API PDC Rock Bit 5 Blade 12 1/4′′

• Customization: Available
• Type: Petroleum Drilling Tool & Accessory
• Usage: Well Drilling Machinery,
• Certification: ISO
• Drill Bit Size: 12 1/4 Inch
• Drill Bit Blade: 6
• IADC: 233
• Blades: 5
• Transport Package: Wooden Case
• Specification: sgs
• Origin: Hejian China
• HS Code: 82071990
• Production Capacity: 5000PS/Year

Product Description

PDC
M1942/M122


Deep blade and short parabolic configuration, ensure optimal bottom hole flow pattern and anti balling
Balanced flow hydraulics make the bit have good direction nature, smaller radials are shaken.
Suitable for extremely soft to medium soft formation




BitSPECIFICATIONSRECOMMENDE DOPERATION PARAMETERS
SIZE
Number of blade Primiary Cutter size Nozzle qty Gauge length Connection Rotary
Speed rpm Weight bit (kn)Flow rate(lps)
8 1/2419.05mm42"~3.5"4 1/2"API REG60-25010~8025~38

9 1/2
419.05mm42"~4"6 5/8" API REG 60-26010-8025-38



M1943/M132

Deep blade and short parabolic configuration, ensure optimal bottom hole flow pattern and anti balling
Balanced flow hydraulics make the bit have good direction nature, smaller radials are shaken.
Arc blade and spiral gauge enhanced the cutting capability and the drilling stabilization
Suitable for soft to medium soft formation




BitSPECIFICATIONSRECOMMENDE DOPERATION PARAMETERS
SIZE
Number of blade Primiary Cutter size Nozzle qty Gauge length Connection Rotary
Speed rpm Weight bit (kn)Flow rate(lps)
9 1/2419.05mm62"~3.5"6 5/8" API REG60-25020~11030~40

12 1/4
419.05mm62"~4"6 5/8" API REG 60-26025~13040~50



M 1953/M233
Deep blade and short parabolic configuration, ensure optimal bottom hole flow pattern and anti balling
Anti-whirl design improves BOP and enhances the drilling stability
Arc blade and spiral gauge enhance the cutting caga-bility and the drilling stabilization.
Medium cutter density is suitable for soft to medium formations.




BitSPECIFICATIONSRECOMMENDE DOPERATION PARAMETERS
SIZE
Number of blade Primiary Cutter size Nozzle qty Gauge length Connection Rotary
Speed rpm Weight bit (kn)Flow rate(lps)
8 1/2519.05mm52"~3.5"4-1/2"API REG60-25010~10025~38

9 1/2
519.05mm52"~4"6-5/8" API REG 60-25030~15040~55

M1954/M222

Deep blade and short parabolic configuration, ensure optimal bottom hole flow pattern and anti balling
Anti-whirl design improves BOP and enhances the drilling stability
Arc blade and spiral gauge enhance the cutting caga-bility and the drilling stabilization.
Medium cutter density is suitable for soft to medium formations.



BitSPECIFICATIONSRECOMMENDE DOPERATION PARAMETERS
SIZE
Number of blade Primiary Cutter size Nozzle qty Gauge length Connection Rotary
Speed rpm Weight bit (kn)Flow rate(lps)
9 1/2519.05mm52"~3.5"4-1/2"API REG60-25010~10025~38

12 1/4
519.05mm72"~4"6 5/8" API REG 60-25030~15040~55

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