Water injection pipeline cyclone separation desanding device

Abstract

The invention provides a water injection pipeline cyclone separation desanding device, and belongs to the technical field of sand-carrying cyclone solid-liquid separation in water injection pipelinesof oil fields. The water injection pipeline cyclone separation desanding device solves the problem that an existing filtering device for a water injection pipeline is easy to block or break during working, and frequent downtime for cleaning or maintenance is needed, thereby wasting manpower and material resources, and solves the problem that a sealing part is worn to fail and leak due to the factsthat the pressure of a water injection well is high, the disassembly and assembly risks are large, and the disassembly and assembly are frequent. A liquid inlet pipe is communicated and fixedly connected with the outer side of the lower portion of a shell, a liquid outlet pipe is communicated and fixedly connected with the outer side of the upper portion of the shell, a spiral assembly is vertically and fixedly arranged in the shell, the liquid inlet pipe is communicated with the liquid outlet pipe through the spiral assembly, and a blow-down valve is vertically arranged at the bottom end ofthe shell and is connected with the shell through a connecting pipe.

Description

technical field [0001] The invention relates to a water injection pipeline cyclone separation and desanding device, which belongs to the technical field of cyclone solid-liquid separation for carrying sand in the oilfield water injection pipeline. Background technique [0002] In the process of oil field production, it is often necessary to filter sand particles in the water injected into the well, so as to meet the water quality requirements of the production process. The filter device used in the prior art is mainly to install a filter screen filter at the injection end of the water well. This filter has obvious defects: the filter element in this filter is easy to be blocked or damaged, and the well needs to be stopped frequently to clean the filter screen. Sand filtering is labor-intensive and labor-intensive. Due to the high pressure of the water injection well, there is a great safety risk in disassembling and assembling the filter screen, and frequent disassembly and ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing filter device for water injection pipeline is easy to be blocked or damaged during the working process, and the well needs to be shut down frequently for cleaning or maintenance, thereby wasting manpower and material resources, and the risk of disassembly and assembly is high due to the high pressure of the water injection well, and Frequent disassembly and assembly can easily cause the problem of wear, failure and leakage of the sealing part, and then a cyclone separation sand removal device for the water injection pipeline is provided.

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