Strongly inhibited hydrophobic and oleophobic high-performance water-based drilling fluid system and application thereof

The invention belongs to the technical field of deep wells and ultra-deep wells, and discloses a strongly inhibited hydrophobic and oleophobic high-performance water-based drilling fluid system and anapplication thereof. A core treatment agent of the drilling fluid system contains a plugging anti-collapse agent-ethylene resin derivative for drilling fluid, a plugging agent NVP-DMAM copolymer fordrilling fluid, a lubricant-fatty alcohol derivative for drilling fluid, a shale inhibitor-multi-branched polyamine for drilling fluid and a plugging anti-collapse agent-methacrylate copolymer for drilling fluid. According to the drilling fluid system, the drilling fluid core treatment agent is strictly selected, and the drilling fluid system obtained by compatibility truly integrates 'solidification, plugging, inhibition, hydrophobic and oleophobic property and lubrication', so that stability, inhibition capacity and lubricity of the borehole wall reach the level of oil-based drilling fluid,micro-nano pore seams are p