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Steel Milled Tooth Tricone Drill Bit 3 1/2"~ 26" Size Drilling Tools And Accessories

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Address: 65 EAST XINHUAN ROAD, SHANGHAI, CHINA

Contact name:Bill, George, Michael

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Steel Milled Tooth Tricone Drill Bit 3 1/2"~ 26" Size Drilling Tools And Accessories

Country/Region	china
City & Province	shanghai shanghai
Categories	Air Drills

Product Details

High quality insert tricone bits factory selling directly

Product name	Steel teeth tricone bits
Material	Carbon steel
Process	Forging
Usage	Hole drilling in water well drilling and oil exploration
Model size	3 1/2"~ 26"
MOQ	1 piece

Main product:

(1) IADC code: 116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535
(2) Sizes: From 2 7/8 to 26"larger sizes for hole opener bit ,reamer bit
(3) Bearing type: sealed bearing and non-sealed bearing; HJ(metal sealed journal bearing); HA (rubber sealed journal bearing; air cooled bearing type
(4) Formation or layer: soft, medium soft, hard, medium hard, very hard formation

IADC CODE SELECTION
IADC	WOB	RPM	Application
IADC	(KN/mm)	(r/min)	Application
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	0.3-0.85	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)	API PIN
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''

Cutting Structure
Steel Tooth: Premium tungsten carbide hard facing on the surface, greatly enhance the wear resistance of the tooth.
Tungsten Carbide Inserts: Various type high quality tungsten carbide inserts can be equipped on the bits, professional and scientific selection of the inserts as per the different application and drilling process to achieve high efficient drilling production.

Gauge Structure

Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.

Bearing Structure

Journal bearing and roller bearing types are available to be chosen. Abrasion & seizure resistance, loading capacity, stability of the bearing are well improved, suitable for high speed rotary drilling.

Seals and Lubrication

The advanced metal seals improve the reliability and stability of the bearing sealing. Pressure difference type compensating system assures a good greasing lubrication function.

IADC

vary from 114--637 applicable for the hole drilling in the upper section with good drillability.