15.5inch IADC 517 Drill Bits

• Type: Drill Bit
• Material: Alloy Steel, Tungsten Carbide
• Usage: Well Drilling
• Model Number: Steel Tooth Bit, TCI Bit
• Bearing Type: Sealed Bearing and Non-Sealed Bearing
• Suitable Formation: Soft, Medium Soft, Hard, Medium Hard, Very Hard
• Color: Blue or Red
• IADC Code: 114~837
• Transport Package: Wooden Case
• Specification: ISO
• Trademark: HJ
• Origin: China
• HS Code: 8207191
• Production Capacity: 500

Product Description

15.5inch iadc 517 drill bits





 

The roller- cone bits are used to drill all kinds of formations, from soft to hard. The softer formations use steel-tooth bits, and the harder use tungsten carbide.<o:p>

The biggest advantage the tricone bits have over any other drill bit is the test of time. They have been proven time and time again, and they're the best at controlling the trickier situations. Tricones' ability to handle both soft and hard formations gives them the flexibility that other drill bits do not have.

IADC	WOB	RPM	Applicable Formations
	(KN/MM)	(r/min)
	(Bit Dia)
116  117	0.35~0.8	150~80	Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk etc.
126  127	0.35~0.9	150~70	Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,softshale.soft limestone,ect.
136  137	0.35~1.0	120~60	Soft to mesium soft formations with low compressive strength and high drillability.such as medium soft shale,hard gypsum,medium soft limestone.medium soft sandstone soft formation with harder nterbeds,ect.
216  217	0.4~1.0	100~60	Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds ect.
246  247	0.4~1.0	80~50	Medium hard formations with high compressive strength,such as abrasive shale.limestone,sandstone,dolomite,hard gypsum,marble,ect.
417  437	0.35~0.9	150~70	Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk,gypsum,salt,soft shale,soft limestone,etc.
447
517  527	0.35~1.0	140~60	Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,soft shale.soft limestone,ect.
537  547	0.45~1.0	120~50	Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds,ect.
617  627	0.45~1.1	90~50	Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,ect.
637	0.5~1.2	80~40	Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect.