Anti-erosion anticorrosion wellhead

Abstract

The invention discloses an anti-erosion anticorrosion wellhead. The anti-erosion anticorrosion wellhead comprises a well sealer, an oil pipe four-way joint, a sand filter four-way joint, a sand discharging four-way joint, a buffering connecting pipe, a wellhead four-way joint and a connecting seat, wherein the lower end of the wellhead four-way joint is connected with the connecting seat, the upper end of the wellhead four-way joint is connected with the buffering connecting pipe by virtue of a second connecting pipe, the upper end of the buffering connecting pipe is connected with the sand discharging four-way joint by virtue of a first connecting pipe, the sand discharging four-way joint is connected with the sand discharging pipeline, the sand discharging pipeline is provided with a third manual flat gate valve, the upper end of the sand discharging four-way joint is connected with the sand filtering four-way joint, one side of the sand filtering four-way joint is connected with a sand guiding pipe, the sand guiding pipe is communicated with the sand discharging pipe by virtue of a sand draining pipe, the upper end of the sand filtering four-way joint is communicated with the oil pipe four-way joint, the oil pipe four-way joint is connected with a first detection pipeline and a production pipeline, the production pipeline is provided with a second manual flat gate valve, andthe upper end of the oil pipe four-way joint is provided with the well sealer.

Description

technical field [0001] The invention relates to the technical field of wellhead devices, in particular to an erosion-resistant anticorrosion wellhead. Background technique [0002] Erosion is the combined effect of the surface of the metal material and the erosion of the corrosive fluid, causing local metal corrosion of the material. Generally speaking, the higher the velocity of the fluid, the more and harder the solid particles suspended in the fluid, and the faster the erosion and corrosion rate. At present, the flow rate of the wellhead is large, and a large amount of sediment will be mixed in the process of oil discharge. Due to the fast flow rate, the long-term erosion of the wellhead by the sediment will cause the wear of the wellhead. Once the wellhead is damaged, it will cause oil and gas leakage, which will not only cause Waste of resources and pollute the environment. Contents of the invention [0003] The object of the invention is to provide an anti-erosio...

AI Technical Summary

Problems solved by technology

At present, the flow rate of the wellhead is large, and a large amount of sediment will be mixed in the process of oil discharge. Due to the fast flow rate, the long-term erosion of the wellhead by the sediment will cause the wear of the wellhead. Once the wellhead is damaged, it will cause oil and gas leakage, which will not only cause waste of resources and pollute the environment

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