EPSRC grant EP/L012227/1 - Estaillades Carbonate

EPSRC grant EP/L012227/1: Development of Unified Experimental and Theoretical Approach to Predict Reactive Transport in Subsurface Porous Media. The effect of pore-scale heterogeneity on non-Darcy flow behaviour is investigated by means of direct flow simulations on 3-D images of Estaillades carbonate. The critical Reynolds number indicating the cessation of the creeping Darcy flow regime in Estaillades carbonate is two orders of magnitude smaller than in Bentheimer sandstone, and is three orders of magnitude smaller than in the beadpack. It is inferred from the examination of flow field features that the emergence of steady eddies in pore space of Estaillades at elevated fluid velocities accounts for the early transition away from the Darcy flow regime. Also available at https://www.digitalrocksportal.org/projects/10, DOI:10.17612/P73W2C. Further details can be found in Muljadi et al., Advances in Water Resources (2015), URL:http://dx.doi.org/10.1016/j.advwatres.2015.05.019.

EPSRC资助项目EP/L012227/1：开发统一实验与理论方法以预测地下多孔介质中的反应性输运。本研究通过直接在Estaillades碳酸盐的3D图像上进行的流动模拟，探究了孔隙尺度异质性对非达西流动行为的影响。在Estaillades碳酸盐中，表征蠕动达西流动状态终止的临界雷诺数比Bentheimer砂岩小两个数量级，比 beadpack 小三个数量级。通过对流动场特征的考察，推断出在较高的流体速度下，Estaillades孔隙空间中稳态涡流的产生是早期从达西流动状态过渡的主要原因。相关信息亦可在https://www.digitalrocksportal.org/projects/10获取，DOI：10.17612/P73W2C。更详细的内容可参考Muljadi等人在《水资源进展》（2015年）发表的文章，URL：http://dx.doi.org/10.1016/j.advwatres.2015.05.019。