| 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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some additional details on diamond reamers:
Reamer cutters and configurations: Diamond reamers employ different types of cutters to suit various drilling conditions. Polycrystalline diamond compact (PDC) cutters are commonly used due to their high wear resistance and cutting efficiency. The cutters can be arranged in different configurations, such as spiral, staggered, or straight patterns, depending on the desired cutting structure and drilling objectives.
Reamer applications in wellbore enlargement: Diamond reamers are primarily used for wellbore enlargement purposes. They are deployed to increase the diameter of the wellbore to accommodate casing installation, well completion equipment, or to improve well productivity. Reaming operations are performed at different stages of drilling, including while drilling the pilot hole, intermediate sections, or during the final hole section.
Reamer selection for specific formations: Diamond reamers are selected based on the characteristics of the formation being drilled. Different formations exhibit varying degrees of hardness, abrasiveness, and stability. Manufacturers offer a range of reamer designs and cutter options to address specific formation challenges, ensuring efficient cutting action and minimizing tool wear.
Reamer pilot hole enlargement: In pilot hole drilling, diamond reamers are employed to enlarge the initial hole diameter. This allows subsequent drilling tools, such as casing strings or larger diameter bits, to be deployed effectively. Pilot hole enlargement is crucial for wellbore stability, casing placement, and overall drilling success.
Reamer benefits in horizontal and extended-reach wells: Diamond reamers play a vital role in drilling horizontal and extended-reach wells. These wells often encounter challenges such as wellbore instability, tight clearances, and tortuous trajectories. Diamond reamers with specialized designs, such as adjustable or expandable reamers, are used to achieve accurate hole enlargement and maintain wellbore integrity in these complex well profiles.
Reamer monitoring and data analysis: Monitoring the performance of diamond reamers during drilling operations is essential to optimize their usage and detect any anomalies. Real-time data, including weight on bit, torque, temperature, and vibration measurements, is collected and analyzed. This information helps operators assess tool performance, identify potential issues, and make informed decisions to optimize drilling efficiency.
Reamer advancements in drilling automation: Diamond reamers are being integrated into drilling automation systems to enhance operational efficiency and reduce human intervention. Automated drilling systems utilize advanced sensors, algorithms, and control mechanisms to optimize drilling parameters and adjust reamer performance in real-time. This results in improved drilling accuracy, reduced drilling time, and enhanced overall wellbore quality.
Reamer environmental considerations: Diamond reamers contribute to environmentally conscious drilling practices. Their efficient cutting action and optimized drilling parameters help reduce the energy consumption and carbon emissions associated with drilling operations. Furthermore, advancements in reamer design and materials focus on minimizing waste generation and improving the recyclability of drilling tools.
Diamond reamers continue to be a vital tool in the drilling industry, enabling efficient and precise wellbore enlargement. Ongoing research and development efforts aim to enhance their performance, durability, and compatibility with emerging drilling technologies.
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 |
Q&A:
Q1: What well control factors impact deepwater reaming?
A1: Subseablowoutprevention, riser gas migration, well monitoring considerdynamic pressuresinduced bygreat water depths with narrow operating margins reinforcingbarriersagainst uncontrolled flowsfromhighpressurereservoirs accessed throughmarginal formationsover great distances beneathsea level.
Q2: Why is wellbore exposure importantfor reamed holes?
A2: Extended open hole accessprepared by enlargement,stabilization facilitate downholeconditionsanalysis, reservoir accessforlogging, sampling, well testingoptimizingproductionwithoutextendedcasingrequired beforecementingpermanent isolationintegrating exploratory and productive objectives.
Q3: How do carbonatesdiffer from shaleduring reaming?
A3: Vugs increaseinstabilityrisksfrom fluid losses requiringspecialized stabilizationto maintaincentricity. Soluble matricesnecessitatepreventingchemicalalterationstriggeringerosioncompared to inhibitedlow strengthformationspronetowellboredamageifnotproperlysupported.
Q4: What challenges arise when reamingHP/HT depleted zones?
A4: Compromised integrityunderextremesrequiresnarrowlycontrolled presssure/fluid managementwithoutfurtherdegradationmaintainingboreholeconditiondeliveringmultistagecompletionsplacing stimulationsand retrievable equipment selectivelyaccessing remnant reservesrecovering economicvolumesunsafelyaccessible conventionally.
Q5: Why are directional re-entrieschallenging post-reaming?
A5: Wideropen hole geometriesmustbe re-accessedwithintolerance re-establishing plannedprofiledimensionsoften times years laterrequiring specializedequipmentsteeringskillfullyintersecting original pathfor workovers, stimulationsafterconditionschangeddegradinghistorical surveyorientationfidelity.
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