Study on Hydrocarbon Accumulation Periods Based on Fluid Inclusions and Diagenetic Sequence of the Subsalt Carbonate Reservoirs in the Amu Darya Right Bank Block

Figure 5

Microscopic features of fluid inclusions in the J₂k-J₃o reservoirs in the ADRRB. (a) Well AMO-2, FIA in calcite veins; (b) Well AEA-1, gas inclusions coexisting with two-phase aqueous inclusions in calcite veins; (c, d) Well AMO-2, FIA in (Early) Mesogenetic burial calcite cements; (e) Well AMO-2, FIA in (Late) Mesogenetic burial calcite cements. The extension direction of FIA cuts the cleavage fissures of the calcite; (f) Well AEA-2, FIA in cluster distribution. The aqueous inclusions have a constant gas-liquid ratio and ; (g, h) Well AMO-2, yellow fluorescent hydrocarbon inclusions in the healing fracture of (Early) Mesogenetic burial calcite cements; (i, j) Well AMO-2, green fluorescent hydrocarbon inclusions in the healing fracture of (Late) Mesogenetic burial calcite cements. The extension direction of FIA cuts the cleavage fissures of the calcite; (k, l) Well AMO-2, blue fluorescent hydrocarbon inclusions in the calcite veins.

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