泥页岩渗透率和膜效率是泥页岩井壁稳定力学化学耦合分析中极其重要的参数。对岩屑测量泥页岩渗透率和膜效率的方法进行了试验研究,研制了岩屑测量泥页岩渗透率和膜效率的仪器,给出了计算泥页岩渗透率和膜效率的新方法。利用研制的仪器和给出的计算方法进行了岩屑渗透率和膜效率的试验测量,并与岩心测量结果进行了对比分析。通过对比分析得知,利用岩屑测量泥页岩的渗透率和膜效率是可行的,所测得的泥页岩的渗透率和膜效率是可靠的,而且利用岩屑测量泥页岩渗透率和膜效率具有方便、快捷、准确的特点,适合于现场应用。
Permeability and membrane efficiency of shale are essential parameters for mechanics and chemistry analysis on wellbore wall stability.Corresponding measurement methods are,and an apparatus is developed.Calculation procedure of permeability and membrane efficiency for shale are developed.The experimental measurements for permeability and membrane efficiency using the developed apparatus are compared with cores.The comparisons results show that is method is applicable and the shale permeability and membrane efficiency calculated using this method is reliable.Using cuttings to measure shale permeability and membrane efficiency is convenient,realizable and accurate.