Automatic deviation adjusting wellhead sealing device

Abstract

The invention relates to an oil well sealing device, and in particular relates to an automatic deviation adjusting wellhead sealing device. The technical scheme adopted by the invention is as follows: the automatic deviation adjusting wellhead sealing device mainly comprises a connector, a locking cap, a pushing cap, a lower packing, an upper filler box, an upper packing, a gland and a pressing cap, wherein the lower part of the connector is connected with the lower part of the locking cap through a thread, the upper part of the connector is provided with the lower packing; the upper part of the locking cap and the lower end of the pushing cap are connected through a thread; the upper part of the pushing cap is fixedly provided with the upper filter box, the upper packing is fixed in the upper filler box, the top of the upper packing is fixedly provided with the gland, the pressing cap is connected with the upper filler box by virtue of a w thread, and the upper part of the upper filler box is provided with the pressing cap. The automatic deviation adjusting wellhead sealing device disclosed by the invention has the beneficial effects that the service life of the sealing device is prolonged, the production efficiency is improved, the crude oil loss is avoided, and the production yield is improved.

Description

technical field [0001] The invention relates to an oil well sealing device, in particular to an automatic deflection adjustment wellhead sealer. Background technique [0002] In oilfield production operations, conventional packing seals in oil-heavy wells, intermittent wells, polished rod corrosion, eccentric wear wells and other types of wells have problems such as poor sealing and frequent packing replacement, which leads to serious eccentric wear at the wellhead and oil leakage. The use of sealing devices The life is shortened and the production efficiency is reduced. Contents of the invention [0003] The object of the present invention is to provide an automatic deflection adjustment wellhead sealer for the above-mentioned defects in the prior art, which prolongs the service life of the sealing device and improves the production efficiency. [0004] Its technical solution is: it is mainly composed of a connector, a fixed cap, a lower pressure cap, a lower packing, an...

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Problems solved by technology

[0002] In oilfield production operations, conventional packing seals in oil-heavy wells, intermittent wells, polished rod corrosion, eccentric wear wells and other types of wells have problems such as poor sealing and frequent packing replacement, which leads to serious eccentric wear at the wellhead and oil leakage. The use of sealing devices Shorter life, reduced productivity

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