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IADC 515 311.2mm Tricone Rock Bit / Pilot Drill Bit For Oil Well Drilling

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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IADC 515 311.2mm Tricone Rock Bit / Pilot Drill Bit For Oil Well Drilling

IADC 515 311.2mm Tricone Rock Bit / Pilot Drill Bit For Oil Well Drilling
IADC 515 311.2mm Tricone Rock Bit / Pilot Drill Bit For Oil Well Drilling

Large Image :  IADC 515 311.2mm Tricone Rock Bit / Pilot Drill Bit For Oil Well Drilling

Product Details:
Place of Origin: China
Brand Name: FLRT
Certification: API-7-1, ISO 9001:2008
Model Number: 12 1/4" FG515G
Payment & Shipping Terms:
Minimum Order Quantity: 20pcs
Packaging Details: plywood box / iron box
Delivery Time: 5~45 workdays
Supply Ability: 300pcs per quarter
Detailed Product Description
Name: TCI Drill Bit Cutting Material: TCI
Standard: API-7-1, ISO 9001:2008 Series: FG
IADC: 515 G: Reinforced Gauge Protection
Bit Size: 12 1/4" Connex: 6 5/8" API REG. PIN
High Light:

hdd drill bits

,

water well drill bits

311.2mm Rock Bit , IADC 515 , Tricone Bit, Oil Well Drilling , HDD Drilling , Pilot Bit

 

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

 

 

* Lubricants *

 

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
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Tel: +8613693012264

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