Well washing valve special for thickened oil

The invention relates to the technical field of well washing valves, and discloses a well washing valve special for thickened oil, which comprises a well washing valve body arranged in an oil well casing, a steam injection pipe column is arranged in the oil well casing, the well washing valve body is fixedly arranged on the outer side of the steam injection pipe column, and a steam injection ball basket is arranged at the lower end of the steam injection pipe column. A Y341 high-temperature packer, a heat insulation short section and a Y441 high-temperature packer are sequentially arranged on the outer side of the steam injection pipe column from bottom to top, the well washing valve body is located above the Y441 high-temperature packer, a heat insulation pipe and a thermal compensator are sequentially arranged on the outer side of the steam injection pipe column from top to bottom, and the well washing valve body is located below the thermal compensator. Porous distribution is adopted, so that liquid flow e