| Type: | Core Drill |
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| 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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Here are some additional details about how a diamond reaming shell works:
Diamond Types: Diamond reaming shells typically utilize industrial-grade diamonds, which are carefully selected for their hardness and durability. These diamonds are often synthetic or natural diamonds with high levels of hardness and abrasion resistance.
Diamond Distribution: The diamonds on the reaming shell are strategically placed and embedded in a matrix of metal, such as tungsten carbide. The distribution of the diamonds can vary, with different patterns or densities depending on the specific design of the reaming shell.
Cutting Mechanism: The cutting mechanism of a diamond reaming shell involves both grinding and shearing actions. As the diamonds come into contact with the rock formation, they grind and abrade the material, breaking it into smaller particles. Additionally, the sharp edges and facets on the diamonds contribute to the shearing action, assisting in the removal of material.
Reaming Shell Design: The design of the diamond reaming shell plays a crucial role in its performance. Factors such as the outer diameter, inner diameter, shell thickness, and overall geometry are carefully engineered to ensure effective cutting and debris removal. The shell design also considers factors like stability, strength, and resistance to wear and damage.
Fluid Circulation: During the reaming process, drilling fluid or mud is circulated through the drill string and exits through nozzles or openings near the reaming shell. The fluid serves multiple purposes, including cooling the diamonds, lubricating the cutting action, and carrying away the cuttings and debris from the borehole.
Reaming Shell Sizes: Diamond reaming shells are available in various sizes to accommodate different borehole enlargement requirements. The selection of the appropriate shell size depends on factors such as the desired borehole diameter, the existing borehole size, and the drilling equipment being used.
Application Limitations: While diamond reaming shells are highly effective in many drilling applications, they do have limitations. They are most suitable for formations that are moderately to highly abrasive, such as hard rock or consolidated sediments. In softer formations or formations with high clay content, alternative reaming methods may be more appropriate.
Wear and Replacement: Over time, the diamonds on the reaming shell will wear down, reducing their cutting effectiveness. Monitoring the wear rate is essential to maintain optimal performance. When the diamonds become significantly worn or damaged, the reaming shell will need to be replaced with a new one to ensure efficient borehole enlargement.
By understanding the intricacies of a diamond reaming shell and considering factors such as design, cutting mechanism, fluid circulation, and limitations, drillers can make informed decisions and effectively utilize this tool in various drilling applications.
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 |
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