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江苏现有气显示井 1 48口 ,其中工业气井 2 6口 ,产气层 1 0个 ,气藏 1 8个。按气源可将气藏划分为三类 :属生物气—低温热解气藏类型的有刘庄下第三系阜宁组二段、黄珏三垛组一段等两个气藏 ;属油型伴生气—凝析气藏类型的有周庄下第三系下盐城组二段、许庄三垛组一段、富民庄戴南组一段等九个气藏 ;属于多源混合型气藏类型的有富民庄下第三系三垛组一段、小纪泰州组一段、黄桥下盐城组二段等七个气藏。根据江苏 1 8个气藏的现有资料 ,从气源、储层、封盖圈闭等方面进行分析比较 ,建立起不同成因类型的三种成藏模式 :①“刘庄式”自生自储型生物气成藏模式 ;②“永安式”下生上储型热解气成藏模式 ;③“黄桥式”有机气和幔源气混合成藏模式。
There are currently 148 wells in Jiangsu, of which 26 are industrial gas wells, 10 are gas-bearing formations and 18 are gas reservoirs. According to the gas source, the gas reservoirs can be divided into three types: gas reservoirs with low-temperature pyrolysis gas types include the second member of Funing Formation, the second member of Funing Formation and the second member of Huangjue Sandun Formation, There are nine gas reservoirs, such as the second member of Yancheng Formation of Zhouzhuangxia Tertiary, the first member of Xuzhuang Sanduo Formation and the first member of Dainan Formation of Fumin Zhuang. The types of associated gas-condensate gas reservoirs are of multi-source mixed gas reservoirs There Fumin Zhuang the Third Department of three stacks of a group, a small section of the Taizhou group, the second section of the Yellow River Yancheng seven gas reservoir. According to the existing data of 18 gas reservoirs in Jiangsu Province, three types of gas accumulation models with different genetic types were established from the aspects of gas sources, reservoirs and seal traps: ① Liuzhuang-style self-storage Type biogas accumulation model; ② “Yong’an type” under the Shangdu-type pyrolysis gas accumulation mode; “Huangqiao-style” organic gas and mantle source gas mixed reservoir mode.