| Type: | Core Drill |
|---|---|
| Usage: | Coring |
| Certification: | CE, ISO |
| Application: | Reaming |
| Industry: | Geological Survey |
| Payment Term: | Tt or LC |
| Samples: |
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| Customization: |
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Audited Supplier Some more details about diamond reamers in drilling conditions:
Reaming Shell Performance Evaluation: The performance of diamond reamers can be evaluated through various metrics and indicators. These include the rate of penetration (ROP), which measures the drilling speed, the quality of the core samples obtained, the overall drilling efficiency, and the durability of the reaming shell. Performance evaluation helps assess the effectiveness of the reaming shell and identify areas for improvement.
Reaming Shell PDC Cutters: Polycrystalline diamond compact (PDC) cutters are commonly used in diamond reamers. PDC cutters consist of a layer of synthetic diamond particles bonded together with a cemented tungsten carbide substrate. These cutters provide excellent cutting performance and durability, making them well-suited for challenging drilling conditions.
Reaming Shell Stability in Unconsolidated Formations: When drilling in unconsolidated formations such as loose sands or gravels, maintaining stability can be challenging. Diamond reamers designed for such formations often include features such as stabilizing ribs or blades to prevent the reaming shell from getting stuck or deviating from the desired drilling path.
Reaming Shell in High-Temperature Environments: Diamond reamers can be engineered to withstand high-temperature environments encountered in certain drilling operations, such as geothermal drilling or drilling in high-temperature oil and gas reservoirs. Special materials and coatings are used to enhance the thermal stability and performance of the reaming shell under extreme heat conditions.
Reaming Shell in Underbalanced Drilling: Underbalanced drilling techniques involve maintaining the wellbore pressure lower than the formation pressure. Diamond reamers used in underbalanced drilling should be designed to handle the specific challenges associated with this technique, such as minimizing fluid invasion into the formation and preventing differential sticking.
Reaming Shell in Extended Reach Drilling: Extended reach drilling (ERD) involves drilling horizontal or highly deviated wellbores over long distances. Diamond reamers used in ERD operations should be designed to withstand the increased torque and bending stresses encountered in these drilling scenarios. The reaming shell's structural integrity and stability are crucial for achieving successful ERD outcomes.
Reaming Shell in Geotechnical Drilling: Diamond reamers find applications in geotechnical drilling for site investigation and soil sampling. They can be used to obtain high-quality core samples in various soil types and rock formations. The reaming shell's design and configuration are optimized for efficient cutting and reliable core recovery in geotechnical drilling projects.
Reaming Shell in Mining Exploration: Diamond reamers are extensively used in mining exploration to obtain core samples for assessing mineral deposits. They are employed in techniques such as diamond core drilling, reverse circulation drilling, and sonic drilling. The reaming shell's performance and core recovery capabilities are critical for accurate mineral exploration and resource estimation.
Reaming Shell in Water Well Drilling: Diamond reamers play a vital role in water well drilling, ensuring efficient drilling and reliable well construction. They are designed to handle a variety of formations encountered in water well drilling, including soft sediments, hard rock, and fractured formations. The reaming shell's cutting structure and durability are tailored to meet the challenges of water well drilling.
Reaming Shell Environmental Considerations: Environmental considerations are important in drilling operations, and diamond reamers can contribute to minimizing the environmental impact. For example, the use of water-based drilling fluids instead of oil-based fluids reduces the environmental footprint. Additionally, proper disposal or recycling of diamond reamers and associated drilling waste helps minimize pollution and ensure compliance with environmental regulations.
Reaming Shell Innovations: The field of diamond reamers continues to evolve with ongoing research and technological advancements. Innovations include the development of new diamond materials, advanced cutting structures, improvements in cooling and lubrication systems, and the integration of smart technologies for real-time monitoring and control. These innovations aim to enhance drilling performance, efficiency, and environmental sustainability.
Reaming Shell Case Studies: Case studies and real-world examples provide valuable insights into the application and performance of diamond reamers. They showcase successful drilling projects, challenges encountered, and the role of reaming shells in achieving project objectives. Reviewing case studies can help drilling professionals learn from past experiences and apply best practices in their own projects.
These additional details provide further depth and knowledge about diamond reamers in drilling conditions. By staying informed about these aspects and advancements, drilling professionals can make informed decisions, optimize performance, and contribute to the advancement of the drilling industry.
Model or type:
Specifications
| ITEM | DIAMOND BIT | Reaming shell | |||||
| "Q" Series Wireline assembly |
Size | Bit Outer Diameter | Bit Inner Diameter | ||||
| mm | inch | mm | inch | mm | inch | ||
| AQ | 47.60 | 1.88 | 26.97 | 1.06 | 48.00 | 1.89 | |
| BQ | 59.50 | 2.35 | 36.40 | 1.43 | 59.90 | 2.36 | |
| NQ | 75.30 | 2.97 | 47.60 | 1.88 | 75.70 | 2.98 | |
| HQ | 95.58 | 3.77 | 63.50 | 2.50 | 96.00 | 3.78 | |
| PQ | 122.00 | 4.80 | 84.96 | 3.35 | 122.60 | 4.83 | |
| Metric T2 Series | 36 | 36.0 | 1.417 | 22.0 | 0.866 | 36.3 | 1.429 |
| 46 | 46.0 | 1.811 | 32.0 | 1.260 | 46.3 | 1.823 | |
| 56 | 56.0 | 2.205 | 42.0 | 1.654 | 56.3 | 2.217 | |
| 66 | 66.0 | 2.598 | 52.0 | 2.047 | 66.3 | 2.610 | |
| 76 | 76.0 | 2.992 | 62.0 | 2.441 | 76.3 | 3.004 | |
| 86 | 86.0 | 3.386 | 72.0 | 2.835 | 86.3 | 3.398 | |
| 101 | 101.0 | 3.976 | 84.0 | 3.307 | 101.3 | 3.988 | |
T Series |
TAW | 47.6 | 1.875 | 23.2 | 1.31 | 48.0 | 1.89 |
| TBW | 59.5 | 2.345 | 44.9 | 1.77 | 59.9 | 2.36 | |
| TNW | 75.3 | 2.965 | 60.5 | 2.38 | 75.7 | 2.98 |
|
| Reaming classification | |
| T series | T36,T46,T56,T66,T76,T86 |
| Cable series | AWL,BWL,NWL,HWL,PWL(Front end,rear end) |
| WT series | RWT,EWT,AWT,BWT,NWT,HWT(single tube/double tube) |
| T2/T series | T256,T266,T276,T286,T2101,T676,T686,T6101,T6116,T6131,T6146,T6H |
| WF series | HWF,PWF,SWF,UWF,ZWF |
| WG series | EWG,AWG,BWG,NWG,HWG(single tube/double tube |
| WM series | EWM,AWM,BWM,NWM |
| Others | NMLC,HMLC,LTK48,LTK60,TBW,TNW,ATW,BTW,NTW,AQTK NXD3,NXC,T6H,SK6L146,TT46,TB56,TS116,CHD101 |
Q&A:
1, How problematic is reamer balling or clogging in certain rock types?
Balling occurs when cuttings clump on the face instead of evacuating, impairing reaming. Black shale, marl, clays and rocks containing zeolites or chlorides are most prone to balling and will require higher fluid pressures, new seal designs, or sacrificial bushings to prevent.
2, How can reamer design address issues like impact damage or balling?
Strategies involve reducing cutter protrusion, tougher compacts/coatings, impact pads, kick-out bushings or inserts, gauging rings, controlled fluid nozzle angles, integrated cleaning jets, junk slots and cutter layouts optimized for chip flow in sensitive formations.
3, Are there field or lab testing services for new reamer prototypes?
Leading manufacturers operate full-scale test tunnels with variable strata for evaluating reaming performance under controlled simulated production conditions. They can also conduct customized prototyping, simulations and field trials for challenging new applications.
4, What international certifications do reamers require for global sales?
Major certifications include CE Marking (Europe), EAC (Eurasian Economic Union), Ukraine GOST-R, CCC (China), BIS (India), PESO (Hazards proofing in India), RCM Mark (Australia/New Zealand), and ISO 9001 quality management.
5, What are some real-world reaming case studies clients have conducted?
Publicized projects include the Marmaray rail tunnel below the Bosphorus (Turkey), Gotthard Base Tunnel (Switzerland), Sydney Metro Tunnels, Denver Airport tunnel expansions, Panama Canal Locks bypass channels, and mining projects in South Africa's platinum belt involving hard dolerite and chromitite seams.
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