• 文献标题:   Study of Janus Amphiphilic Graphene Oxide as a High-Performance Shale Inhibitor and Its Inhibition Mechanism
  • 文献类型:   Article
  • 作  者:   LV KH, HUANG P, ZHOU ZS, WEI X, LUO Q, HUANG ZM, YAN H, JIA H
  • 作者关键词:   graphene oxide, janus amphiphilic nanosheet, shale inhibitor, plugging agent, inhibition mechanism
  • 出版物名称:   FRONTIERS IN CHEMISTRY
  • ISSN:   2296-2646
  • 通讯作者地址:   China Univ Petr East China
  • 被引频次:   0
  • DOI:   10.3389/fchem.2020.00201
  • 出版年:   2020

▎ 摘  要

Janus amphiphilic graphene oxide (JAGO), modified by dodecylamine on one side of graphene oxide (GO), was investigated for its novel use as a shale inhibitor. JAGO was synthesized by the Pickering emulsion template technology and was characterized by the Fourier-transform infrared spectra, UV-vis spectra, and transmission electron microscopy. Compared to KCl (5%), polyether diamine (2%), and pristine GO (0.2%), JAGO's highest shale recovery rate (75.2% at 80 degrees C) and lowest swelling height of Mt-pellets (2.55 mm, 0.2%) demonstrated its excellent inhibitive property. Furthermore, JAGO acted as a perfect plugging agent and greatly reduced filtration loss. Based on the results of X-ray diffraction, contact angle measurements, and pressure transmission tests, we proposed that the 2D nano-sheet amphiphilic structure of JAGO, which enabled it to be effective both in chemical inhibition and physical plugging, was responsible for its remarkable inhibition performances.