| Customization: | Available |
|---|---|
| Type: | Core Drill |
| Usage: | Coring |
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Here are some additional details on the topic of diamond reamers:
Reamer design for abrasive formations: Diamond reamers are often employed in drilling operations involving abrasive formations, such as sandstone or shale. These formations can cause accelerated wear on cutting tools. To address this, diamond reamers can be designed with enhanced cutter durability, such as using polycrystalline diamond compact (PDC) cutters with increased diamond volume or incorporating wear-resistant coatings on the cutter surfaces.
Reamer selection for directional drilling: Directional drilling involves drilling wells that deviate from vertical to reach specific targets. Diamond reamers play a vital role in directional drilling by maintaining the desired wellbore trajectory and minimizing deviation. Reamers with stabilizer blades or gauge cutters can provide additional stability and control during the drilling process.
Reamer customization for offshore drilling: Offshore drilling operations present unique challenges due to the marine environment and the need to transport equipment to remote locations. Diamond reamers used in offshore drilling can be customized for factors such as corrosion resistance, compact size for ease of transportation, and compatibility with offshore drilling systems and equipment.
Reamer design for high-pressure, high-temperature (HPHT) drilling: HPHT drilling involves drilling in formations with extremely high pressures and temperatures, such as deep oil and gas reservoirs. Diamond reamers for HPHT drilling must be designed to withstand these extreme downhole conditions, including the selection of high-temperature resistant materials and robust cutter configurations.
Reamer selection for re-entry drilling: Re-entry drilling refers to drilling operations performed in existing wellbores. Diamond reamers used in re-entry drilling should be designed to navigate through the existing wellbore, removing obstructions and ensuring a smooth drilling path. Reamers with adjustable cutter arrangements or slim profiles may be preferred for re-entry drilling applications.
Reamer design for through-tubing operations: Through-tubing operations involve drilling or reaming through the production tubing or casing already installed in the wellbore. Diamond reamers designed for through-tubing applications should have a slim profile to fit through the restricted inner diameter of the tubing or casing while maintaining efficient cutting performance.
Reamer customization for unconventional drilling: Unconventional drilling techniques, such as hydraulic fracturing (fracking) or horizontal drilling, require specialized diamond reamers. These reamers are designed to handle the unique challenges of these techniques, including the need to create multiple perforations in the wellbore or to drill through horizontal sections with precision.
Reamer selection for well abandonment: Diamond reamers are also utilized in well abandonment or plug and abandonment (P&A) operations. These operations involve permanently sealing and isolating wells that are no longer in production. Diamond reamers used in P&A operations should be capable of efficiently removing casing or cement plugs while minimizing damage to the surrounding wellbore.
Reamer design for extended tool life: Extending the tool life of diamond reamers can help reduce operational costs and downtime. Reamers can be designed with features that enhance cutter protection, such as hard-facing or diamond-enhanced coatings, to increase tool longevity and reduce the frequency of cutter replacement.
Reamer compatibility with drilling automation: Drilling automation technologies, such as rig automation systems or autonomous drilling systems, are becoming increasingly prevalent in the industry. Diamond reamers can be designed to integrate with these automation systems, allowing for real-time data exchange, automated control, and optimization of drilling parameters.
These additional details showcase the diverse applications, customization options, and challenges addressed by diamond reamers in various drilling scenarios. By considering factors such as formation characteristics, drilling techniques, environmental conditions, and the specific objectives of the operation, operators can select or customize diamond reamers to optimize drilling performance, enhance tool life, and achieve successful drilling outcomes.
Q&A
Q1: Why surveying important for reaming deviated holes?
A1: Directional reaming requires tracking borehole position to ensure it stays within planned trajectory and tolerance limits. Surveying provides real-time correction feedback to steering equipment for accurately placing the well.
Q2: What causes reaming vibration and how to remedy it?
A2: Vibration usually stems from bit instability, wobbling due to lack of sufficient/effective stabilizers or reactive drilling parameters that load one side more. Reducing WOB, adjusting stabilizers, cleaning fluid system, and optimizing RPM typically alleviates the issue.
Q3: What is under-reaming and itsapplications?
A3: Under-reaming enlarges only the bottom hole section, leaving the upper part unchanged. It's used to form extended reach laterals, drill out casing bottoms, enlarge below obstructions like casing without cascading enlargemnt up the entire hole.
Q4: Why is reaming important for oil &gas production?
A4: Reaming prepares a smooth, consistent bore to install production casing/liners without defects or washouts. This protects reservoirs and facilitates cement bonding for zonal isolation/well integrity during completion/extraction.
Q5: What is hole-opening and when is it applied?
A5: Hole-opening involves reaming the open hole sections after mud casing to enlarge/stabilize the bore before running production casing/liner. It prepares a proper reservoir drilling environment before hydrocarbon recovery activities.
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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