Oil-water well perforating gun pulling device operating under pressure
A technology of pressurized operation and perforating gun, which is applied in wellbore/well components, production fluid, earth-moving drilling, etc., can solve problems such as affecting safe production, serious environmental pollution of wellhead operation, etc., and achieve the effect of avoiding blowout operation
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[0011] The specific embodiments of the present invention are described below in conjunction with the drawings:
[0012] by figure 1 , figure 2 It can be seen that the present invention is composed of a lifting head 1, a blowout preventer body 2, and the lower part of the blowout preventer body 2 is slips. The slips include a slip seat 3 and a slip tooth 4. The inner pipe wall of the slip seat 3 has at least There are two inverted tapered grooves 5, the slips 4 are placed in the grooves 5, and a rotating bearing 6 is installed between the upper part of the blowout prevention cylinder 2 and the lifting head 1.
[0013] The lifting head 1 has a "convex" shape structure; the upper end of the blowout prevention cylinder 2 is provided with a hollow hole that is gap-fitted with the lifting rod of the lifting head 1; the upper end of the blowout prevention cylinder 2 is overlapped with the lifting head through a rotating bearing 6 1 Lower table.
[0014] A plug 7 is fixedly installed at t...
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