High-wear-resistant blowout-control deviation adjustment polished rod sealer
A polished rod sealer, high wear-resistant technology, used in sealing/isolation, wellbore/well components, earth-moving drilling, etc. The root sealing performance is not ideal, so as to avoid the wear of the polished rod, the performance is reliable, and the sealing performance is good.
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[0025] Attached below figure 1 The highly wear-resistant anti-spray polarizing rod sealer of the present invention will be described in detail below.
[0026] as attached figure 1 As shown, the high wear-resistant anti-blowout adjustable polarizing rod sealer of the present invention has a structure comprising a base 1 connected to the wellhead, a translation base 2, and a universal sphere 3, and the bottom of the universal sphere 3 is arranged in the translation base 2 and used A locking handle 4 is locked, a spherical seal 17 is provided between the universal sphere 3 and the translation base 2, and a vent-free assembly is provided between the translation base 2 and the base 1. The vent-free assembly includes two oppositely arranged lateral translation Type piston 5, the two transverse translation pistons 5 are respectively provided with sealing bodies and cooperate to form a cross-displacement sealing body 6, and the translation position of the lateral translation piston 5...
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