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Product Overview
12 1/4 Rotary Tricone rock bit foroil well drilling bits
(Tungsten Carbide Insert) TCI Bits and Steel tooth bit:
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| (Tungsten Carbide Insert) TCI Bits Size | API Pin | Weight | Steel Tooth Bits Size | API Pin | Weight | ||
|---|---|---|---|---|---|---|---|
| in | mm | in | Kg | in | mm | in | Kg |
| 3 1/2 | 88.9 | 2 3/8 | 5 | 4 5/8 | 117.5 | 2 7/8 | 6 |
| 4 5/8 | 117.5 | 2 7/8 | 6.5 | 4 3/4 | 120.6 | 2 7/8 | 6.5 |
| 4 3/4 | 120.6 | 2 7/8 | 7 | 5 1/2 | 139.7 | 3 1/2 | 16.5 |
| 5 1/2 | 139.7 | 3 1/2 | 17 | 5 7/8 | 149.2 | 3 1/2 | 17 |
| 5 7/8 | 149.2 | 3 1/2 | 18 | 6 | 152.4 | 3 1/2 | 18 |
| 6 | 152.4 | 3 1/2 | 19.5 | 6 1/4 | 158.8 | 3 1/2 | 19 |
| 6 1/4 | 158.8 | 3 1/2 | 19.5 | 6 1/2 | 165.1 | 3 1/2 | 19 |
| 6 1/2 | 165.1 | 3 1/2 | 19.5 | 6 3/4 | 171.4 | 3 1/2 | 19 |
| 6 3/4 | 171.4 | 3 1/2 | 21 | 7 1/2 | 190.5 | 4 1/2 | 26.5 |
| 7 1/2 | 190.5 | 4 1/2 | 28 | 7 7/8 | 200 | 4 1/2 | 29 |
| 7 7/8 | 200 | 4 1/2 | 29.5 | 8 3/8 | 212.7 | 4 1/2 | 35 |
| 8 1/4 | 209.6 | 4 1/2 | 38 | 8 1/2 | 215.9 | 4 1/2 | 35 |
| 8 3/8 | 212.7 | 4 1/2 | 38 | 8 3/4 | 222.2 | 4 1/2 | 36 |
| 8 1/2 | 215.9 | 4 1/2 | 38 | 9 1/2 | 241.3 | 6 5/8 | 58 |
| 8 3/4 | 222.2 | 4 1/2 | 40 | 9 5/8 | 244.5 | 6 5/8 | 58 |
| 9 1/2 | 241.3 | 6 5/8 | 57.5 | 9 7/8 | 250,8 | 6 5/8 | 58 |
| 9 5/8 | 244.5 | 6 5/8 | 60 | 10 | 254 | 6 5/8 | 60 |
| 9 7/8 | 250.8 | 6 5/8 | 60 | 10 5/8 | 269.9 | 6 5/8 | 66 |
| 10 5/8 | 269.9 | 6 5/8 | 74 | 11 | 279.4 | 6 5/8 | 75 |
| 11 | 279.4 | 6 5/8 | 85 | 11 5/8 | 295.3 | 6 5/8 | 83 |
| 11 5/8 | 295.3 | 6 5/8 | 89 | 12 1/4 | 311.1 | 6 5/8 | 85 |
| 12 1/8 | 308 | 6 5/8 | 94 | 13 5/8 | 346.1 | 6 5/8 | 118 |
| 12 1/4 | 311.1 | 6 5/8 | 97 | 13 3/4 | 349.3 | 6 5/8 | 118 |
| 12 15/32 | 316.7 | 6 5/8 | 95 | 14 3/4 | 374.6 | 7 5/8 | 140 |
| 13 1/8 | 333.4 | 6 5/8 | 120 | 15 | 381 | 7 5/8 | 150 |
| 13 5/8 | 346.1 | 6 5/8 | 120 | 15 1/2 | 393.7 | 7 5/8 | 175 |
| 13 3/4 | 349.3 | 6 5/8 | 120 | 16 | 406.4 | 7 5/8 | 179 |
| 14 5/8 | 371.5 | 6 5/8 | 160 | 17 1/2 | 444.5 | 7 5/8 | 230 |
| 14 3/4 | 374.6 | 7 5/8 | 160 | 20 | 508 | 7 5/8 | 428 |
| 15 1/2 | 393.7 | 7 5/8 | 189 | 22 | 558.8 | 7 5/8 | 520 |
| 16 | 406.4 | 7 5/8 | 205 | 24 | 609.6 | 7 5/8 | 585 |
| 17 1/2 | 444.5 | 7 5/8 | 255 | 26 | 660.4 | 7 5/8 | 720 |
| 20 | 508 | 7 5/8 | 443 | 36 | 914.4 | 7 5/8 | 1850.0 |
| 26 | 660.4 | 7 5/8 | 810 |
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Mill tooth Tricone bit
Mill tooth Tricone bit Advantages
1. Optimized structure design of cutter shape is thickened hardfacing on surface and crest of cutters to enhance aggressiveness for cutters.
2. Enhanced hardfacing on leading edge and trailing edge of cutters improve wear-resistance of cutters.
3. New welding material is used to enhance further wear resistance of cutters.
4. Seal types of this bit are selected based on drilling applications. Default type of the bearing is rubber Oring seal.
Rotary Tricone bit Technical parameters
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| IADC | Normal WOB | Rotary Speed | Application formation |
|---|---|---|---|
| Kn/min (bit dia.) | (rpm) | ||
| 116 | 0.35-0.90 | 150-80 | Very soft formations with low compressive strength and high drillability,such as shale, clay,mudston,chalk and salt bed, etc. |
| 117 | 0.35-0.90 | 150-80 | Very soft formations with low compressive strength and high drillability,such as shale, clay,mudston,chalk and salt bed, etc. |
| 126 | 0.35-1.00 | 150-70 | Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,softshale soft limestone,ect. |
| 127 | 0.35-1.00 | 150-70 | Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,softshale soft limestone,ect. |
| 136 | 0.35-1.05 | 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. |
| 137 | 0.35-1.05 | 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 | 0.50-1.20 | 90-50 | 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. |
| 217 | 0.50-1.20 | 100-50 | 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. |
| 317 | 0.70-1.30 | 80-45 | Medium hard formations with high compressive strength and abrasiveness, such as limestone, dolomite, sandstone,and chert, ect. |
| 337 | 0.80-1.40 | 75-45 | Hard formations with high abrasiveness, such as hard limestone, dolomite, hard sandstone,and chert, ect. |
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Note: The upper limits of WOB and RPM recommended in above table not be used simultaneously.
FAQ
1.what can you buy from us?
Air Compressor,Drilling Rig,Drill Bit,Spare Parts
2.How can I make payment?
A: You can pay directly online on Alibaba with credit card, or TT, Western Union, LC etc.
3. How is the shipment? How long dose it take?
A: For large quantity or heavy products, we ship by sea shipping or land shipping. Shipping efficiency depends on country and city you want to ship to. For small and delicate products, we ship by DHL, UPS, Fedex or TNT.You can also appoint shipping method you like before we ship.4.How is your quality control?
A: We have our own experienced QC.There will be strict inspection and testing for every order before shipping out.
5.Do you have any certificate of authorization?
A: Our machinery is CE certified.
Email:bruce@kingkongdrillsltd.com
Elsa@kingkongdrillsltd.com
Whatsapp/wechat:+86 17638571343
www.kingkongdrillsltd.com
www.kingkongdrillslimited.com
www.chinadrillingtools.cn
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