| Customization: | Available |
|---|---|
| Type: | Core Drill |
| Usage: | Coring |
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Here are some more details on the topic of diamond reamers:
Reamer design for drilling in unconventional reservoirs: Unconventional reservoirs, such as shale or tight formations, require specialized drilling techniques. Diamond reamers can be designed to address the challenges associated with drilling in these reservoirs, including high levels of rock hardness, variable formations, and complex lithology. Reamers with robust cutter structures, advanced cutting technologies, and optimized hydraulic designs can enhance drilling efficiency and maximize well productivity in unconventional reservoirs.
Reamer selection for directional drilling: Directional drilling involves drilling wells that deviate from vertical to access specific target zones. Diamond reamers play a crucial role in directional drilling by providing accurate control over the wellbore trajectory. Reamers with adjustable cutter configurations, steerable technologies, or specific gauge designs can be selected to achieve the desired wellbore path and successfully reach the target zone.
Reamer customization for wellbore enlargement: Wellbore enlargement operations involve increasing the diameter of the wellbore to accommodate larger completion components or to enhance production. Diamond reamers can be customized for wellbore enlargement by incorporating expandable cutter arms, adjustable cutter configurations, or specialized cutting structures capable of removing a significant amount of formation material. These customized reamers ensure precise wellbore enlargement while maintaining drilling efficiency.
Reamer design for drilling through interbedded formations: Interbedded formations consist of alternating layers of different rock types, which can present challenges during drilling. Diamond reamers designed for drilling through interbedded formations should have cutter configurations and cutter materials capable of effectively cutting through varying rock types encountered in the formation. Reamers with optimized cutter geometry, enhanced cutter durability, and efficient cuttings evacuation mechanisms are commonly used for drilling in interbedded formations.
Reamer selection for geotechnical drilling: Geotechnical drilling involves drilling wells for soil or rock sampling, site investigation, or geotechnical analysis. Diamond reamers can be selected based on the specific requirements of geotechnical drilling, such as the need for precise sample collection, minimal disturbance to the surrounding formations, or efficient cuttings removal. Reamers with specialized cutter designs, sample chambers, or advanced stabilizer systems are commonly used in geotechnical drilling applications.
Reamer customization for wellbore stability: Wellbore stability is a critical consideration in drilling operations to prevent issues such as wellbore collapse or formation damage. Diamond reamers can be customized to enhance wellbore stability by incorporating features such as stabilizer blades, gauge cutters, or specialized cutter arrangements that provide optimal hole wall support and prevent wellbore instability.
Reamer design for drilling in high-pressure/high-temperature (HP/HT) environments: High-pressure/high-temperature drilling environments present extreme conditions that require specialized equipment. Diamond reamers designed for HP/HT drilling should be capable of withstanding high temperatures and pressures while maintaining efficient cutting performance. These reamers may feature advanced cutter materials, robust cutter structures, or innovative cooling systems to ensure successful drilling operations in HP/HT environments.
Reamer selection for offshore drilling: Offshore drilling operations have unique challenges, including limited space, difficult drilling conditions, and the need for efficient cuttings evacuation. Diamond reamers can be selected for offshore drilling based on their compact design, optimized hydraulic performance, and reliable cutting performance. Reamers with enhanced durability, corrosion resistance, and ease of maintenance are often preferred for offshore drilling applications.
Reamer customization for specific drilling rig systems: Diamond reamers can be customized to be compatible with specific drilling rig systems, such as rotary steerable systems or mud motor assemblies. These customizations ensure seamless integration and efficient performance when using diamond reamers with different drilling rig technologies, allowing for optimized drilling operations and improved overall drilling efficiency.
Reamer design for reduced vibration and drillstring damage: Excessive vibration during drilling operations can lead to drillstring damage, reduced drilling efficiency, and increased wear on equipment. Diamond reamers can be designed to minimize vibration and mitigate the risk of drillstring failures. Reamers with optimized cutter configurations, advanced damping systems, or vibration-resistant designs are commonly employed to reduce vibration and enhance drilling performance.
These additional details offer 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: What role does hydraulics play in directional reaming?
A1: Directional motors rotate reamers when drilled at an angle. Proper flow/pressure transports cuttings out and prevent differential sticking while steering tools. Surfactants reduce necessary pressures.
Q2: Why is reaming required before casing cementing?
A2: Reaming cleans the hole and forms a protective wellbore against which cement bonds quality casing in place for zonal isolation. It eliminates washouts and facilitates cement displacement during cementing operation.
Q3: What lithologies require specialized reaming considerations?
A3: Shales are prone to swelling/sloughing requiring inhibited mud and non-plastic techniques. Chalks/carbonates dissolve, so mud weight/toxicity is critical. Hard formations necessitate intensive cleaning, high WOB, abrasion-resistant bits.
Q4: What factors influence reamer selection?
A4: Anticipated formations, borehole conditions, pressures, drilling fluid compatibility, hole sizes/enlargement needs, rig limitations, operational objectives like straightness and ROP dictate optimal reamer grade, design for the job.
Q5: What are common redressing techniques for reamers?
A5: Selective use of diamond dressing/grinding wheels or rolls replace worn or broken cutting structures to restore aggressiveness. This extends bit run life before full replacement is required but compromises original profile.
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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