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Water Well Drill Bit

Star Tornado covers sizes from 4 1/2” to 17 1/2”, and has more than 100 varieties of TCl and steel tooth roller cone bits, which are suitable for extremely soft to extremely hard formations, and are also suitable for conventional drilling and other different drilling techniques.

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  • Product Overview

    Star Tornado oil bits are mainly used in drilling engineering of liquid circulation systems. Star Tornado oil bits' technology comes from the advanced oil roller bit manufacturer in the United States. Based on Shareate's existing advantages in the design and manufacture of mining roller cone bits, Star Tornado is designed and manufactured in accordance with the standard of oil roller cone bits, which has a longer lifespan and higher drilling efficiency.


    Star Tornado covers sizes from 4 1/2” to 17 1/2”, and has more than 100 varieties of TCl and steel tooth roller cone bits, which are suitable for extremely soft to extremely hard formations, and are also suitable for conventional drilling and other different drilling techniques.

  • Product Overview

    Star Tornado oil bits are mainly used in drilling engineering of liquid circulation systems. Star Tornado oil bits' technology comes from the advanced oil roller bit manufacturer in the United States. Based on Shareate's existing advantages in the design and manufacture of mining roller cone bits, Star Tornado is designed and manufactured in accordance with the standard of oil roller cone bits, which has a longer lifespan and higher drilling efficiency.


    Star Tornado covers sizes from 4 1/2” to 17 1/2”, and has more than 100 varieties of TCl and steel tooth roller cone bits, which are suitable for extremely soft to extremely hard formations, and are also suitable for conventional drilling and other different drilling techniques.

Brand Introduction

01. Star Tornado is a brand of customized oil bits under Shareate Tools Ltd.It is committed to providing our customers with the most professional, diversified and cost-effective customized oil bits 02. "" echoes the meaning of "Tornado", showing the flexible mechanism of Tornado TM, as well as the powerful energy contained in the drill bits like a hurricaneto take water from drilling rocks and crushing stones.
03. Star Tornado brand oil bits can provide different bearing,sealing,cutting structure and lug back protection structures according to customer needs, as well as other additional features to choose from. With the flexible product characteristics, plus Shareate's strong support of profound design, manufacturing and service capabilities, we can truly tailor our products to customers, solve their pain points to the greatest extent, and provide customers with the most suitable oil bits. 04. Star Tornado drill bits feature a recognizable matte silver finish and are provided in a safe and stable wooden box to ensure that the drill bits will not be bumped or overturned during transportation.

Product Introduction

  • Basic structure
    Star Tornado oil bits are assembled by three cones and three segments, and some necessary functional structures.
    According to the structure,it can be divided into bearing structure, cutting structure, shirttail and lug back reinforcement structure, flow channel system, injection system, oil storage pressure balance system and connecting thread.
  • Nomenclature

    The name of the Tornado oil bits consists four parts: diameter code, series code, IADC classification code, and additional feature code.


    For example 12 1/4 DHA547XT:


    2.1 Diameter Code

    The diameter of tricone bit is expressed by inch, and 12 1/4 means the diameter of drill bit is 12.25 inch (311mm).


    2.2 Series code: in 2~3 letters

    The first letter “D” represents customization available.

    The second letter indicates the bearing structure, G for roller bearing and H for journal bearing.

    The third leter indicates the seal type,A represents O-shaped rubber seal, V represents flat rubber seal, J represents metal seal, and no third letter indicates non sealing.


    2.3 IADC classification code

    It is composed of three digits, the first digit represents the type of bit cutting structure and formation hardness, the second digit is the formation classification number, and the third digit is the bearing and sealing feature code.

    The first digit: 1,2,3 (MT Tricone bit), 4,5,6,7,8 (TCI Tricone bit). The bigger the number is, the higher the hardness of corresponding formation.

    The second digit: 1,2,3,4 (fromation classification, the bigger the number is, the higher the hardness of corresponding formation):

    The third digit: 1-7 stands for the meaning shown in the table below. 2,5 and 7 are commonly used by Shareate Rotary bits.


    Code Bearing and seal features
    1 Open roller bearing
    2 Air cleaning, cooling and open roller bearings
    3 Roller bearing, diameter protection
    4 Sealed roller bearing
    5 Sealed roller bearing, diameter protection
    6 Sealed journal bearing
    7 Sealed journal bearing, diameter protection

    2.4 Additional feature code

    The additional feature code reflects the special structure of oil bits. The common additional feature codes are shown in the following table:

    Code Additional feature
    B Inserts and welding at lug back
    C Centre nozzle port
    F Cone auxiliary carbide protection
    G Special enhancement of lug back
    H Diamond composite insert
    K Cutting structure of hard plastic formation
    L Lug back centralizing
    T Trimming insert
    W Welding at shirttail lip
    X Wedge‑shaped insert
    Y Conical insert
  • Steel stamp of thread end face

    Tornado oil bits are stamped with the basic information on the threaded end face of each drill bit (see the figure below), including the drill bit specification, serial number, production date,APl 7-1 logo, thread type, Shareate and Tornado logo Customers can learn about the relevant information here, which is convenient for them to store and record data.


Configuration Table

Item Steel type Bearing structure Oil storage system Alloy nozzle Central nozzle Dia.
Protection 		Lug back
protection 		Cone welding
strengthening 		Auxiliary tooth
strengthening 		Packaging Painting
V shape O‑ring Oil storage bag Simple equipped Standard wooden packaging Blank wooden packaging Cardboard packaging Yellow Silver Customize
Standard ✓ ✓ ✓ ✓
Customized ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

Shareate Water Well Drill Bit:

We provide a complete series of water well bit solutions. Whether you face soft soil, hard rock, or complex and variable geological formations, there's always one that can be your efficient penetration tool.

➤ Features of the Full Series Water Well Drill Bit

◯ The full series offers comprehensive coverage of size ranges and includes various types of milled tooth (MT) and tungsten carbide insert (TCI) bits.
◯ All products in the series adopt a new sealing and journal bearing structure, effectively increasing bearing life and reliability under high weight‑on‑bit (WOB) or high rotary speed drilling conditions.
◯ All products in the series feature a new lubricant reservoir system with optimized grease channels, enhancing lubrication effectiveness and significantly reducing the risk of bearing failure due to grease failure.
◯ The series includes designs such as reinforced hard facing on the shirttail, strengthened teeth layout on the lug, and heel row teeth on the cone, improving the bit's Rate of Penetration (ROP) and gauge holding capability.
Structural Features
Tornado oil bits can be divided by structure into bearing structure, cutting structure, lug back strengthening structure, flow channel injection system, oil storage pressure balance system and connecting thread.

According to the structure, the bearing can be divided into roller bearing and journal bearing.

Roller bearing

The roller bearing is composed of cone shaft hole, cone journal, thrust block, small roller, steel ball, large roller and sealing structure (see the figure below). The roller bearing has low friction coefficient and is suitable for high speed. It is mainly used for oil bits size larger than 14 3/4”.

Journal bearing

The journal bearing is composed of cone shaft hole, cone journal, steel ball and sealing structure (see the figure below). The journal bearing has stable structure, excellent bearing performance and strong adaptability. It is mainly used for oil bits size smaller than 14 3/4".

The roller and journal bearings of Tornado oil bits are both rubber sealing structure. The rubber sealing ring with high temperature resistance and strong wear resistance can ensure the lubricating environment inside the bearing and greatly prolong the bearing life of the oil bit. It is suitable for mostoil drilling conditions and coal bed methane driling.

Cost-Effective Type: W Series Water Well Drill Bit

Positioning

Tailored for shallow, soft to medium‑hard formations and budget‑sensitive projects, pursuing ultimate cost‑effectiveness.

Product Features:

  1. The cones and lugs of this series are made from conventional alloy structural steel, meeting the operational requirements for soft to medium‑hard formations.
  2. This series incorporates reinforced hardfacing on the shirttail, alloy tooth protection on the cutter lug, and heel row teeth on the cone, enhancing the bit's ROP and gauge holding capability.

Product Advantages:

  1. Wide Applicability:
    Covers most common conditions for shallow water wells.
  2. High Cost‑Effectiveness:
    Achieves the job with a low cost per meter drilled within the target formations.

Application Scenarios:

  1. Agricultural irrigation wells, rural drinking water wells.
  2. Shallow holes for geological exploration, dewatering wells for construction.
  3. Fast drilling in homogeneous medium‑hard formations.

➤ Selection Table

Bit Size API Thread Bit model
in mm in
5 1/8 130.2 2 7/8 WHA517
5 1/2 139.7 3 1/2 WHA117、WHA537、WHA637
5 5/8 142.9 3 1/2 WHA417、WHA517、WHA537、WHA617
5 7/8 149.2 3 1/2 WHA117、WHV517、WHV537
6 152.4 3 1/2 WHV117、WHV417、WHV517、WHV537、WHV617
6 1/8 155.6 3 1/2 WHA117、WHV117、WHV417、WHV517、WHV537、WHV617
6 1/4 158.8 3 1/2 WHA117
6 1/2 165.1 3 1/2 WHA117、WHA417、WHA437、WHV517、WHV537、WHV617、WHV637
6 3/4 171.5 3 1/2 WHA117、WHA537、WHV437、WHV517、WHV537、WHV617、WHV637
7 1/2 190.5 4 1/2 WHV117、WHV217、WHV417、WHV437、WHV517、WHV537、WHV617
7 7/8 200 4 1/2 WHV117、WHV217、WHV417、WHV437、WHV517、WHV527、WHV537、WHV617、WHV637
8 1/2 215.9 4 1/2 WHA517、WHV117、WHV137、WHV217、WHV417、WHV437、WHV537、WHV617、WHV637
8 3/4 222.3 4 1/2 WHA117、WHV517
9 7/8 250.8 6 5/8 WHA117、WHA517、WHA527、WHA537、WHA617、WHV117、WHV217、WHV417、WHV437、WHV637
10 5/8 269.9 6 5/8 WHV117、WHV217、WHV417、WHV437、WHV517、WHV527、WHV537、WHV617、WHV637
11 279.4 6 5/8 WHV417、WHV437、WHV517、WHV537、WHV617、WHV637、WHV837
11 5/8 295.3 6 5/8 WHA117、WHA437、WHA517、WHA527、WHA537、WHA617
11 7/8 301.6 6 5/8 WHA437、WHA517、WHA527、WHA537、WHA617
12 1/4 311.2 6 5/8 WHV117、WHV217、WHV417、WHV437、WHA517、WHA527、WHA537、WHA617、WHA637、WHA737
13 3/8 339.7 6 5/8 WHV437、WHV517、WHV647
13 5/8 346.1 6 5/8 WHA437、WHA517、WHA537、WHA617
13 3/4 349.3 6 5/8 WHA117、WHA417、WHA437、WHV517、WHV537、WHV617
14 3/4 374.7 7 5/8 WGA115、WGA415、WGA515、WGA535
15 381 7 5/8 WGA435、WGA535、WGA635
16 406.4 7 5/8 WGA515、WGA535
17 1/2 444.5 7 5/8 WGA115、WGA415、WGA535、WGA615、WGA625

Note: Tricone bits can be designed and produced according to the customer's requirements should no bit model found in the above selection table

Pioneering Type: S Series Water Well Drill Bit

Positioning

Engineered for the most extreme and severe conditions, pursuing ultimate penetration capability and ultra‑long service life. It represents the culmination of technology for tackling high drilling depths and difficulties.

Product Features:

  1. This series utilizes high‑strength alloy structural steel, further enhanced by customized heat treatment plans to improve the cones' and lugs' adaptability to extreme conditions.
  2. The bearing surfaces in this series are specially strengthened to withstand high‑impact and high‑load conditions.
  3. This series features comprehensive protection on the back of the lugs, improving lug stabilization and further reinforcing gauge holding capability.

Product Advantages:

  1. Unparalleled Rock‑Breaking Ability:
    Maintains efficient crushing rates even when facing the hardest rock.
  2. Ultra‑Long Service Life:
    Top‑tier materials and manufacturing processes ensure maximum single‑run working time, making it particularly suitable for ultra‑deep well operations.
  3. Extreme Reliability:
    Delivers stable performance under high‑temperature, high‑pressure conditions, providing you with the most dependable assurance.

Application Scenarios:

  1. Ultra‑deep water wells.
  2. Geothermal wells, hot dry rock drilling.
  3. Extremely hard, highly abrasive, or severely fractured complex formations.

➤ Selection Table

Bit Size API Thread Bit model
in mm in
5 1/8 130.2 2 7/8 SHA517、SHA537、SHA617
5 1/4 133.4 3 1/2 SHA517、SHA537、SHA617、SHA637
5 1/2 139.7 3 1/2 SHA117、SHA417、SHA437、SHA517、SHA537、SHA617、SHA637
5 5/8 142.9 3 1/2 SHA517、SHA537、SHA617
5 7/8 149.2 3 1/2 SHA117、SHA517、SHA537、SHA617、SHJ537
6 152.4 3 1/2 SHA517、SHA537、SHA617、SHA637、SHV117、SHV417、SHV437、SHV517、SHV537、SHV617、SHV637、SHJ537、SHJ617、SHJ637
6 1/8 155.6 3 1/2 SHA517、SHV117、SHV417、SHV437、SHV517、SHV537、SHV617、SHV637
6 1/4 158.8 3 1/2 SHA517、SHA537、SHA617、SHV117
6 1/2 165.1 3 1/2 SHA437、SHA537、SHA617、SHA637、SHV117、SHV517、SHV537、SHV617、SHV637、SHJ537、SHJ617、SHJ637
6 3/4 171.5 3 1/2 SHA517、SHA537、SHA617、SHA637、SHV117、SHV417、SHV437、SHV517、SHV537、SHV617、SHV637、SHJ537
7 1/2 190.5 4 1/2 SHV117、SHV437、SHV517、SHV537、SHV617
7 5/8 193.7 4 1/2 SHV537、SHV617
7 7/8 200 4 1/2 SHV117、SHV417、SHV437、SHV517、SHV527、SHV537、SHV617、SHV637、SHJ527、SHJ637
8 1/2 215.9 4 1/2 SHA437、SHA517、SHV117、SHV437、SHV517、SHV527、SHV537、SHV617、SHV637、SHJ517、SHJ537、SHJ617、SHJ637
8 3/4 222.3 4 1/2 SHA447、SHJ537、SHJ637、SHV117、SHV437、SHV517、SHV527、SHV537、SHV617、SHV637
9 1/2 241.3 6 5/8 SHA127、SHV117、SHV127、SHV437、SHV517、SHV537、SHV617、SHV637
9 5/8 244.5 6 5/8 SHV117、SHV437、SHV537、SHV547、SHV637
9 7/8 250.8 6 5/8 SHV117、SHV417、SHV437、SHV447、SHV517、SHV527、SHV537、SHV617、SHV637、SHJ617
10 5/8 269.9 6 5/8 SHV117、SHV417、SHV437、SHV517、SHV527、SHV537、SHV617、SHJ537、SHJ637
11 5/8 295.3 6 5/8 SHA117、SHA127、SHA437、SHA517、SHA527、SHA537、SHA617、SHA637、SHJ637
11 7/8 301.6 6 5/8 SHA117、SHA527、SHA617、SHA637
12 1/4 311.2 6 5/8 SHA117、SHA127、SHA217、SHA417、SHA437、SHA517、SHA537、SHA547、SHA617、SHA637、SHJ537、SHJ637、SHV517、SHV537、SHV617
13 3/8 339.7 6 5/8 SGA545
13 5/8 346.1 6 5/8 SHA517、SHA537
13 3/4 349.3 6 5/8 SHA517、SHA617
14 3/4 374.7 7 5/8 SGA115、SGA415、SGA435、SGA515、SGA535、SGA615、SGA735、SGA835、SHA417
15 381 7 5/8 SGA415、SGA435、SGA535、SGA635
15 1/2 393.7 7 5/8 SGA425、SGA515、SGA535、SGA635
15 3/4 400.05 7 5/8 SGA415、SGA435、SGA515、SGA535
16 406.4 7 5/8 SGA515、SGA535
17 1/2 444.5 7 5/8 SGA115、SGA415、SGA425、SGA515、SGA535、SGA615、SGA625、SGA735

Note: Tricone bits can be designed and produced according to the customer's requirements should no bit model found in the above selection table

Recommendations for Tricone Bit Parameters
Bit Type IADC Recommend parameter Apply formation
Pulldown (kN/mm) Rotation speed (r/min)
Rubber sealed 117 0.35~0.90 150~80 Extremely soft formations with low compressive strength and high drillability, such as soft shale, clay, salt rock, etc.
127 0.35~1.00 150~70 Low compressive strength, high drillability soft formation, such as shale, clay, salt rock, soft limestone, etc.
417 0.35~0.90 140~70 Extremely soft formations with low compressive strength and high drillability, such as shale, clay, sandstone, conglomerate, etc.
437 0.35~0.95 140~60 Extremely soft formations with low compressive strength and high drillability, such as shale, clay, sandstone, conglomerate, etc.
447 0.35~1.00 140~60 Soft formations with low compressive strength and high drillability, such as shale, clay, salt rock, sandstone, soft limestone, gypsum, etc.
517 0.35~1.05 120~50 Soft formations with low compressive strength and high drillability, such as shale, clay, sandstone, soft limestone, etc.
527 0.35~1.05 120~50 Soft formations of compressive strength, such as shale, clay, sandstone, soft limestone, salt rock, anhydrite, etc.
537 0.35~1.05 110~40 Compressive strength, medium soft, with hard abrasive interlayer, such as hard shale, anhydrite, soft limestone, sandstone, etc
617 0.35~1.05 80~40 High compressive strength, medium to hard, with thick hard intercalations, such as hard shale, limestone, dolomite, sandstone, etc.
637 0.70~1.20 70~40 High compressive strength, high abrasive and medium hard formations such as limestone, dolomite, sandstone, flint, etc.
647

Note: The maximum pull down and rotation speed in the table is not recommended to be used at the same time.

Selection of Nozzles

Nozzle of the Tornado oil bit is made of cemented carbide. The name of the nozzle includes three parts: nozzle type, size code and outlet diameter.

➤ Example S3‑12 is as follows:

Nozzle type. S stands for standard type

The nozzle size code is 3

The nozzle outlet diameter is 12mm

➤ Nozzle selection table

Nozzle size code Bit Size Nozzle diameter (mm) Nozzle assembly length (mm) Nozzle outlet diameter (mm)
(in) (mm)
1 3 1/2~5 1/2 88.9~139.7 20.3 17.48 4~14
2 5 5/8~7 3/8 142.9~187.3 23.5 19.05 5~17
3 7 1/2~8 1/4 190.5~209.6 29.74 20.62 6~22
4 8 3/8~15 5/8 212.7~396.9 32.89 26.97 6~26
5 15 3/4~26 400.1~660.4 40.84 26.97 6~26

Note: Special nozzles of medium length, micro length and diamond can be provided