| Customization: | Available |
|---|---|
| Type: | Core Drill |
| Usage: | Coring |
|
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Here are some more details about diamond reamers:
Reamer maintenance and refurbishment: Diamond reamers require regular maintenance and refurbishment to ensure optimal performance and longevity. This may involve cleaning the reamer, inspecting and replacing worn or damaged cutters, and repairing any structural issues. Proper maintenance and refurbishment practices help extend the reamer's lifespan, reduce downtime, and enhance drilling efficiency.
Reamer selection for different formations: Different rock formations and geological conditions require specific reamer designs and cutter materials. For example, a diamond reamer with PDC cutters may be suitable for drilling through soft to medium-hard formations, while a reamer with natural diamond cutters may be preferred for extremely hard formations. Selecting the appropriate reamer for the target formation is crucial for efficient drilling and cutter longevity.
Reamer compatibility with drilling fluids: Diamond reamers should be compatible with the drilling fluids or muds used during drilling operations. Compatibility considerations include the chemical compatibility of the reamer materials with the drilling fluid additives, prevention of excessive wear or erosion caused by the fluid, and effective removal of cuttings from the wellbore.
Reamer design for debris management: Efficient removal of cuttings and debris from the wellbore is essential for successful drilling operations. Diamond reamers can be designed with features such as spiral blades, junk slots, or specialized cutters to effectively transport cuttings to the surface or through the annular space between the wellbore and the casing.
Reamer optimization for drilling efficiency: Diamond reamers can be optimized for drilling efficiency by considering factors such as cutter placement, cutter size, cutter density, and hydraulic design. These optimizations aim to achieve maximum cutting efficiency, reduced torque and drag, and improved overall drilling performance.
Reamer compatibility with drilling software: Drilling software programs are used to monitor and control drilling operations. Diamond reamers can be compatible with drilling software, allowing real-time monitoring of drilling parameters and integration with automated control systems. This compatibility facilitates data-driven decision-making, optimization, and remote drilling operations.
Reamer design for reduced vibration: Excessive vibration during drilling can lead to reduced drilling performance, premature wear of the reamer and other drilling components, and potential damage to the wellbore. Diamond reamers can be designed with features to minimize vibration, such as balanced cutter arrangements, dampening mechanisms, or optimized hydraulic flow paths.
Reamer selection for wellbore quality: Diamond reamers play a crucial role in achieving a high-quality wellbore. The selection of the appropriate reamer depends on factors such as the desired wellbore diameter, smoothness, and verticality. Reamers with specialized features, such as gauge cutters or stabilizer blades, can help maintain wellbore integrity and improve drilling accuracy.
Reamer design for reduced sticking: Sticking, or the adherence of the drilling assembly to the wellbore, can pose challenges during drilling. Diamond reamers can be designed with features to reduce sticking, such as low-friction coatings, optimized hydraulic flow, or specialized cutters that minimize contact with the wellbore wall.
Reamer compatibility with well logging tools: Well logging tools are used to gather data about the geological formations encountered during drilling. Diamond reamers should be compatible with these tools, allowing their passage through the wellbore without interference and ensuring accurate data acquisition.
These additional details further highlight the importance of reamer maintenance, compatibility considerations, optimization techniques, and their role in achieving drilling efficiency and overall wellbore quality. By taking into account these factors, operators can maximize the performance and effectiveness of diamond reamers in various drilling applications.
Q&A
Q1: What drilling fluids are suitable?
A1: Water-based commonly but oil/polymer muds may better suspend cuttings in shale/weak rock.
Q2: Why survey the borehole?
A2: Ensures straightness within tolerance for installation and flags needed steering corrections.
Q3: What is the purpose of stabilizers?
A3: Centers reamer to prevent damage and guide a straighter borehole without stalling or wobbling.
Q4: How can reaming performance be optimized?
A4: By monitoring parameters, inspecting cuttings, surveying frequently, cleaning fluid systems, stabilizing equipment, adjusting WOB/RPM, changing bits timely. Proper planning and execution is key.
Q5: What is the significance of pressure in reaming?
A5: Proper hydraulic pressure is needed to power downhole motors that rotate the reamer and facilitate flushing/fracturing of cuttings from the borehole. Pressure must be controlled to avoid exceeding rock strength.
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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