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250mm Open Bearing Tci Tricone Bit For Mine Coal And Gas Drilling

Cang Zhou Creator Drill Equipment Scinence And Technology Co.,LTD

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250mm Open Bearing Tci Tricone Bit For Mine Coal And Gas Drilling

Country/Region china
City & Province hebei
Categories Copper
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Product Details

250mm open bearing tricone drill bit for mine coal and gas driling

JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits are available in new and used tricone bits , steel tooth and tungsten carbide insert, in sizes from 37/8" to 36", for use in all formations, with any bearing: seal type / air type , tricone bits apply to oil gas geothermy mining water HDD and foundation industry.

Re-Tip Steel Tooth Tricone Drill Bits

Re-tip steel tooth tricone bits are gently used bits that usually come from the oil fields. They are refurbished for use in non-oilfield rotary applications, such as water wells, HDD, and construction type drilling. These bits offer significant cost savings over new bits. Hole Products offers a wide range of premium, oil field quality re-tip steel tooth bits in sizes ranging from 2 1/2" to 36". Re-tip bits are available for use in soft, medium, and hard formations.

Quality warranty:

Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Package:

fumigation free-wooden box and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests

Quality warranty:

Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Package:

fumigation free-wooden box and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests

Main features:

1. Cutting Structure of this type sealed and non-sealed tci tricone bits

Tungsten carbide insert tricone bit : tungsten carbide alloy steel

Steel tooth tricone bit : Enhancing the wear-resistance of cutting tooth by welding new type of wear resistant material on the tooth surface of steel tooth bit. Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new formula and new techniques of insert bit.

2. Gauge Structure of this type tci tricone rock bits:

Gauge Structure

The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection.

  • Bearing Structure of this type tci tricone rock bits:

1)Rubber sealed Bearing Structure

High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.

Seal and Lubrication

The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.

2)Metal Sealed Bearing Bit

Bearing Structure

High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.

Seal and Lubrication

The advanced metal seal package is composed by two metal seals and two elastic rubber energiners. The energizer and back-up ring will support the pushing force to make the two metal faces tightly contact. In the drilling, the metal seals are relevant moving, and the energizers are static. This will increase the bearing seal reliability and durability. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.

 

3) Air type bearing Bit

Air cooling roller bearing package.Balls lock the cone,which reduces the probability of cone-dropping to minimum.

IADC Recommended parameters Applicable strata
WOB KN/mm Rotating speed r/min
116,117 0.35-0.8 150-80 Extremely soft formations with high compressive strength and drillability, such as clay, mudstone, chalk
126,127 0.35-0.9 150-70 Soft formations with high compressive strength and drillability, such as mudstone, gypsum, salt rock, soft shale, soft limestone
136,137 0.35-1.0 120-60 Soft to medium-soft formations with high compressive strength and high drillability, such as medium-soft shale, anhydrite, medium-soft limestone, medium-soft sandstone and soft formations with hard interlayers
216,217 0.4-1.0 100-60 Soft to medium formations with compressive strength, such as soft shale, medium soft limestone, medium soft sandstone and soft formations with hard interlayers
246,247 0.4-1.0 80-50 Medium-hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite
417,437,447 0.35-0.9 150-70 Very soft formations with high compressive strength and drillability, such as clay, mudstone, chalk, gypsum, salt rock, soft shale, soft limestone
517,527 0.35-1.0 140-60 Soft formations with high compressive strength, such as mudstone, gypsum, salt rock, soft shale, soft limestone
537,547 0.45-1.0 120-50 Soft to medium formations with compressive strength, such as medium-soft shale, medium-soft limestone, medium-soft sandstone and medium formations with effective hard abrasive interlayers
617,627 0.45-1.1 90-50 Medium-hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite
637 0.5-1.2 80-40 Hard formations with high compressive strength, such as sandstone, limestone, dolomite and anhydrite, marble

Production time:

Generally need 15-25 days

Transportation:

By air, By Express or By sea according to your requests

For more information, please contact:

Email: cocoyu@jsbit.com.cn

Mobile / WhatsApp / Linkedin / Facebook / Wechat / NO.

+86 13373078300

 

Website:

www.jsbit.com.cn

www.tci-triconebit.com

www.salebit.en.alibaba.com

 

 

 

 

 

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select tricone bit
Table of classification of formation hardness and bit selection

Roller cone bit

IADC code

IADC code of diamond bit Formation description Rock type Compressive strength(Mpa) ROP(m/h)
111/124 M/S112~M/S223 Very soft:sticky soft formation with low compressive strength.

Clay

Siltstone

sandstone

 

<25

 

>20

116/137 M/S222~M/S323 Soft:soft formation with low compressive strength and high drillability.

Clay rock

Marl

Lignite

sandstone

 

25~50

 

10~20

 

417/527

 

M/S323~M/S433

 

Medium soft:soft to medium formation with low compressive strength and steak.

Clay rock

Marl

Lignite

Sandstone

Siltstone

Anhydrite

Tuff

 

50~75

 

5~15

517/537 M322~M443 Medium:medium to hard formation with high compressive strength and thin abrasive streak.

Mudstone

Dark rock

shale

75~100 2~6
537/617 M422~M444

 

Medium hard:hard and dense formation with high compressive strength and medium abrasiveness.

Dark rock

Hard shale

Anhydrite

Sandstone

Dolomite

100~200 1.5~3

 

IADC CODE SELECTION
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 limits of WOB and RRPM should not be used simultaneously

 

- Strong brand and manufacture factory

- Find a distributor in each country

- API&ISO standard

- Large stock and fast delviery

 

 

 

 

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