Reservoir Sensitivity Analysis of Tight Sandstone and Its Controlling Factors: A Case Study from Chang 4+5 to Chang 6 Reservoirs in N 212 Well Block of Nanniwan Oilfield, Ordos Basin

<div>Ternary diagram illustrating the framework compositions of the Chang 4+5 and Chang 6 reservoirs in the N 212 well block in Nanniwan Oilfield. Q = quartz; F = feldspar; R = rock fragments; I = quartz arenite; II = subarkose; III = sublitharenite; IV = arkose; V = lithic arkose; VI = feldspathic litharenite; VII = litharenite.</div>

Geofluids

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Figure 2

Figure 2: Reservoir Sensitivity Analysis of Tight Sandstone and Its Controlling Factors: A Case Study from Chang 4+5 to Chang 6 Reservoirs in N 212 Well Block of Nanniwan Oilfield, Ordos Basin 

Figure 2 | Reservoir Sensitivity Analysis of Tight Sandstone and Its Controlling Factors: A Case Study from Chang 4+5 to Chang 6 Reservoirs in N 212 Well Block of Nanniwan Oilfield, Ordos Basin 