20" Tricone Bit IADC517/537 Rock Drill Bit for Well Drilling
20 inch Tricone Bit IADC517, 537 Rock Drill Bit for Well Drilling
-We are a 100% factory(manufacturer) of tricone bits (both Steel
Milled Tooth and Tungsten Carbide Inserts Bit) from 3" to 20" and
PDC drill bits from 3 1/2 to 17 1/2 Inch, with 30 years'
experience.
-We have passed factory audit by SGS. All of drill bits are
strictly according to API standard.
-We are competent to design and produce the drilling tools like
single roller cutters(cones),hole openers and other customized bits
depending on the utility demand.
-Roschen Tricone Rock drill bits have been being sold well and
running stably in many areas, such as: the United States, Canada,
Chile, Poland, France, Saudi Arabia, Egypt, Singapore and Russia
and so on.
-We adhere to the principle of " Win the customer by attractive
quality and price" and "Create value for customers by professional
technology and experienced service".
Description
We are constantly improving the efficiency of our work in order to
respond more quickly to changes in customer demand for our Acid
Conveying Skid, Fracturing Manifold Skid, Choke Manifolds. We take
science and technology to ensure a prosperous country and serve it
with hard work as a historic mission. Our company strives for
development by quality and innovation, thus taking a leading
position in the industry. Facing the fiercely competitive market,
we have worked hard, actively explored, and accumulated a lot of
experience with our keen observation and indomitable spirit. We
strictly abide by corporate ethics, contract and keep promises. Our
company adheres to the core values of 'pursuing excellence,
teamwork and mutual achievement'! Facing the future, we will
continue to control the quality of our products and meet market
demands with better products and services.
1. Introduction
This series of rock bit adopts metal seal with journal bearing,
which can drill stably with high rotary speed. It’s the ideal part
of well section. The size range of rock bit is from 3-1/2 to 26
inch and IADC varies from 117 to 837.
2. Main Structure Features
a. Metal face seal journal bearing. New processes of head bearing
hardfacing and cone bearing silver plating are used to improve the
load capacity, anti-galling ability and stability of the bearing .
b. Varies shapes of inserts can be equipped on this series of bits,
including scoop inserts, wedge inserts, conical-spherical inserts
and double spherical inserts, etc. Drilling process & formation and
bit are efficient integrated by scientific insert shape selection
to realize safety and high efficient drilling.
c. For this series, a row of inserts is added between gage row and
heel row to trim borehole wall and protect cone shell.
3. Main Models, Applicatiosn And Technical Specifications
3.1 Applicable Fromation For Different Kinds Of Rock Bit
| IADC | WOB(kn/mm) | RPM | Applicable Formations |
| (bit diameter) | (r/min) |
| 117 | 0.35-0.8 | 240-80 | Very soft fromations with low compressive strength and high
drillability, such as clay, mudstone, chalk, etc. |
| 127 | 0.35-0.9 | 240-70 | Soft formations with low compressive strength and high
drillability, such as mudstone, gypsum, salt, soft shales, soft
limestone, etc. |
| 437 447 | 0.35-0.9 | 240-70 | Very soft formations with low compressive strength and high
drillability, such as clay, mudstone, chalk, gypsum, salt, soft
shale, soft limestone, etc. |
| 517 527 | 0.35-1.0 | 220-60 | Soft formations with low compressive strength and high
drillability, such as mudstone, gypsum, salt shale, soft limestone,
etc. |
| 537 547 | 0.45-1.0 | 220-50 | Soft to medium formations with low compressive strength, such as
medium soft shale, medium soft limestone, medium soft sandstone,
medium formation with harder and abrasive interbeds, etc. |
| 617 627 | 0.45-1.1 | 220-50 | Medium hard formations with high compressive strength, such as hard
shales, limestone, sandstone, dolomite, etc. |
| 637 | 0.5-1.1 | 180-40 | Hard formations with high compressive strength, such as sandstone,
limestone, dolomite, hard gypsum, marble, etc. |
Note: the uppper limits of WOB and RPM in above table should not be
used simultaneously.
3.2 Available Rock Bit Size
Tricone Rock Drill Bits Specifications
| Tricone Rock Drill Bits Specifications |
| Rock bit size | Rock bit size | Rock bit size | Rock bit size |
| in | mm | in | mm | in | mm | in | mm |
| 3 1/2 | 88.9 | 7 1/2 | 190.5 | 10 5/8 | 269.9 | 14 5/8 | 371.5 |
| 4 5/8 | 117.5 | 7 7/8 | 200 | 11 | 279.4 | 14 3/4 | 374.6 |
| 4 3/4 | 120.6 | 8 1/4 | 209.6 | 11 5/8 | 295.3 | 15 1/2 | 393.7 |
| 5 1/2 | 139.7 | 8 3/8 | 212.7 | 12 1/8 | 308 | 16 | 406.4 |
| 5 7/8 | 149.2 | 8 1/2 | 215.9 | 12 1/4 | 311.1 | 17 1/2 | 444.5 |
| 6 | 152.4 | 8 3/4 | 222.2 | 12 15/32 | 316.7 | 20 | 508 |
| 6 1/4 | 158.8 | 9 1/2 | 241.3 | 13 1/8 | 333.4 | 24 | 610 |
| 6 1/2 | 165.1 | 9 5/8 | 244.5 | 13 5/8 | 346.1 | 26 | 660.4 |
| 6 3/4 | 171.4 | 9 7/8 | 250.8 | 13 3/4 | 349.3 | 36 | 914.4 |
FAQ:
1.Q: Is your company a distributor or a manufacturer?
A: Manufacturer, We are a 100% real factory of Rock Drill Bits,
with 30 years' experience. And We have passed the factory audit by
SGS.
2.Q: How about your products?
A : Both standardized tricone bits and PDC bits produced strictly
according to API and rock bits-customizing used in various
construction works are provided.
3.Q: What kind of packing do you have?
A: Ply Wooden boxes (free of fumigation); Cartons; Packing can be
customized.
4.Q: What is your price advantage?
A: We are 100% factory directly sales,API production process
guarantee,Provide customized services for brand processing.
Reduce the cost of drilling for you, worry free after-sales
service. Welcome to book a video-call to inspect our factory.
Tricone Bit IADC517/537 Rock Drill Bit for Well Drilling
5.Q: What is the minimum order quantity for your factory?
A:It all depends. Generally 1-5 pcs.
6.Q: What is the website about your factory?
A: www.roschen.com ; www.roschen.net
