The Accumulation Characteristics of the Paleozoic Reservoir in the Central-Southern Ordos Basin Recorded by Organic Inclusions

Figure 2

Microscopic photographs of Early and Late Paleozoic Permian sandstone inclusions. (a) Liquid hydrocarbon inclusions in early fractures and enlarged edges of quartz grains, F3 well, 2958.61 m, P₂, (-); (b) the same field of view as (a), fluorescence; (c) gaseous hydrocarbon inclusions in late fractures of quartz grains, F2 well, 2753.87 m, P₂, (-); (d) quartz particle dissolution pore fractures contain liquid hydrocarbon inclusions, F1 well, 2708.4 m, P₂, (-); (e) the same field of view as (d), fluorescence; (f) gaseous hydrocarbon inclusions in late fractures of quartz particles, F2 well, 2753.87 m, P₂, (-).

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