Geochemistry of Formation Water and Implications for Ultradeep Tight Sandstone of DK Gas Field in Kuqa Depression

Figure 3

The content of Cl^- varies with water/gas ratio and production time in Well DK 205 (a and b) and Well DK 208 (c) in Kuqa Depression (Data from Tarim Oilfield).

(a)

(b)

(c)