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宗巴音凹陷是蒙古国东戈壁盆地的主要生油凹陷,由于国际原油价格的持续走高,近期在宗巴音凹陷内的勘探开发异常活跃。随着钻井工作量的增加及地质研究的深入,宗巴音凹陷油气资源的基础状况越来越受到关注。综合运用各种地质资料,首次采用盆地模拟的方法对宗巴音凹陷的油气资源量进行了评价。宗巴音凹陷下宗巴音组下段“特殊岩性段”为很好的烃源岩,下宗巴音组中、上段烃源岩为中等烃源岩,查干组及上宗巴音组烃源岩为中等—差烃源岩。宗巴音凹陷石油资源总量为8814×104～11017.5×104t,天然气资源量为17.3×108～27.6×108m3;上宗巴音组沉积期是主要生烃高峰期,中央带南段与西北斜坡带是主要的油气源区。
The Zongbaon sag is the main source depression in the East Gobi Basin in Mongolia. Due to the continuous rise of international crude oil prices, the recent exploration and development in the Zongbaon sag has been extremely active. With the increase of drilling workload and the deepening of geological research, the basic conditions of oil and gas resources in the Zongba sound sag have drawn more and more attention. Comprehensive utilization of various geological data, the first basin-based simulation method was used to evaluate the amount of oil and gas resources in the Zongba depression. In the lower Zongba sounding group in the Zongba depression, the “special lithology” is a good source rock. In the lower Zongba sound group, the upper source rock is medium source rock, and the Chagan and Shangzhang The phonolite source rocks are medium-poor source rocks. The total oil resources in Zongbaon sag is 8814 × 104 ~ 11017.5 × 104t, and the natural gas resources are 17.3 × 108 ~ 27.6 × 108m3. The sedimentary period of the Upper Zongyin Formation is the main peak of hydrocarbon generation. The southern section of the central belt and the northwest slope Belt is the main source of oil and gas.