PDC Bits Matrix Body 8 3/4′′

• Customized: Customized
• Standard: API
• Type: Core Drill Bit
• Material: Tungsten Carbide
• Usage: Well Drilling
• IADC: 323
• Model NO.: s233
• Weight: 70
• Size: 8 1/2
• Transport Package: Wooden Case
• Specification: SGS
• Origin: Hebei
• HS Code: 82071990
• Production Capacity: 50000PS/Year

Product Description

Product specification

Number of blade
7
Cutter size (mm)
16MM
Nozzle QTY Type
7NZ
Gauge length
2.5"
Junk slot area(in^2)
20.0
Connection
4-1/2"API Reg
Make up Torque(KN. M)
49.6-51.4
Operating parameters
Rotary speed(rpm)
60-350
Weight on bit(KN)
13-115
Max wob(KN)
115
Flow rate (lps)
28-70
Applications and features
Applications
Recommended Formation: Soft to Medium hard formation with low compressive strength interbedded with hard layers. Rock type: Clay stone., Marl. Lignite. Sandstone. Tuff.
Features
The type is a matrix body PDC bit with 7 curved blades and medium short parabolic profile Force-balance design and Low
 

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