| Customization: | Available |
|---|---|
| Type: | Core Drill |
| Usage: | Coring |
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In drilling conditions, a diamond reamer serves several important functions:
Enlarging the Borehole: The primary purpose of a diamond reamer is to enlarge the diameter of the borehole. It is typically used after the initial pilot hole has been drilled using a core bit. The diamond reamer is attached to the bottom of the drill string and rotates to cut and remove additional material from the walls of the hole, increasing its diameter.
Smoothing the Borehole Surface: As the diamond reamer rotates, it smoothens the surface of the borehole. This helps remove any irregularities or roughness left behind by the core bit and creates a more uniform borehole profile. Smoothing the borehole surface can enhance the efficiency of subsequent drilling operations and improve the overall quality of the drilling process.
Preparing the Borehole for Core Retrieval: The diamond reamer plays a crucial role in preparing the borehole for core retrieval. By enlarging the diameter of the hole, it creates sufficient space for the core barrel to pass through and retrieve the core sample intact. The smooth borehole surface resulting from reaming helps facilitate the smooth extraction of the core.
Debris Removal: During drilling, the diamond reamer helps in removing drilling debris and cuttings from the borehole. The reaming action of the diamonds on the reamer's surface helps dislodge and push the cuttings out of the hole, allowing for better visibility and preventing the accumulation of debris that could impede drilling progress.
Maintaining Hole Straightness: The diamond reamer contributes to maintaining the straightness and trajectory of the borehole. It follows the path established by the pilot hole and helps guide the drill string in the desired direction. This helps ensure accurate drilling and alignment with the target zone or geological formation.
Enhancing Drilling Efficiency: By enlarging the borehole and smoothing the surface, the diamond reamer improves drilling efficiency. It reduces the friction between the drill string and the borehole wall, allowing for smoother advancement of the drill string and reducing the energy required for drilling. This can result in faster drilling rates and increased overall productivity.
Protecting the Core Bit: The diamond reamer also acts as a protective barrier for the core bit. It helps shield the core bit from direct contact with the borehole wall, reducing the wear and extending the life of the core bit. The reamer takes the brunt of the cutting and abrasive forces, preserving the core bit for longer and reducing the frequency of replacement.
Overall, a diamond reamer is a critical component in coring drilling operations. It enlarges the borehole, smoothens the surface, aids in debris removal, maintains hole straightness, enhances drilling efficiency, and protects the core bit. These functions collectively contribute to successful core retrieval and efficient drilling in various mining and exploration 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 |
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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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