Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process

Product Details
Customization: Available
Type: Wireline Drill Rod
Usage: Core Drilling
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  • Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process
  • Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process
  • Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process
  • Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process
  • Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process
  • Vibration Control Technology for Drill Rod with Advanced Heat Treatment Process
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Basic Info.

Model NO.
AQ,BQ,LTK48,NQ,NQ3,HQ,HQ3,PQ,PQ3 NTW, BTW, HTW
Material
Cr-Mo Steel, 4130
Surface Treatment
Heat Treatment
Industry
Rock Coring Survey
Transport Pack
Iron Bundle
Product Name
Drilling Rod, Drill Pipe
Thread Type
Pi, Metric, Dcdma etc.
Connection
Male/Female
Surface Finish
Smooth
Name
Drill Rod, Drill Pipe
Full Name
Rock Coring Drilling Rod
Machine Type
Drill Tool
Application
Oil Mining, Coal Mining, Well Drilling, Ore Minin
Formation
Medium, Hard, Hard Rock Formation
Transport Package
Nude/Wooden Case/Carten
Specification
BQ, NQ, HQ, PQ, SQ
Trademark
BEST
Origin
China
HS Code
73045120
Production Capacity
500000 Pieces/Year

Product Description

Product Description:

 

 

Here are some additional details about drill rods:

  1. Drill Rod Manufacturing Process: Drill rods are typically manufactured through a series of processes that involve forging, heat treatment, machining, and inspection. Here's a brief overview of the manufacturing steps:

    • Forging: The initial step involves forging the drill rod blanks from high-quality steel alloys. Forging involves shaping the heated steel material into the desired rod shape using compressive forces.

    • Heat Treatment: After forging, the drill rod blanks undergo heat treatment processes such as quenching and tempering. Heat treatment helps improve the mechanical properties of the steel, including its strength, hardness, and toughness.

    • Machining: The heat-treated drill rod blanks are then machined to achieve the final dimensions and thread profiles. Machining processes like turning, milling, and threading are employed to create the required features and tolerances.

    • Inspection: Throughout the manufacturing process, drill rods undergo rigorous inspection to ensure their quality and adherence to specifications. Various non-destructive testing methods, including visual inspection,  and magnetic particle inspection, may be employed to detect any defects or discontinuities.

  2. Drill Rod Grades: Drill rods are available in different grades, which indicate their specific properties and suitability for various drilling applications. The grade of a drill rod is typically determined by the steel material used and its mechanical properties. Higher-grade drill rods generally offer superior strength, toughness, and resistance to wear and fatigue. Common drill rod grades include API Grade E, S135, and G105, among others.

  3. Drill Rod Compatibility: Drill rods need to be compatible with other components of the drilling system, such as drill bits, subs, stabilizers, and drilling rigs. Compatibility ensures that the different components fit together securely and function effectively during drilling operations. Drill rod manufacturers often provide compatibility charts or guidelines that specify the suitable combinations of drill rods and other drilling equipment.

  4. Specialized Drill Rods: In addition to the standard drill rods used in various drilling applications, there are specialized types of drill rods designed for specific purposes:

    • Coring Rods: Coring rods are used in core drilling, where the objective is to extract intact cylindrical samples of the subsurface. These rods are designed to accommodate core barrels and core bits, allowing for efficient retrieval of core samples.

    • Directional Drill Rods: Directional drill rods are used in directional drilling, a technique employed to deviate the wellbore from the vertical. These rods are designed to withstand the bending and torque forces associated with directional drilling operations.

  5. Drill Rod Maintenance: Proper maintenance of drill rods is critical to ensure their longevity and performance. Some maintenance practices include:

    • Cleaning: Regularly cleaning drill rods after use helps remove dirt, debris, and drilling fluids that can cause corrosion or blockage in the threaded connections.

    • Lubrication: Applying a suitable thread compound or lubricant to the threaded connections helps reduce friction, prevent galling, and promote smooth makeup and breakout of the drill rods.

    • Storage: Proper storage of drill rods involves keeping them in a dry, clean environment to prevent corrosion. Rod racks or stands can be used to organize and protect the drill rods from physical damage.

    • Inspection: Regular inspection of drill rods helps identify any signs of wear, damage, or fatigue. Visual inspection and non-destructive testing techniques can be employed to detect any defects or discontinuities.

    • Replacement: When drill rods exhibit significant wear, damage, or fatigue, they should be replaced to maintain drilling efficiency and safety. It is important to follow manufacturer recommendations for the maximum service life of drill rods.


Parameter table

Size Outer Diameter (mm) Inner Diameter(mm)
AQ 44.7 37.3
BQ 55.7 46.1
NQ 70.0 60.2
HQ 89.0 78.0
PQ(PHD) 114.5 101.5
BTW 56.3 48.0
NTW 73.3 64.0
HTW 91.3 81.0
AW/AWJ/AWY 43.7 30.7
BW/BWJ/BWY 54.0 38.0
NW/NWY 66.8 51.0
HW 89.0 71.0
42mm 42.0 30.0
50mm 50.0 37.0
60mm 60.0 48.0
70mm 73.0 54.6
90mm 89.0 69.0
S75A 71.0 60.0
S95A 89.0 78.0
S110 110.0 98.0
S130 129.0 117.0

 

 
Name: Wireline Drill Rod
Product Basic parameters
Model: AQ,BQ,LTK48,NQ,NQ3,HQ,HQ3,PQ,PQ3 NTW, BTW, HTW
Material: Alloy Steel Tubing
Dimensions: 0.5,1m, 1.5m,  2m,2.5,3m length or customized
Color: Black or customized
Applications: Drilling Tools
Standard: ISO-9001
Application: Mining or geological Drilling
 
Rod Model OD (mm) ID (mm) Thread Pitch(mm) Pin Length(mm) Rod Length(m) Unit Bundle Qty (pcs)
BAU(Q) 55.6 46.1 8.5 44.5 3 19/25/30
NAU(Q) 69.9 60.3 8.5 44.45 3 19/25/30
HAU(Q) 88.9 77.8 8.5 44.45 3 19/25/30
BRAU(RQ) 55.6 46.1 8.5 42 3 19/25/30
NRAU(RQ) 69.6 60.3 8.5 42 3 19/25/30
HRAU(RQ) 88.9 77.8 8.5 42 3 19/25/30
PHD 114 102 10.2 63 3 79/25/30

 

 

FAQ:

Q1: What causes cracks to form in drilling rods?
A: Cracks are caused by cyclic fatigue from bending stresses, tension/compression loading, corrosion/wear reducing integrity over time, thermal shock during welding repairs, manufacturing defects, stress concentrations from scratches/impacts and more.

Q2: What NDT methods are used?
A: Common NDT includes magnetic particle, eddy current, ultrasonic, and radiographic testing. These evaluate integrity without damaging the metal.

Q3: What is whipstock drilling and when used?
A: Whipstocks are wedges that deflect sidetrack holes at predetermined angles, allowing drilling around obstructions from one surface location through multiple pay zones. Used to bypass fish/plugs.

Q4: What defects may be seen?
A: Thread wear, corrosion, thinning, cracking, pitting, galling, damage, ovalization, protector wear are inspected for.

Q5: What is the purpose of downhole jars?
A: Jars mechanically jolt stuck pipe to overcome friction and free or break out the string. Springs or compressible components rapidly expand on trigger.

 


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