The invention discloses a low-temperature low-
viscosity emergency plugging material for rapidly sealing a shaft and a preparation method thereof. The emergency plugging material is composed of the following components in parts by
mass: 45-60 parts of a liquid plugging material; 20 to 80 parts of a
diluent; 5-15 parts of a
toughening agent; 0.1 to 2 parts of an
adhesive; 0.1-1 part of a thickening
time control agent; 1-10 parts of a curing agent; 0.1 to 1 part of an accelerator; 1-10 parts of a dissolving agent; the liquid plugging material is allyl
ether modified vinyl resin. The
viscosity of a
reference sample of the liquid plugging material is 242 mPa.s, the adjustable
viscosity range at-15 DEG C to 5 DEG C is 402 mPa.s-76 mPa.s, the liquid plugging material has low viscosity at low temperature, the
compressive strength after curing can reach 50 MPa-99 MPa which is far greater than the strength of
cement, and the liquid plugging material has good
toughness. The drilling plugging agent disclosed by the invention can be applied to solving the
engineering problems of oil-gas well plugging and the like under low-temperature conditions, especially the problem of oil-gas well plugging under perennial low-temperature construction environments such as northern regions, even polar regions and the like; and meanwhile, the device is suitable for winter external environment construction operation in conventional areas.