Seat seal mechanism used for packing type tail pipe hanger
A liner hanger and packer technology, which is applied to wellbore/well components, earth-moving drilling, etc., can solve the problems of early seating of the packer hanger, etc., so as to facilitate the judgment of throwing hands and prevent early seating. , the effect of preventing scratches
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[0040] Below in conjunction with embodiment, further illustrate the present invention.
[0041] The purpose of the present invention is to provide a safe and reliable sealing mechanism including a running tool for a sealed hanger. Such as figure 1 As shown, the setting mechanism of the present invention includes a running tool, a sealing shell 23, a tie-back barrel 4, a packer, and the like.
[0042] Wherein, the sealing shell 23 and the tie-back barrel 4 are both cylindrical structures, and the tie-back barrel 4 is sleeved on the outside of the seal shell 23 . Both the upper and lower ends of the connecting barrel 4 protrude from the upper and lower ends of the sealed casing 23 .
[0043] The packer includes a packer body 31 and a seat cover 29 covering the middle of the packer body, both of which are cylindrical structures, and are fixed with packer shears 28 therebetween. A packer rubber cartridge set 30 is installed between the lower end surface 40 of the seat cover 29 ...
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