TCI Tricone Bit Cutter, Single Cone Bit/ Single Bit

• Size: 3-23
• Transport Package: Wooden Case
• Specification: SGS
• Origin: Hebei
• HS Code: 82071990
• Production Capacity: 50000PS/Year

Product Description

KD SERIES single cone bit


 
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 aedge 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 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 surface. Cone bearing inlaid wit 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. Optimized hydraulics structure improves the cleaning capability abd increase ROP.
Product Application
It is suitable for sidetracking, deep well drilling and old well repairing.
 
Current Availability
 

Bit SizeBite Type

In mm

4 1/8104.8KD527 KD 547 KD 617

4 1/2114.3KD527 KD 547 KD 617

4 5/8117.5KD527 KD 547 KD 617

4 7/8123.8KD527 KD 547 KD 617

5 1/2139.7KD527 KD 547 KD 617

6152.4KD527 KD 547 KD 617

6 1/2165.1KD527 KD 547 KD 617

7 1/2190.5KD527 KD 547 KD 617

7 7/8200.0KD527 KD 547 KD 617

8 1/2215.9KD527 KD 547 KD 617

Recommended Drilling Parameters
 
 

IADCWOB
KN/MMRPM
r/minApplication Formations

5270.3-0.7120-50Soft formation with low compressive strength and high drill ability, such as mudstone, gypsum, salt, soft shale, soft limestone. etc.

54703.-0.7100-50Soft to medium formations with low compressive strength and high drill ability, such as mudstone, gypsum, salt, soft shale, soft limestone. medium formation with harder and abrasiver interbeds,etc.

6170.4-0.890-50Medium hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite, etc.
 

 
Note: the upper limits of WOB and RPM in above table should not be used stimultaneously.

ROLLER  CONE BITS	ROLLER CONE BIT (M/H)		FORMATION HARDNESS	FORMATION	ROCK TYPE	COMPRESS STRENGTH
	WEM	OBM
111/124	15-30	18-33	Very soft	soft formation with sticky layers and low compressive strength	clay,silts, sands	<25 MPa
116/137 437	9-15	12-18	soft	soft formation with low compressive strength and high drill ability	claystone,marl, lignite,tuff, sandstone	25-50 MPa
126/139 517/527	4.5-9	6-12	Medium soft	soft to medium formation with low compressive strength interb dded with hard layers	claystone,marl lignite,sandstone silts anhydrrites tuff	50-75 MPa
211/217 517/537	2.5-6	3-6	Medium	medium to hard formation with high compressive strength and small abrasive layers	mudstone , limstone, anhydrites, sandstone	75-100 MPa
211/236 537/617	1.5-2.5	1.5-3	Medium hard	hard and dense formation with very high compressive strength but non-abrasive	limestone, anhydrites, dolomite	100-120MPa
311/347 627/637	1-1.5	1-1.5	Hard	hard and dense formation with very high compressive strength and some abrasive layer	shale,sandstone ,siliceous, siltstone	100-200MPa
637 /737 /837	1	1	Very  hard	extremely hard and abrasive formtions	quartzite, lgneous ,rocks	>200MPa