The role of microscopic displacement dynamics for underground hydrogen versus natural gas storage in fractured reservoirs

This dataset contains X-ray CT images from Experiment 3 of the study titled "Drainage, Imbibition, and Trapping Behavior of Hydrogen versus Methane in Fractured Limestone from a Natural Gas Storage Aquifer in Belgium." Experiment 3 was conducted on a fractured reservoir rock sample with a diameter of 25 mm, a fracture width of 450 µm, and a length of 45 mm. Due to the limited field of view of the scanner, the sample was scanned in two parts—top and bottom—for the water phase. Fluids (gas or brine) were injected from the top of the vertically mounted sample, and multiphase flow scans were performed exclusively on the top part (near the injection point). The dataset includes experiments for drainage and imbibition using hydrogen, methane, and a 50:50 hydrogen-methane mixture (based on partial pressure).本数据集包含题为《比利时天然气储层含水层裂隙石灰岩中氢气与甲烷的驱替、自吸及捕集行为》的研究中实验3的X射线计算机断层扫描（X-ray CT）图像。实验3采用直径25 mm、裂隙宽度450 µm、长度45 mm的裂隙储层岩石样本开展。受扫描仪视场范围限制，针对水相工况的扫描分为上下两部分完成。流体（气体或地层盐水）从垂直安装的样本顶部注入，且多相流扫描仅在靠近注入点的顶部区域进行。本数据集涵盖了使用氢气、甲烷以及基于分压配比的50:50氢甲烷混合气体开展驱替与自吸实验的相关数据。