| Customization: | Available |
|---|---|
| Type: | Core Drill |
| Usage: | Coring |
|
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some more details on the topic of diamond reamers:
Reamer design for managed pressure drilling (MPD): Managed pressure drilling is a technique used to precisely control the wellbore pressure during drilling operations, particularly in challenging or narrow pressure windows. Diamond reamers designed for MPD should have advanced hydraulic systems, pressure control mechanisms, and optimized cutter configurations to maintain the desired pressure regime while effectively cutting through the formation. These reamers play a crucial role in ensuring safe and efficient drilling in MPD applications.
Reamer selection for re-entry drilling: Re-entry drilling involves drilling a new wellbore from an existing wellbore, often in sidetrack or re-entry operations. Diamond reamers can be selected for re-entry drilling based on factors such as wellbore restrictions, formation characteristics, and specific drilling objectives. Reamers with compact sizes, specialized cutter arrangements, or adjustable cutter configurations are commonly used to navigate existing wellbores and achieve successful re-entry drilling.
Reamer customization for extended reach horizontal drilling: Extended reach horizontal drilling (ERHD) involves drilling long horizontal sections from a single wellbore. Diamond reamers can be customized for ERHD operations to enhance drilling efficiency, maintain borehole quality, and optimize well productivity. Customization options may include specific cutter geometries, gauge cutters, or advanced stabilization features to ensure accurate well placement and effective drilling performance in ERHD applications.
Reamer design for through-tubing operations: Through-tubing operations involve performing various interventions or drilling operations through existing well tubulars, such as casing or tubing. Diamond reamers designed for through-tubing operations should have compact sizes and specialized cutter configurations to navigate through restricted wellbore dimensions. These reamers may feature specific cutter geometries, adjustable cutter arms, or advanced cutting structures to effectively remove obstructions and perform interventions through tubing.
Reamer selection for well abandonment: Well abandonment refers to the process of permanently sealing and isolating inactive or depleted wells. Diamond reamers can be selected for well abandonment based on factors such as wellbore conditions, casing sizes, and cementing requirements. Reamers with specialized cutter designs, debris removal capabilities, or cementing aids can facilitate efficient well abandonment operations while ensuring proper well integrity and environmental protection.
Reamer customization for drilling with non-aqueous fluids: Non-aqueous drilling fluids, such as oil-based or synthetic-based muds, offer specific advantages in certain drilling operations. Diamond reamers can be customized to perform optimally with non-aqueous fluids by incorporating cutter materials and designs that are compatible with these fluids' properties. Customized reamers can withstand the lubricity, viscosity, and chemical characteristics of non-aqueous fluids, ensuring efficient cutting performance and minimizing operational challenges.
Reamer design for geosteering applications: Geosteering involves real-time wellbore trajectory control to optimize well placement within reservoirs. Diamond reamers play a crucial role in geosteering by providing accurate and reliable information about the formation encountered while drilling. Reamers designed for geosteering applications may include advanced sensors, data acquisition systems, or specialized cutter designs that enable precise formation evaluation, aiding in optimal wellbore placement.
Reamer selection for drilling with rotary drilling systems: Rotary drilling systems, such as roller cone bits or polycrystalline diamond compact (PDC) bits, are commonly used in drilling operations. Diamond reamers can be selected to work in conjunction with rotary drilling systems, considering factors such as bit type, formation characteristics, and drilling objectives. Reamers that complement the drilling system's performance, provide effective cuttings removal, and enhance drilling efficiency are often chosen for rotary drilling applications.
Reamer customization for specific drilling fluid properties: Drilling fluids, also known as muds, can vary in composition and properties depending on the drilling operation's requirements. Diamond reamers can be customized to work optimally with specific drilling fluid properties, such as viscosity, density, or chemical additives. Customizations may include specialized cutter designs, cutter coatings, or hydraulic features that ensure efficient cutting performance and mitigate any adverse effects caused by the drilling fluid.
Reamer design for drill-in operations: Drill-in operations involve drilling the final section of a well and simultaneously completing it without pulling out of the hole. Diamond reamers designed for drill-in operations should have robust cutter structures, efficient cutting configurations, and effective cuttings evacuation mechanisms. These reamers play a crucial role in achieving efficient drilling and completion in a single run, minimizing operational time and costs.
These additional details provide further insights into the applications, customization options, and considerations related to diamond reamers in various drilling scenarios. By selecting or customizing diamond reamers to address specific drilling challenges, operators can optimize drilling performance, improve efficiency, and achieve successful outcomes in a wide range of drilling operations.
Q&A
Q1: How does bit hydraulics impact friction during reaming?
A1: Proper flow cleans cuttings and reduces coefficient of friction between reamer and borehole wall. Insufficient flow increases drag/vibration risks while too much erodes hole quality without improving ROP. Matching parameters to geology optimizes hydraulics.
Q2: What is the significance of reaming pressures?
A2: Excessive pressures can induce fractures/lost returns whereas too low can stall reaming. Proper control as per formations assists wellbore integrity and cleaning. Monitoring aids fishing operations if reamers get stuck downhole.
Q3: What directional reaming techniques are commonly applied?
A3: Slide/rotary/motor techniques utilize downhole steering tools rotated either by drillstring rotation or downhole mud motors. This allows planned trajectory building when reaming lateral sections or directionally. Survey accuracy is critical.
Q4: Why are formations important for reaming operations?
A4: Proper lithological understanding guides reaming parameters, fluid selection and anticipates pressures/hole conditions. This optimizes ROP, equipment performance and prevents wellbore instability issues. Knowledge protects productive zones and personnel.
Q5: What pressure control techniques are applied while reaming?
A5: Parameters like pump rates, choke/kill line pressures are carefully modulated based on downhole sensors/readings to maintain desired overbalance preventing losses/fractures. BOP stacks facilitate well kills if lost circulation occurs warranting additional precautions.
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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