Ceramic-based anti-thread-gluing rust-proof petroleum casing thread sealing grease composition and preparation method thereof

The invention belongs to the technical field of lubricating grease, and particularly relates to a ceramic-based anti-thread-gluing rust-proof petroleum casing thread sealing grease composition and a preparation method thereof. The composition comprises the following components in percentage by weight: 10%-50% of base grease, 10%-30% of crystalline flake graphite, 1%-15% of ZrO2-MoS2-SnS2-MoDTC-ZnO zirconia ceramic-based high-temperature lubricating powder, 2%-25% of zinc powder, 1%-15% of copper powder, 5%-20% of mica powder, 5%-15% of talcum powder, 0-5% of polytetrafluoroethylene and 0-5% of an antirust agent. According to the sealing lubricating grease composition, the zirconia ceramic-based high-temperature lubricating powder is used for replacing the traditional lead powder solid filler, and the thread gluing phenomenon of a sleeve thread sealing surface can be effectively relieved and prevented by utilizing the good extreme pressure anti-wear property, high-temperature antifriction property, anti-rust p