Epoxy Resin Water-Based Modification Method

Water-based epoxy resin emulsion was prepared by self-emulsification method, and the surface of the resin was modified by SiO2. On this basis, a set of modification methods for epoxy resin waterification was formed. The epoxy resin cement slurry system was constructed, and the mechanism of water-based epoxy resin improving the mechanical and cementation properties of cement stone was revealed, that is, solidified film formation can improve the pore structure of hardened cement slurry, increase the impermeability of hardened cement slurry to a certain extent, and effectively prevent the entry of external corrosive ions. The low temperature strength of resin cement slurry system develops fast - gas << penetration >>, strong channeling ability - gas << channeling >>, good toughness - sealing gas << can not go >>, good cementing quality - no pressure problems. This study lays a foundation for solving the problems of fracture propagation and corrosion faced by traditional cement cement and well integrity of deep gas wells and unconventional wells.