| # | Action | Rationale | |---|--------|-----------| | 1 | Integrate Mosaic data with resistivity & density logs | Correlate lithology and fracture signatures to quantify porosity and fluid content. | | 2 | Perform fracture orientation analysis (Rose diagrams) | Refine fracture network models for geomechanical simulation. | | 3 | Core‑plug validation | Obtain core from intervals A2, C, and F to calibrate image‑derived porosity estimates. | | 4 | Geomechanical modeling of shear zones | Assess impact on wellbore stability and possible stimulation designs. | | 5 | Re‑log the washout zone with a caliper or acoustic tool | Verify true borehole dimensions and decide on remedial casing if necessary. | | 6 | Update reservoir simulation grid with identified thin beds (E) and vugular zones to improve flow prediction. |
| 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. | Meyd-605 Mosaic01-58-24 Min
Given the components, here are the three most plausible real-world mappings: | # | Action | Rationale | |---|--------|-----------|