Page 283 - Geology and Geochemistry of Oil and Gas

OF
TABLE 11.9 MODELS
STATIC
Classification of terrigenous (siliciclastic) rocks of Azerbaijan based on mineralogic composition and reservoir parameters
Type of rock Content of light minerals (%) Content of heavy minerals (%) Reservoir properties GEOLOGIC
Quartz Feldspar Rock fragments Ore Stable Kyanite Micas Glauconite Other Clay Porosity Permeability
group group group content (%) (%) (mD)
Absheron Peninsula and Archipelago SYSTEMS
Monomineralic 90–100 0–10 0–10 45–49 12–14 4.0–5.5 4.5 23–26 1–12 10–14 23–26 500–1000
Oligomictic 75–90 0–25 0–25 45–53 10–12 3.0–4.0 6.4 20–23 2–16 14–20 20–23 200–500
Polymictic 50–75 0–50 0–50 50–57 8–10 2.0–3.0 6.2 14–19 5–20 20–26 16–20 100–200
Graywacke 0–50 0–75 0–75 57–65 6–8 1.0–2.0 6.0 6–14 5–24 26–32 13–16 50–100
Lithite 0–25 0–25 75–100 65–72 4–6 0.5–1.0 5.8 2–6 9–23 32–40 10–13 10–50
Arkose 0–25 75–100 0–25 55–62 6–8 1.0–2.0 6.0 10–14 8–22 24–30 13–15 20–50
Baku Archipelago
Monomineralic 90–100 0–10 0–10 49–53 9.5–10 2.7–3.8 2.4 25–28 5–12 18–22 18–20 60–70
Oligomictic 75–90 0–25 0–25 51–68 8.7–9.5 2.2–2.7 4.4 22–25 4–14 22–28 15–18 45–60
Polymictic 50–75 0–50 0–50 54–67 7.5–8.7 1.5–2.2 4.3 15–21 0–17 28–34 13–15 30–45
Graywacke 0–50 0–75 0–75 65–75 5.0–7.5 0.5–1.5 4.1 6–15 0–21 34–43 8–13 0–30
Lithite 0–25 0–25 75–100 75–86 3.7–5.0 0.0–0.5 3.9 2–6 0–16 43–50 5–8 0
Arkose 0–25 75–100 0–25 65–70 6.0–8.0 1.0–1.5 4.0 12–15 3–13 30–38 10–12 10–30 245