| 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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Some additional details about drill rods in the drilling industry:
Thread Compound: Thread compound, also known as thread grease or thread lubricant, is applied to the threaded connections of drill rods before assembly. The compound helps reduce friction during makeup (connection) and breakout (disconnection) of the drill rods, preventing galling and thread damage. It also provides a seal to prevent fluid leakage at the connections.
Drill Rod Accessories: Various accessories are used in conjunction with drill rods to enhance drilling operations. Some common accessories include:
Stabilizers: Stabilizers are tubular devices attached to the lower end of the drill string. They help maintain the trajectory and stability of the drill bit during drilling, especially in deviated or horizontal wells.
Subs: Subs, short for subassemblies, are intermediate components used to connect different types of drill rods with varying thread types or sizes. They provide compatibility between different sections of the drill string.
Crossovers: Crossovers are similar to subs but are used specifically to connect drill rods with different thread types or sizes.
Lifting Subs: Lifting subs have a specialized design and a lifting shoulder that allows for safe lifting and handling of the drill string during installation and retrieval.
Centralizers: Centralizers are devices attached to the drill rods to keep the drill bit centered within the borehole. They promote efficient drilling and prevent deviation or buckling of the drill string.
Drill Rod Connections and Makeup Torque: When assembling drill rods, it is important to properly tighten the threaded connections to ensure a secure and leak-free joint. The torque applied during makeup (tightening) of the connections is crucial. It should be within the manufacturer's recommended range to achieve the desired connection strength without causing thread damage.
Drill Rod Storage and Transportation: Proper storage and transportation of drill rods are essential to maintain their integrity and prevent damage. Some best practices include:
Storing drill rods in a dry, clean, and protected environment to prevent corrosion, contamination, and physical damage.
Using rod racks or stands to keep drill rods organized and prevent them from rolling or falling.
Stacking drill rods vertically to avoid excessive bending or deformation.
Protecting drill rods during transportation by using suitable packaging, containers, or racks to prevent impacts and other forms of damage.
Environmental Considerations: The drilling industry is increasingly focused on environmental sustainability. Efforts are being made to minimize the environmental impact associated with drill rods and drilling operations. Some initiatives include:
Recycling and reusing drill rods at the end of their service life to reduce waste and conserve resources.
Using environmentally friendly lubricants and thread compounds that are biodegradable and less harmful to the environment.
Implementing proper waste management practices for the disposal of used or damaged drill rods, adhering to local regulations and guidelines.
Embracing technologies and practices that promote energy efficiency and reduce the carbon footprint of drilling operations.
Research and Development: Ongoing research and development efforts in the drilling industry focus on improving drill rod performance, durability, and cost-effectiveness. This includes exploring new materials, coatings, and manufacturing techniques to enhance the strength, wear resistance, and longevity of drill rods. Additionally, advancements in automation, robotics, and sensor technologies are being integrated into drill rods to enhance monitoring, data collection, and control during drilling operations.
Drill rods continue to evolve and play a crucial role in the success of drilling operations. By staying informed about the latest advancements, best practices, and environmental considerations, drilling professionals can optimize the use of drill rods and contribute to efficient, safe, and sustainable drilling practices.
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:
Q21: What safety precautions are required?
A: Use of proper PPE like steel-toe boots, hard hats, gloves, and safety glasses. Establish safety zones and only allow authorized personnel near rigs. Consider fall protection if working at height.
Q22: How are threaded connections tested?
A: Tests include torque testing, tension/compression testing, galling tests, and pressure testing. Ultrasonic and X-ray inspections also check for defects without damaging the metal.
Q23: What is the common inspection process?
A: Steps are visual check, connection feeler gauge check, diameter measurement, and periodic magnetic particle testing for more in-depth inspection.
Q24: What is the purpose of drill pipe protectors?
A: Protectors help centralize and protect vulnerable connection areas from abrasion and damage during drilling and tripping operations.
Q25: How is downhole survey data collected?
A: Survey tools electronically measure azimuth, inclination and depth. Known as MWD if integrated into the BHA or LWD when gathering formation evaluation data. Recorded in downhole modules.
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