松辽盆地南部白垩系青山口组页岩气储层评价及生储有利区预测

Shale gas reservoir evaluation and prediction of the shale gas reservoir's favorable zone in the cretaceous Qingshankou formation of the southern Songliao basin

以松辽盆地南部为研究区,以白垩系青山口组为研究目的层,采用烃源岩质量、储层特征和资源潜力分析的"三位一体"页岩气储层综合评价方法,分析青山口组页岩气形成条件,评价青山口组的有机质丰度、储层特征和产能,得出白垩系青山口组烃源岩质量好,储层优良,生气条件良好,具页岩气生储潜能.根据青山口组页岩气生储条件评价,预测松辽盆地南部青山口组页岩气生储有利区,认为青山口组一段页岩气生储最有利区位于长岭凹陷中偏南部,位于长岭凹陷中部、长岭凹陷中部以北部分地区和德惠凹陷中部的青山口组二+三段为页岩气成藏发育最有利区带.

The target area is located in the southern Songliao basin,and the target layer is Qingshankou formation.Through the detailed analysis,the abundance of organic matter,reservoir characteristics and productivity,the evaluation of the shale gas reservoir and the prediction of the favorable zone of the shale gas exploration and development are made in order to provide reliable reference materials for the further deployment of the shale gas exploration and development.The conclusion is drawn that the reservoir favorable zone of K1q1 is located in the centre of Changling depression to south and the reservoir favorable zones of K1q2+3 belong to the centre of Changling depression,the centre of Changling depression to north and the centre of Dehui depression,.