Thickened oil thermal recovery channeling sealing agent, channeling sealing agent thick liquid, preparation method of thick liquid and thickened oil thermal recovery profile control channeling sealing method

The invention discloses a thickened oil thermal recovery channeling sealing agent, a channeling sealing agent thick liquid, a preparation method of the thick liquid and a thickened oil thermal recovery profile control channeling sealing method, and belongs to the technical field of oilfield chemistry and oil exploitation engineering. The oil exploitation comprises components in percentage by weight as follows: 45%-65% of a sulphoaluminate gelling agent, 16%-40% of perlite floating beads, 0.5-0.7% of a suspending agent, 14%-18% of a stabilizer and 0.3%-0.5% of a retarder. Water is added to the channeling sealing agent to form the thick liquid, and the water-ash ratio is controlled to be 3-4.5 in the preparation process. The density of the channeling sealing agent thick liquid is low and ranges from 1.05 g/cm to 1.1 g/cm , the thick liquid can permeate to a steam channeling passageway in the deep position of the ground stratum and is cured for 4-12 hours at the temperature ranging from 30 DEG C to 100 DEG C, a cured product can resist high-temperature steam at the temperature of 300 DEG C, the blocking effect is good, the steam channeling problem of the middle lower part of an oil reservoir can be solved, and a better blocking effect is realized on channeling sealing of the overlapping layer of steam of a thick oil layer.