Do Shale Pore Throats Have a Threshold Diameter for Oil Storage?
Do Shale Pore Throats Have a Threshold Diameter for Oil Storage?
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DOI：
10.1038/srep13619
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发表时间：
2015-08-28
影响因子：
4.6
通讯作者：
Jiang L
中科院分区：
文献类型：
--
作者：
Zou C;Jin X;Zhu R;Gong G;Sun L;Dai J;Meng D;Wang X;Li J;Wu S;Liu X;Wu J;Jiang L
在这项工作中，使用了一种具有可控通道直径的纳米多孔模板来模拟页岩孔喉的储油能力。基于纳米级固 - 液界面的润湿行为，对不同直径纳米通道中油的渗流情况进行了研究，以准确、系统地确定孔径对储油能力的影响。结果表明，在一定条件下，储油的下限阈值是20纳米的孔喉。所提出的这个孔径阈值为估算页岩油的地质储量、可采储量和经济可采储量提供了新的、有依据的标准。这种对页岩油过程的新认识可能会给相关行业带来变革。
In this work, a nanoporous template with a controllable channel diameter was used to simulate the oil storage ability of shale pore throats. On the basis of the wetting behaviours at the nanoscale solid-liquid interfaces, the seepage of oil in nano-channels of different diameters was examined to accurately and systematically determine the effect of the pore diameter on the oil storage capacity. The results indicated that the lower threshold for oil storage was a pore throat of 20 nm, under certain conditions. This proposed pore size threshold provides novel, evidence-based criteria for estimating the geological reserves, recoverable reserves and economically recoverable reserves of shale oil. This new understanding of shale oil processes could revolutionize the related industries.