Three-Cone Bit for Oil Well Drilling

Model NO.: Three-Cone Bit


Certification: AISI, API


Type: Cone Drill Bit


Use: Drilling Machine


Delivery Terms: by Sea or by Air


Trademark: HF


Origin: Henan, China




Customized: Non-Customized


Length: All Kinds


Material: Diamond


Model: TCI Bit, Steel Tooth Bit


Button Size: Button Bit,Saw Teeth


Specification: CE


Three-Cone Bit for Oil Well Drilling



1.Tricone Bit cutting structure

Adopting new formula of new technology of the high quality hard alloy tooth, enhance the cutting teeth mechanical properties.



2. Tricone bit diameter structure

Using multiple gage protection structure: Die with multidrug trimming tooth (GT teeth), round back, claw back set have cemented carbide gear, surfacing resistance mo alloy, strengthen ZhaoJian and anterior apply welding, greatly improving the drill gage protection ability.



3. Tricone bit bearing structure

Adopting high precision with radial sliding, two way thrust bearings, ball tight. Tooth claw big shaft neck and two stop surface welding have wear-resisting alloy, cone big hole and two stop surface solution and silver inlaid special alloy, increase the abrasion resistance and resistance bearing vice occlusive ability, improve bearing ability of high speed vice adapt.



4. Tricone bit seal lubricants

Adopting advanced metal seal, greatly extend the drill life.



5. Tricone bit applicable

Metal seal bit stable performance, than common rubber seal bit longer life, suitable for underground power drill and high penetration rate turntable drilling.

IADC	WOB	RPM	Application
	(KN/mm)	(r/min)
111/114/115	0.3-0.75	200-80	very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
116/117	0.35-0.8	150-80	very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
121	0.3-0.85	200-80	soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
124/125		180-60
131	0.3-0.95	180-80	soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
136/137	0.35-1.0	120-60
211/241	0.3-0.95	180-80	medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds.
216/217	0.4-1.0	100-60
246/247	0.4-1.0	80-50	medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
321	0.4-1.0	150-70	medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble
324	0.4-1.0	120-50
437/447/435	0.35-0.9	240-70	very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone
517/527/515	0.35-1.0	220-60	soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
537/547/535	0.45-1.0	220-50	soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
617/615	0.45-1.1	200-50	medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
637/635	0.5-1.1	180-40	hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble
Note: Above limitts of WOB and RRPM should not be used simultaneously

PIN SIZE

Bit Diameter		API PIN
(inch)	(mm)
3 7/8"~5 1/4"	98~134	2 3/8", 2 7/8"
5 5/8"~6 3/4"	143~171	3 1/2"
7 1/2"~9 1/2"	190.5~241	4 1/2"
9 5/8"~13 3/4"	245~350	6 5/8"
14 5/8"~26"	371~660.4	7 5/8"

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