| Type: | Wireline Drill Rod |
|---|---|
| Usage: | Core Drilling |
| Certification: | CE, ISO |
| Material: | Cr-Mo Steel, 4130 |
| Surface Treatment: | Heat Treatment |
| Industry: | Rock Coring Survey |
| Samples: |
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| Customization: |
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Audited Supplier Some additional details about drill rods in the drilling industry:
Types of Drill Rods: There are different types of drill rods available to suit specific drilling applications. Some common types include:
Standard Drill Rods: These are the most commonly used drill rods in drilling operations. They are designed for general-purpose drilling and come in various lengths and diameters.
Heavyweight Drill Rods: Heavyweight drill rods are thicker and heavier than standard drill rods. They are used in challenging drilling conditions where added strength and stability are required, such as deep drilling or in hard rock formations.
Spiral Drill Rods: Spiral drill rods have a helical groove along their length. This design helps reduce friction and improve the efficiency of drilling in certain formations, such as loose or unconsolidated soils.
Flush-Jointed Drill Rods: Flush-jointed drill rods have a smooth continuous outer surface without threaded connections. They are used in certain drilling methods, such as auger drilling, where drilling fluid circulation is not required.
Drill Rod Accessories: Various accessories are used in conjunction with drill rods to enhance drilling efficiency and productivity. Some common accessories include:
Subs and Adapters: Subs and adapters are used to connect drill rods with different thread types or sizes. They allow for compatibility between different components of the drilling assembly.
Stabilizers: Stabilizers are attachments that help maintain the stability of the drill string during drilling. They are particularly useful in challenging geological formations or when drilling deviated or inclined boreholes.
Centralizers: Centralizers are devices that keep the drill bit centered within the borehole, ensuring straighter drilling and preventing deviation. They are especially important in vertical or highly deviated drilling.
Shock Absorbers: Shock absorbers are used to reduce the impact and vibrations transmitted through the drill string during drilling. They help protect the drilling equipment and improve drilling performance.
Fishing Tools: Fishing tools are specialized tools used to retrieve lost or stuck drill rods or other components from the borehole. They are employed when drill rods become stuck or break during drilling operations.
Drill Rod Handling and Safety: Proper handling of drill rods is crucial for the safety of personnel and the integrity of the equipment. Some important considerations include:
Lifting and Transport: Drill rods should be lifted and transported using appropriate lifting devices or equipment to avoid bending or damaging the rods. They should be stored in rod racks or containers to prevent contamination or damage.
Thread Protection: Thread protectors should be used to safeguard the threaded connections of drill rods during transportation and storage. They help prevent damage to the threads, ensuring secure and leak-free connections.
Inspection and Maintenance: Regular inspection and maintenance of drill rods are essential to detect any defects, wear, or damage. Visual inspections, dimensional measurements, and non-destructive testing techniques are employed to assess the condition of the drill rods.
Proper Torqueing: During assembly or disassembly of drill rods, proper torqueing procedures should be followed to ensure secure connections without over-tightening or damaging the threads.
Drill Rod Compatibility: Compatibility between drill rods and other components of the drilling system, such as the drilling rig, drilling tools, and the drilling fluid circulation system, is crucial for efficient and safe drilling operations. Ensuring proper compatibility helps prevent equipment failure and optimizes drilling performance.
Environmental Considerations: The drilling industry is increasingly focused on environmental sustainability. Efforts are being made to develop drill rods and drilling techniques that minimize environmental impact. This includes reducing waste generation, optimizing drilling fluid usage, and designing eco-friendly materials for drill rod construction.
Drill rods are a fundamental component of drilling operations, providing the necessary strength, stability, and support for successful drilling projects. By selecting the appropriate type of drill rod, using compatible accessories, and following proper handling and maintenance practices, drilling professionals can optimize drilling performance and safety.
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: How many drilling rods are used for a typical drill string?
A: The number of rods used depends on the depth of the hole, but a general rule of thumb is to use one rod for every 3-5 feet of drill depth or hole depth. Deeper holes require more rods.
Q2: What are the threads on drilling rods called?
A: The threaded ends of drilling rods that connect them together are called API threads. This refers to the American Petroleum Institute standard thread specifications used widely in oil & gas and mining industries.
Q3: What thread class do drilling rods commonly use?
A: The most common API thread class used for drilling rods is 8 Round, or 8Rd. This refers to threads with 8 threads per inch and rounded (as opposed to sharp creased) thread profiles for strength.
Q4: How are drilling rods connected together?
A: Drilling rods are connected end to end using threaded pin and box connections. The box end of one rod screws onto the pin end of the next rod to form a continuous drill string.
Q5: What tool is used to connect drilling rods?
A: A power tong or torque wrench is used to screw drilling rods together. This tool applies precise torque to the connections to prevent cross-threading and ensure sufficient tightness when making up a drill string.
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