6 3/4in 171.5mm Good Qualitytci Tricone Drill Bit

Type: Core Drill Bit
Material: Tungsten Carbide
Usage: Well Drilling
IADC: 737
Color: Red
Wob: 0.7-1.2
Customization:

Contact Supplier

Diamond Member Since 2014

Suppliers with verified business licenses

Basic Info.

Model NO.
6 3/4in 171.5mm
Rpm
70-40
Transport Package
Wooden Case
Specification
ISO
Trademark
ouyate
Origin
Hebei Hejian
HS Code
82071990
Production Capacity
1000PCS/Month

Product Description

Cutting Structure
In response to the characteristics that inserts in different areas on the cone have different cutting actions, conical inserts are placed in permanent contact area and wedge inserts are placed in alternative contact area so that the drilling efficiency is greatly improved. Wear resistance of cutting structure is enhanced by setting diamond inserts in the permanent contact area of the cone where inserts are severely worn. Tungsten carbide inserts are placed on cone top face to protect cone body from abrasive erosion.
Gauge Structure
With active cutting gauge protection inserts on bit body, the bit has good gauge protection and updrill capability.
Bearing Structure
High precision journal bearing. Balls lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy. Abrasion resistance and seizure resistance of the bearing are improved. Compared with three cone bit, the leg bearing is bigger, so it can receive higher WOB and high reliability.
Hydraulic Design
Small angled watercourse design increased the shirttail thickness and can effectively prevent the watercourse erosion. Opitmized hydraulics structure improves the cleaning capability and increase ROP.
It can receive high WOB in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.
IADCWOB(KN/mm)RPM(r/min)Applicable Formations
 417/427 0.3-0.9 150-70very Soft formation with low compressive strength and high drillability,such as clay,soft mudstone,shale,salt,loose sands,etc.
 437/447 0.35-0.9150-70   very Soft formation with low compressive strength and high drillability,such as clay,soft mudstone,shale,salt,loose sands,etc.
 515/525 0.35-0.9180-60  very Soft formation with low compressive strength and high drillability,such as mudstone,salt,soft limestone, sands,etc.
517/5270.35-1.0140-50Soft formation with low compressive strength and high drillability,such as  mudstone,salt,soft limestone,sands,etc
535/5450.35-1.0150-60 medium soft with harder formation, more abrasive streaks,such as hard shale,mudstone,soft limestone,etc.
537/5470.4-1.0120-40medium soft with harder formation, more abrasive streaks,such as hard shale,mudstone,soft limestone,etc.
617/627 0.45-1.190-50  medium hard with higher compressive strength as well as thick and hard streaks,such as hard shale,sands,limestone,dolomite,etc.
6370.5-1.280-40 medium hard with higher compressive strength as well as thick and hard streaks,such as hard shale,sands,limestone,dolomite,etc.
 737 0.7-1.270-40  Hard with high abrasiveness such as hard limestone,dolomite,firm sands,etc
827/837 0.7-1.2 70-40 very hard with high abrasiveness,such as quartzite,quaruzite sand,chert,basalt,granite,etc.
 

Send your message to this supplier

*From:
*To:
avatar Miss Daisy
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now

You Might Also Like

Contact Supplier

Diamond Member Since 2014

Suppliers with verified business licenses

Management System Certification
ISO9001:2008
OEM/ODM Availability
No