A device for anti-scouring experiment of the core surface is developed, and the water resistance of the nano particle adsorption layer on the core surface is successfully tested. The results show that the surface wettability of the nano adsorption layer is changed from hydrophilic to hydrophobic, and then to hydrophilic. The device has some features of continuous flow, testing 10 core samples at a time, convenient adjustable flow rate, taking out samples without stopping the pump and au-to-control constant water level, which have met the experimental requirements.
Ju, B.S., Dai, S.G., Luan, Z.A., et al. (2002) A Study of Wettability and Permeability Change Caused by Adsorption of Nanometer Structured Polysilicon on the Surface of Porous Media. SPE 77938, Asia Pacific Oil and Gas Conference, Australia, 8-10 October 2002, 915.