Imbibition is one of the important methods of oil recovery in shale oil reservoirs. At present, more in-depth studies have been carried out on the fracture system and matrix system, and there are few studies on the effect of energy enhancement on imbibition in shale oil reservoirs. Therefore, based on the study of pressurized imbibition and spontaneous imbibition of shale oil reservoirs in Qianjiang Sag, Jianghan Basin, nuclear magnetic resonance technology was used to quantitatively characterize the production degree of shale and pore recovery contribution under different imbibition modes, and analyze the imbibition mechanism of shale oil reservoirs under the condition of energy enhancement. The experimental results showed that with the increase in shale permeability, the recovery ratio of pressurized imbibition also increased. The rate of pressurized imbibition was higher than spontaneous imbibition, and pressurized imbibition can increase the recovery ratio of fractured shale. Spontaneous imbibition can improve the ultimate recovery ratio of matrix shale. Pressurized imbibition can increase the recovery contribution of macroporous and mesoporous.

吸附是页岩油藏采油的重要方法之一。目前，对裂缝系统和基质系统进行了更深入的研究，而关于能量增强对页岩油储层吸收作用的研究很少。因此，在对江汉盆地潜江凹陷页岩油藏加压吸收和自发吸收的研究的基础上，利用核磁共振技术定量表征了不同吸收方式下页岩的生产程度和孔隙恢复贡献，并进行了分析。强化条件下页岩油藏的机理研究 实验结果表明，随着页岩渗透率的提高，加压吸水的采收率也随之提高。加压吸水率高于自然吸水率，加压吸水能提高页岩裂缝的采收率。自发吸收可以提高基质页岩的最终采收率。加压吸水可以增加大孔和中孔的回收率。