Double-sealed hot water flooding tubular column of directional well in oil field

The utility model discloses a double-sealed hot water flooding tubular column of a directional well in an oil field and is designed for meeting the requirement for high-temperature hot water, enhancing sealing reliability of the tubular column and reducing corrosion damages to equipment. The double-sealed hot water flooding tubular column is mainly composed of an anticorrosive paint coating oil pipe, a connecting centralizer, a high-temperature water injection packer, a high-temperature differential pressure packer, a water injection slide sleeve, a screen pipe and a pipe plug which are all connected with each other in sequence. The tubular column adopts a double-sealed method of the high-temperature water injection packer and the high-temperature differential pressure packer and ensures that the other packer continues to work after one pack does not work. A rubber barrel is closely attached to the inner wall of a casing for supporting the oil pipe, and therefore the tubular column solves the problems of damages of a metal hydraulic anchor to the casing in the past and tripping caused by corrosion and encrustation of the metal anchor, and provides technical reliability for the tubular column. Through adoption of annular heat insulation process of an oil sleeve, the tubular column can effectively reduce thermal loss of a mine shaft. The double-sealed hot water flooding tubular column of the directional well in the oil field can meet the requirement for high-temperature hot water injection, effectively enhance the sealing reliability of the tubular column, and increase anchoring force of the tubular column.