A Case Study on Preservation Conditions and Influencing Factors of Shale Gas in the Lower Paleozoic Niutitang Formation, Western Hubei and Hunan, Middle Yangtze Region, China

Figure 14

Structure profile of seismic interpretation in Hefeng area, Western Hubei (the plane position is shown in Figure 3). Note: TЄ₁n—bottom of the lower Cambrian Niutitang Formation; TЄ₁q—bottom of the lower Cambrian Qinjiamiao Formation; TS₁l—bottom of the lower Silurian Longmaxi Formation; TP₁—bottom of the Permian system; TP₃d—bottom of the upper Permian Dalong Formation.