TY -的A2吴Yonghui AU - Li Yudan盟——顾Shaohua AU -戴,程PY - 2021 DA - 2021/08/16 TI - Nanoconfined水页岩及其对真实气体流动的影响SP - 8092331六世- 2021 AB -水的存在,即,原生或水力压裂水和页岩纳米孔的气态碳氢化合物是由先前的研究很大程度上被忽略了。在这个工作中,一个新的统一的真实气体迁移模型已经开发了有机和无机多孔介质占nanoconfined水膜流。更具体地说,一个气体核心流中心的有机/无机孔隙水膜包围,可以进一步划分为一个界面地区(靠近壁面水)和大部分地区(大体积的水)。我们区分不同水粘度之间的两个区域,并考虑不同滑移边界;即壁面水可以沿着疏水性有机孔隙表面虽然微不足道的亲水性无机毛孔。将修改边界条件纳入navier - stokes方程、气体运输模型通过单一有机/无机孔。模型也全面扩大规模考虑多孔介质孔隙度、弯曲度和总有机碳(TOC)的内容。结果表明,气体流量减少在潮湿条件下移动和非移动水膜。然而,移动水膜补偿其负面影响多达50%提高气体流量与静态的水分子。真实气体流动是由气体滑脱和水膜流动取决于在于参数如孔隙大小、拓扑结构、压力和表面润湿性能。 Compared with inorganic pores, gas transport in organic pores is greatly enhanced by the water film flow due to the strong water slip. Moreover, the contribution of water film mobility is remarkable in small pores with large contact angles, especially at high pressures. At moist conditions, the real gas effect enhances gas flow by improving both gas slippage and water film mobility, which is more prominent in smaller pores at high pressures. The presented model and its results will further advance our understanding of the mechanisms responsible for the water and gas transport in nanoporous media, and consequently, the hydrocarbon exploration of shale reservoirs. SN - 1468-8115 UR - https://doi.org/10.1155/2021/8092331 DO - 10.1155/2021/8092331 JF - Geofluids PB - Hindawi KW - ER -