Major breakthrough of Well Gaotan 1 and exploration prospects of lower assemblage in southern margin of Junggar Basin, NW China

DU Jinhu,ZHI Dongming,LI Jianzhong,YANG Disheng,TANG Yong,QI Xuefeng,XIAO Lixin,WEI Lingyun

Table 1 Well Gaotan 1 gas components.

Component Mass concentration % Component Mass concentration % Nitrogen 0.90 N-butane 1.19 CO2 0.47 Iso-pentane 0.29 Methane 76.46 N-pentane 0.23 Ethane 13.02 Hexane 0.13 Propane 5.96 Heptane 0.04 Iso-butane 1.31 Octane 0.01