Releasing packer is hung to intraductal filling of horizontal well

The utility model relates to a releasing packer is hung to intraductal filling of horizontal well. Its technical scheme is: by hydraulic pressure part, hang to seal and separate the part, the part of giving up, adjust the part and constitute. Hydraulic pressure part comprises top connection, hydraulic cylinder, piston, seals a lower taper sleeve that separates the part and is connected with hanging through inner center pipe, the cover of giving up, goes up the taper sleeve and places the slips down between the taper sleeve, and the shear pin is prevented sitting in piston shearing under the hydraulic pressure effect, promotion thrust is overlapped and the packing element cover, upward the taper sleeve move down, slips circumference is stretched out, blocks set inside pipe wall, realizes hanging, continue to exert pressure, the seat seals the shear pin and cuts, and the thrust cover promotes the packing element compression, realizes sealing separating. Washing pipe festival is connected and is sheathe in giving up, can rotate. The beneficial effects are that: firstly, whole process only needs next time tubular column to accomplish to fill the operation, reduced intensity of labour, shortened the activity duration, when secondly playing out oil pipe, hydraulic pressure part and washing pipe take out along with the tubular column, stay the well part few, easily salvage.