Shutdown-free online grit catcher for oil-gas pipeline

Abstract

The invention discloses a shutdown-free online grit catcher for an oil-gas pipeline. The shutdown-free online grit catcher for the oil-gas pipeline comprises a grit catcher inlet, a grit catcher outlet, a grit catcher barrel, a double-screw pipe, a double-screw pipe inlet, a double-screw pipe outlet, vortex stopping fan plates, grit discharging openings, full bore ball valves and grit inlets. Thegrit catcher barrel is of a cylinder structure with the two ends provided with flange connectors. One end of the grit catcher barrel is provided with the grit catcher inlet, and the other end of the grit catcher barrel is provided with a grit catcher outlet. The double-screw pipe is installed in the grit catcher barrel and located on the side provided with the grit catcher inlet. The double-screwpipe inlet and the double-screw pipe outlet are located on the head and the tail of the double-screw pipe correspondingly. The vortex stopping fan plates are arranged in the grit catcher barrel and located on the side provided with the grit catcher outlet. The grit discharging openings are located at the bottom of the grit catcher barrel and arranged between the double-screw pipe and the vortex stopping fan plates. The grit discharging openings communicate with a grit storage chamber sequentially via the full bore ball valves and the grit inlets. The shutdown-free online grit catcher for the oil-gas pipeline can permanently solve the trouble of blockage in the grit catcher; and besides, the shutdown-free online grit catcher for the oil-gas pipeline does not occupy extra space during installation and does not need an auxiliary facility.

Description

technical field [0001] The invention belongs to the technical field of centrifugal separation and flow guarantee, and relates to an on-line desander for oil and gas pipelines without transmission. Background technique [0002] In the process of oil and gas extraction, it is inevitable that there will be solid impurities such as mud and sand, especially with the application of new technologies such as hydraulic fracturing and polymer flooding, this phenomenon has become increasingly serious. [0003] The existence of solid impurities will adversely affect the normal operation of downstream oil and gas treatment facilities such as three-phase separators, and cause strong wear and tear on the inner anti-corrosion layer on the inner wall of the pipeline. The normal operation of pumps and compressors in power facilities is highly sensitive to solid impurities. Advanced solid-liquid and gas-solid separation facilities are of great significance. At present, the main methods for se...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an online desander for non-stop transmission of oil and gas pipelines in view of the shortcomings of the prior art, such as complicated installation and poor separation effect. Using the technology of the present invention can permanently relieve the trouble of internal blockage of the desander, and the installation does not occupy additional space, no auxiliary facilities required

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