Gas Well Drilling supplier

Large Image :  Professional TCI Tricone Bit 13 1/2" FSG515G IADC 515 For Gas Well Drilling

Product Details:

Place of Origin: China
Brand Name: FLRT
Certification: API-7-1 , ISO 9001:2008
Model Number: 8 3/8 FG515GT

Payment & Shipping Terms:

Packaging Details: plywood box / iron box
Delivery Time: 5~45 workdays
Supply Ability: 200pcs per quarter
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Detailed Product Description
Bearing Type: Rubber Sealed Roller Bearing Cutting Material: TCI
Standard: API-7-1, ISO 9001:2008 Series: FSG
Application 1: Oil Well Drilling Application 2: Gas Well Drilling
IADC: 515 G: Reinforced Gauge Protection
Bit Size: 13 1/2" ( 342.9mm )

13 1/2" FSG515G, Rubber Sealed Roller Bearing , 342.9mm TCI Tricone Bit , Tricone Drill Bit





Types &













(Bit Dia.)

0.35~0.95 0.35~0.95 0.4~0.7 0.4~0.7 0.45~1.1 0.5~1.2


(Bit Dia.)

2000~5428 2000~5428 2285~4000 2285~4000 2571~6285 2857~6857
Rotation Speed (Rpm) 150~60 150~60 140~80 120~80 110~60 100~50





High drilling temperatures and high pressures in the lubrication system, together with the potential of exposure to water and chemicals, require high performance from lubricants. Most bit lubricants are specially formulated. Leading bit manufacturers employ scientists to develop and test lubricants. Better drill-bit lubricants are stable to temperatures > 300°F, and many function normally at temperatures down to ≈0°F. They are hydrophobic (repel water) and retain their stability if water penetrates the bit. Quality lubricants are also resistant to chemicals commonly found in drilling fluids, are environmentally safe, and do not contain the lead additives that have traditionally helped resist high pressures.


-Lubricant supply. Roller-cone bits typically contain one lubricant reservoir in each leg (Fig. 7). Thus, for a three-cone bit, there are three reservoirs. Each must have the capacity for sufficient reserves of lubricant for operation of the bearing assembly it serves throughout the bit’s life.


-Pressure equalization and relief. A column of drilling fluids and cuttings contained in a well exerts very high pressures on a bit operating at the well bottom. These high pressures are applied to the seal system and must be resisted by lubricant in the seal and bearing system. At installation, lubricant is at atmospheric pressure and cannot provide significant resistance to well-bottom pressures. Accordingly, internal lubrication system pressures equalize themselves with external bit pressures to prevent seal failure caused by differential pressure. Equalization is accomplished by a small relief valve installed in the lubricant reservoir system.

Contact Details

Contact Person: sales

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