要了解储层岩石中的流体流动特性，需要对渗透率和饱和度相关的相对渗透率进行可靠的评估，这对于量化主要的采油机制和提高储量的成功开采也至关重要。本文介绍了一种使用压力衰减装置对富含有机质泥岩岩心样品进行可靠的渗透率和饱和度相关的相对渗透率测量的新方法。该方法适用于任何形状的样品。
作者探讨了富含有机质泥岩长时间饱和所带来的挑战，并介绍了一种饱和度和渗透率测量的一体化工作流程。该工作流程采用饱和岩心样品的装置和压力衰减装置的概念，旨在快速可靠地评估绝对渗透率和饱和度相关的相对渗透率。该饱和技术用于部分饱和致密岩石样品，以进行相对渗透率测量。
Understanding fluid-flow characteristics in reservoir rocks requires a reliable assessment of permeability and saturation-dependent relative permeability, which is also essential for quantifying primary recovery mechanisms and enhancing successful exploitation of reserves. The complete paper introduces new methods to perform reliable permeability and saturation-dependent relative permeability measurements in organic-rich mudrock core samples using a pressure-decay setup. The introduced method is applicable to samples of any shape.
The authors address the challenges associated with the long duration of saturating organic-rich mudrocks, introducing an integrated workflow of saturation and permeability measurement that adopts a setup to saturate core samples and the concept of pressure-decay setup for the purpose of fast and reliable assessment of absolute permeability and saturation-dependent relative permeability. This saturation technique was adopted to partially saturate the tight rock samples for relative permeability measurements.
