摘要
在对长7页岩分布规律、形成地质条件、有机质特征研究的基础上，利用页岩气勘探最新实际资料．分析了长7页岩储层物性和含气性，依据页岩气资源潜力评价标准，分别按页岩厚度、页岩埋藏深度计算了长7页岩气资源量．预测了有利目标区得出长7页岩气总资源量介于（2．54～4．47）×10^12m^3之间，吴起一甘泉一富县～华池地区为页岩气勘探开发最有利区的结论。
On the basis of the study of Chang7 shale distribntion, geological conditions of the formation, characteristics of the organic matter, using the latest actual data of shale gas exploration, physical properties and gas-bearingness of the Chang7 shale reservoirs are analyzed in the paper. In accordance with the evaluation criteria of shale gas resources potentials, Chang7shale gas resources are calculated respectively according to the thickness and buried depth of the shale. Favorable target areas are predicted. Conclusion： The total resources of Chang7 shale gas are 2.54 ~ 4.47 trillion （1012） m^3. The most favorable district for shale gas exploration and development in the region is the Wuqi - Ganquan - Fuxian - Huachi area.
