| Customization: | Available |
|---|---|
| Type: | Wireline Drill Rod |
| Usage: | Core Drilling |
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Some more details about drill rods in the rock coring and drilling industry:
Rod Length and Extensions: Drill rods come in various lengths to accommodate different drilling depths. Longer rods are used for deeper drilling applications, while shorter rods are suitable for shallower depths. In situations where additional depth is required, extensions can be added to the drill string to reach the desired depth.
Thread Types: Drill rods can have different thread types, such as API (American Petroleum Institute) threads or wireline threads. The choice of thread type depends on the drilling equipment and the specific requirements of the drilling operation. API threads are commonly used in standard drilling applications, while wireline threads are prevalent in wireline coring systems.
Rod Handling Safety: Safety is a critical consideration when handling drill rods. Proper training and adherence to safety protocols are essential to prevent accidents and injuries. Techniques like the two-handed method, where both hands are used to handle the rods during assembly and disassembly, can improve safety and reduce the risk of incidents.
Rod Inspection and Maintenance: Regular inspection and maintenance of drill rods are essential to ensure their optimal performance and longevity. Visual inspections are conducted to check for signs of wear, damage, or thread deformation. Maintenance activities may include cleaning, lubrication, and the replacement of worn or damaged components.
Rod Transport and Storage: Drill rods need to be transported and stored properly to prevent damage. They are typically stored in rod racks or cases that protect them from physical damage, corrosion, and contamination. When transporting drill rods, proper securing and padding are necessary to prevent movement and minimize the risk of damage.
Rod Retrieval Techniques: In some drilling operations, retrieving drill rods can be challenging, especially in deep boreholes or when encountering difficult ground conditions. Techniques such as wireline retrieval systems, fishing tools, or specialized retrieval equipment may be used to recover stuck or lost drill rods.
Rod Torque and Rotation: Drill rods are designed to transmit torque from the drill rig to the drilling tool, allowing for the rotational force required to penetrate the ground. Proper torque control is necessary to prevent rod failure or damage and to ensure effective drilling performance.
Rod Performance Monitoring: Monitoring the performance of drill rods during drilling operations can help identify potential issues or abnormalities. Parameters like torque, weight on bit, and drilling speed can be monitored to assess the efficiency of the drilling process and detect any deviations from the expected performance.
Rod Compatibility with Drilling Fluids: Drill rods need to be compatible with the drilling fluids or muds used in the drilling process. They should be resistant to corrosion or degradation caused by the fluids and should not adversely react with the drilling fluid additives.
Rod Innovation and Advancements: The rock coring and drilling industry continually evolves, and there are ongoing efforts to improve the design, materials, and performance of drill rods. Innovations may include the development of lighter and stronger materials, improved thread designs, or the integration of sensors for real-time monitoring of rod conditions.
These additional details provide further insights into various aspects related to drill rods, including their length and extensions, thread types, safety considerations, inspection and maintenance, transport and storage, retrieval techniques, torque and rotation, performance monitoring, compatibility with drilling fluids, and ongoing innovations 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 the purpose of drill pipe protectors/stabilizers?
A: Heavy duty tapered rings placed at various points in drill string help centralize pipes and protect vulnerable connection areas from abrasion and damage from contact with borehole walls during drilling and tripping operations. They also help guide the bit and stabilize long horizontal sections.
Q2: What is directional well surveying and why is it important?
A: As the well deviates from vertical, periodic inclination and azimuth measurements using instruments like gyroscopes and accelerometers are taken to accurately track well trajectory and ensure it is on target and within tolerances of planned profile. This is critical for objectives like reaching targeted reservoirs safely.
Q38: What is LWD or logging-while-drilling?
A: LWD tools transmit downhole data such as gamma ray, resistivity, porosity, density measurements in real-time as drilling progresses. This helps identify hydrocarbon bearing zones for targeting/steering without needing a wireline logging run later. Provides downhole conditions awareness and improved decision making.
Q4: What hole problems can cause stuck pipe?
A: Hole caving/sloughing, tight spots from washouts or underestimated dogleg severities, formation fluid invasion swelling certain shales, lost circulation zones, oversized/uncased sections, ledges/cavities, hole enlargement from washouts or fracturing around bit, volcanic rock, keyseating can all contribute to pipe becoming stuck if circulation is lost.
Q5: What events require a non-productive time (NPT) report?
A: NPT typically needs reporting for pipe/bit/BHA failures causing trip outs, stuck pipe incidents, well control kicks/blowouts, fires/explosions on rig, broken/lost equipment downhole, prolonged weather delays, cementing/casing issues, fishing jobs, hole problems stalling progress, rig mechanical issues impairing operation for long periods. Helps track losses versus drilling time.
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