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Mosaic01-58-24 Min | Meyd-605

| Depth (m TVD) | Lithology (pre‑lim) | Mosaic observations | |---------------|---------------------|---------------------| | 1 200 – 1 350 | Fine‑grained sandstone (A1) | Uniform bedding, grain‑size contrast low; occasional thin laminae (~1 cm). | | 1 350 – 1 550 | Interbedded siltstone‑shale (B) | Distinct alternating light/dark bands; high‑frequency reflectivity indicates lamination. | | 1 550 – 1 720 | Coarse‑grained quartz arenite (A2) | Prominent cross‑bedding, small-scale troughs (0.5–2 cm). | | 1 720 – 1 950 | Carbonate cemented sandstone (C) | Bright, glossy surfaces; vugs (1–5 cm) visible as dark voids. | | 1 950 – 2 200 | Siliceous mudstone (D) | Low‑contrast, fine‑scale fabric; occasional bioturbation traces. | | 2 200 – 2 450 | Thin‑bedded sandstone‑shale couplets (E) | Repetitive 5–10 cm cycles; potential tidal influence. | | 2 450 – 2 800 | Massive sandstone (F) | High reflectivity, occasional fracture clusters. |

| Feature | Depth (m TVD) | Orientation (Dip/Strike) | Length/Extent | Interpretation | |---------|---------------|--------------------------|---------------|----------------| | Dominant bedding | 1 200 – 2 800 | Dip 4–7 ° NE | Continuous | Gentle fore‑tilt, consistent with basin‑wide dip. | | Open‑set fractures | 1 560 – 1 590 | Dip 55 ° NW, strike 030° | 0.3–2.5 cm apertures, up to 15 cm length | Likely hydraulic/tectonic origin; potential flow conduits. | | Closed‑set shear zones | 2 020 – 2 040 | Dip 30 ° SE, strike 120° | 5–12 cm spacing | Possible re‑activation of older fault. | | Fault scarps | 2 350 – 2 380 | Dip 70 ° SW, throw ≈ 1.8 m | Visible offset of bedding | Minor normal fault, may act as a seal. | | Vugular networks | 1 740 – 1 760 | N/A | 1–5 cm diam., irregular distribution | Diagenetic dissolution; potential porosity contributors. |

| Issue | Depth (m) | Description | Impact | |-------|-----------|-------------|--------| | Minor tool stall | 1 983 – 1 985 | Brief loss of rotation (≈ 3 s) due to high‑density mud cake. | Small data gap; filled by overlapping frames. | | High‑temperature zone | 2 420 – 2 430 | Temperature rose to 12.3 °C (above nominal 10 °C). | No effect on image quality; recorded for completeness. | | Washout | 2 560 – 2 570 | Slight enlargement of borehole (diameter + 0.3 in) observed in optical image. | May affect subsequent logging; recommend re‑casing or pressure control. |

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| Metric | Value | Acceptance Criteria | |--------|-------|----------------------| | Coverage % | 99.6 % | ≥ 95 % | | SNR (dB) | 35 dB | ≥ 28 dB | | Depth repeatability | ± 0.10 m | ≤ ± 0.2 m | | Radial distortion | 0.2 % | ≤ 0.5 % | | Frame loss | 0 (except 2 m gap) | ≤ 1 % | Meyd-605 Mosaic01-58-24 Min

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Prepared by:
[Your Name] – Senior Borehole Imaging Specialist
[Company / Department]

Contact: [email] – [phone]

End of Report

The Meyd‑605 well was logged using the Mosaic01‑58‑24 Min high‑resolution borehole imaging system. This report synthesizes the acquisition parameters, data quality assessment, key geological observations, and initial interpretations. Overall, the dataset provides a clear, continuous view of the formation’s structural and textural features from 1 200 m to 2 800 m TVD (True Vertical Depth). The imaging resolution (≈ 0.5 cm) is sufficient to identify thin bedding, micro‑fracture networks, and subtle diagenetic fabrics that are critical for reservoir characterization and wellbore stability assessments.

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Many CCTV and drone systems autogenerate filenames using a pattern: [DeviceID]-[Channel] [Effect]-[Minute]-[Second]-[Frame].
Thus: Meyd-605 (camera unit ID) Mosaic01 (pixelation filter or mosaic tile pattern applied to channel 1) 58-24 (timestamp 58 minutes, 24 seconds into the recording) Min (minute marker).

This suggests a piece of redacted video evidence where a mosaic blur was applied starting at 58:24. | Depth (m TVD) | Lithology (pre‑lim) |

| No. | Objective | |-----|-----------| | 1 | Document the acquisition setup and parameters for the Mosaic01‑58‑24 Min run in the Meyd‑605 well. | | 2 | Evaluate data quality and completeness. | | 3 | Identify and describe primary geological features (bedding, fractures, vugs, lithology changes). | | 4 | Provide a preliminary structural interpretation (dip, strike, fault offsets). | | 5 | Highlight any operational concerns (washouts, tool sticking, abnormal readings). | | 6 | Recommend next steps for petrophysical integration and further analysis. |

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| Parameter | Setting | |-----------|---------| | Tool model | Mosaic01‑58‑24 Min (high‑resolution optical‑camera borehole imager) | | Resolution | 0.48 cm (horizontal) × 0.30 cm (vertical) | | Rotational speed | 12 rpm (maintained throughout run) | | Axial travel speed | 0.25 m min⁻¹ (steady) | | Sampling frequency | 1 kHz (≈ 0.25 mm axial step) | | Illumination | Dual‑LED white light, 2 × 10⁴ lux | | Data format | 24‑bit grayscale PNG tiles + metadata (JSON) | | Calibration | Pre‑run flat‑field and dark‑field images captured in a 30‑m water‑filled calibration pit. | | Environmental corrections | Temperature (10 °C ± 0.5 °C) and pressure (≈ 30 MPa at 1 800 m) logged for each frame. |

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