Diagenetic Facies and Their Controls on the Quality of Tight Sandstone Reservoirs: A Case Study from the Upper Paleozoic Gas Reservoir in the Eastern Ordos Basin, North China

<div>Dissolution pores of sandstone in the Shanxi Formation. (a) Casting pores of clastic particles. (b) Dissolution residue of plagioclase. (c) Dissolution of metamorphic rock debris (the residual siliceous minerals can be identified). (d) Residue after the dissolution of calcareous cement.</div>

Geofluids

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Figure 10

Figure 10: Diagenetic Facies and Their Controls on the Quality of Tight Sandstone Reservoirs: A Case Study from the Upper Paleozoic Gas Reservoir in the Eastern Ordos Basin, North China 

Figure 10 | Diagenetic Facies and Their Controls on the Quality of Tight Sandstone Reservoirs: A Case Study from the Upper Paleozoic Gas Reservoir in the Eastern Ordos Basin, North China 