| 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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Rod Handling Equipment: Drill rods are often handled using specialized equipment to ensure safe and efficient operations. Equipment such as rod handlers, rod racks, and rod elevators are commonly used to lift, transport, and store drill rods. These tools help prevent manual handling injuries and streamline the rod handling process.
Rod Wear Protection: Drill rods can experience wear and damage during drilling operations, particularly at the thread connections and contact points with the drilling tool. To mitigate wear, protective measures such as thread protectors, wear pads, or hardened surface treatments can be employed to extend the lifespan of the rods and maintain their performance.
Rod Inspections and Non-Destructive Testing (NDT): Regular inspections are essential to identify any defects or degradation in drill rods. Non-destructive testing techniques, such as magnetic particle inspection, ultrasonic testing, or dye penetrant testing, can be utilized to detect internal or surface defects that may compromise the integrity of the rods.
Rod Recycling and Reconditioning: Instead of disposing of used drill rods, they can be recycled or reconditioned to extend their useful life. Recycling involves melting down the rods and reusing the recovered metal, while reconditioning may include processes like cleaning, rethreading, or replacing worn-out components to restore the rods to a usable condition.
Rod Storage and Inventory Management: Proper storage and inventory management of drill rods are crucial for efficient operations. Rods should be stored in a clean, dry, and organized manner to prevent damage, contamination, or misplacement. Inventory management systems can help track the quantity, condition, and location of drill rods, ensuring their availability when needed.
Rod Performance Data Analysis: Analyzing drill rod performance data can provide valuable insights into drilling operations. Parameters like rod wear, torque, axial load, and vibration can be monitored and analyzed to optimize drilling efficiency, identify potential issues, and improve overall performance.
Rod Failure Analysis: In the event of a drill rod failure, conducting a failure analysis can help determine the root cause and prevent similar failures in the future. Factors such as material defects, improper torque application, fatigue, or excessive wear can contribute to rod failures, and understanding the failure mechanisms can guide improvements in rod design and usage practices.
Rod Transportability and Logistics: Drill rods are often transported between drilling sites, and their transportability is an important consideration. Factors such as weight, length, and ease of handling influence the logistics of transporting drill rods, especially when dealing with remote or challenging terrains.
Rod Certification and Quality Assurance: Drill rods may undergo certification processes or adhere to quality assurance standards to ensure their reliability and performance. Certification bodies or quality programs may evaluate factors such as material composition, manufacturing processes, and compliance with industry standards to provide assurance of rod quality.
Rod Innovation and Research: Ongoing research and innovation in drill rod technology aim to improve drilling efficiency, durability, and safety. Advancements in materials science, thread design, coatings, and manufacturing techniques contribute to the development of more robust and high-performing drill rods.
These additional details provide further insights into various aspects related to drill rods, including rod handling equipment, wear protection, inspections and NDT, recycling and reconditioning, storage and inventory management, performance data analysis, failure analysis, transportability and logistics, certification and quality assurance, and ongoing innovation and research in the field.
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 is a managed pressure drilling (MPD) system?
A: MPD systems circulate annular fluid to actively control downhole pressure profiles during critical operations like tripping, drilling, formation integrity tests. Precise monitoring and adjustment minimizes formation kick and flow control risks compared to conventional pressure maintenance methods.
Q2: What type of drill bits are used for PDC (polycrystalline diamond compact) drilling?
A: PDC bits feature a matrix of superhard man-made diamond segments bonded onto the bit face instead of steel teeth for enhanced cutting ability in medium to hard rock formations. Roller cone and fixed cutter PDC bits are common variants optimized for different drilling scenarios.
Q3: What is underbalanced drilling and its advantages?
A: Underbalanced drilling maintains lower pressure than formation at bit for controlled flowback to surface. This reduces formation damage versus conventional methods. Allows for improved reservoir evaluation and cleanup, higher penetration rates, elimination of reservoir "kill". Requires specialized engineering.
Q4: What is a blowout preventer test and why is it important?
A: Regular pressure testing of all BOP components like rams demonstrates their integrity and functionality before, during operations in case needed for well control. Regulations may require tests be documented after specified intervals to ensure BOP is functioning as designed to seal the wellbore if unexpected pressures are encountered.
Q5: What is a snubbing unit and when is it used?
A: Snubbing units use continuous tubulars like coil tubing to pump tools, fluids, cement into a pressurized well or pull rods while maintaining pressure integrity without tripping. Used for wells with risk of kicks, fracs, plugs requiring intervention without depressurizing the entire system through the BOP.
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