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为查明阜康向斜八道湾组煤层气成藏机制,以水文地质学观点探讨了控气地质作用。结果表明,浅部储层位于地下水径流区,含气量较低;地下水自西北、东部、东南部侧向补给,在向斜仰起端与深部储层形成滞留区,有效封堵、封闭了热成因气藏,含气量较高。水文地质条件控制了阜康向斜次生生物气生成与热成因气保存。
In order to find out the mechanism of CBM formation in the syncline Badaowan Formation in Fukang, the geologic role of gas control was discussed from the perspective of hydrogeology. The results show that the shallow reservoirs are located in the groundwater runoff area and have low gas content. Groundwater is replenished laterally from the northwest, east and southeast, and forms a dwell zone between the dikes and the deep reservoirs, effectively blocking and closing the heat Genesis gas reservoir, high gas content. Hydrogeological conditions control the formation of the Fuke anticline biogas and the preservation of pyrogen gas.