Natural gas wellhead shutdown-free desanding separation device

Abstract

The invention discloses a natural gas wellhead shutdown-free desanding separation device, and belongs to the technical field of natural gas extraction. Comprising a support, and a bottom plate is fixed to the upper end of the support; a cylinder body is fixed on the bottom plate; an upper cover is fixed at the upper end of the barrel, one side of the barrel is connected with an air inlet pipe, and a sand remover opposite to the air inlet pipe is mounted in the barrel; the upper cover is connected with an air outlet pipe; a pull rod penetrates through the center of the bottom plate; lifting devices are connected to the lower ends of the pull rods; the upper ends of the pull rods are connected with conical seats; the conical seat is connected with a sand gathering cylinder; the lower side of the conical seat is a sand gathering cavity; a pressurizing pipe and a pressure reducing valve which are communicated with the sand gathering cavity are mounted on the side wall of the barrel; a sand unloading hole is formed in the bottom plate, and a sand outlet pipe is connected below the sand unloading hole; a pressure plate is fixed on the pull rod; and a sealing column which is relatively matched with the sand unloading hole is fixed below the pressure plate. In the whole sand unloading process, the air inlet pipe does not stop air inlet, the whole machine continuously works, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of natural gas exploitation, in particular to a natural gas wellhead non-stop sand removal and separation device. Background technique [0002] At present, in natural gas production, due to technological requirements, gas wells must be fractured before being put into production, which results in some sand in the natural gas released from the wellhead of the natural gas well, so the wellhead is generally connected with a sand removal and separation device. Although the existing pipeline desanding device can remove sand, but because the gravel exists inside the desanding device, the amount of sand in the device and when to remove sand can only be relied on the experience of the operator, which is very inconvenient to use. Moreover, when cleaning the internal sand accumulation, it needs to be shut down, which reduces the production efficiency, and it is easy to cause equipment failure when starting and shutting...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the above-mentioned technology are: the use of two sets of systems will greatly increase the occupied space of the device, and also increase the production cost; the quality of sand removal is not high only by using the cyclone inner cylinder, and the sand content in the extracted natural gas is easy to exceed the standard. Requires reduced natural gas flow rate, resulting in reduced efficiency

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