| 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 mineral exploration and geological survey:
Reamer cutter materials: Diamond reamers utilize various cutter materials depending on the drilling conditions and formation characteristics. Common cutter materials include natural diamonds, polycrystalline diamond compact (PDC), and thermally stable polycrystalline (TSP). Each material offers different advantages in terms of wear resistance, cutting efficiency, and durability. The choice of cutter material depends on factors such as the hardness of the formation, drilling speed, and desired longevity of the reamer.
Reamer stabilization techniques: Maintaining drilling stability is crucial for successful mineral exploration and geological survey. Diamond reamers can incorporate stabilization techniques to enhance stability during drilling operations. These techniques may include the use of stabilizer blades, centralizers, or other stabilizing features that reduce vibrations, prevent deviation, and ensure accurate wellbore placement.
Reamer compatibility with wireline systems: Wireline drilling is a technique commonly used in mineral exploration to retrieve continuous core samples from deep boreholes. Diamond reamers can be designed to be compatible with wireline systems, allowing for efficient core recovery and wireline tool deployment. This compatibility ensures smooth wireline operations and minimizes the risk of equipment damage or sample loss.
Reamer optimization for specific minerals: Different minerals have varying hardness, abrasiveness, and drilling characteristics. Diamond reamers can be optimized for specific minerals or mineral groups to enhance drilling performance. For example, reamers designed for diamond exploration may have specialized features to withstand the extreme abrasiveness of diamond-bearing formations, while reamers for coal exploration may focus on efficient cuttings removal and stabilization in soft coal seams.
Reamer deployment in geotechnical engineering: In addition to mineral exploration and geological survey, diamond reamers find applications in geotechnical engineering. They are used for drilling boreholes in soil, rock, or mixed formations to gather subsurface information for engineering design, foundation analysis, and construction purposes. Diamond reamers designed for geotechnical applications may have specific features to address the challenges of varying soil and rock types encountered in civil engineering projects.
Reamer compatibility with drilling additives: Drilling additives, such as mud additives or lubricants, are often used to enhance drilling performance and protect the drilling equipment. Diamond reamers should be compatible with these drilling additives, ensuring that they function effectively without compromising the reamer's cutting efficiency or structural integrity. Compatibility considerations include the chemical compatibility of the reamer materials with the additives and the prevention of additive build-up or clogging on the reamer's surface.
Reamer retrieval and disassembly: After completion of drilling operations, diamond reamers need to be retrieved from the borehole for maintenance, inspection, or reuse. Depending on the drilling technique and equipment, reamer retrieval may involve wireline retrieval tools, core barrel retrieval, or disassembly of the drilling assembly. Proper retrieval and disassembly procedures should be followed to ensure safe handling and prevent damage to the reamer or other drilling components.
Reamer design for high-temperature environments: In certain drilling applications, such as geothermal drilling or drilling in high-temperature formations, diamond reamers need to withstand elevated temperatures without compromising their performance. Reamer designs for high-temperature environments may incorporate specialized materials, coatings, or cooling mechanisms to ensure the reamer's integrity and cutting effectiveness in extreme heat conditions.
Reamer compatibility with underreaming operations: Underreaming is a technique used to enlarge the wellbore diameter in specific sections of the drilling operation. Diamond reamers can be designed or selected to be compatible with underreaming operations. They should have the necessary features, such as expandable or adjustable cutters, to achieve the desired wellbore enlargement while maintaining stability and efficient cuttings removal.
Reamer performance data analysis: Collecting and analyzing performance data from diamond reamers can provide valuable insights into drilling efficiency, tool longevity, and overall operational optimization. By tracking metrics such as rate of penetration, torque, weight on bit, and vibration levels, operators can identify trends, optimize drilling parameters, and make informed decisions regarding reamer selection, maintenance, or modification.
These additional details offer further depth in understanding the features, applications, and considerations related to diamond reamers in mineral exploration, geological survey, and geotechnical engineering. As always, consulting with experts in the field and staying informed about the latest industry developments will contribute to utilizing diamond reamers effectively in drilling projects.
Q&A
Q1: Can reamers be repaired or redressed?
A1: Experienced technicians can sometimes selectively redress bits to restore performance short-term.
Q2: How is a reamer attached to the drill string?
A2: Via threaded box and pin connections allowing rotation and weight transfer.
Q3: What is optimal rotation speed?
A3: Typically 80-200 RPM, depending on formation. Too slow/fast causes damage without improved ROP.
Q4: How much weight should be applied?
A4: 5,000-20,000 lbs depending on type, design, diameter but may need adjusting based on ROP.
Q5: What is the purpose of flushing?
Clears cuttings, cools bit, transports cuttings out - crucial for penetration, life.
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 |
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| 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 |
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