High-pressure flow rotating and filtering type natural gas sand remover

Abstract

The invention belongs to natural gas discharge and exploiting equipment and particularly relates to a high-pressure flow rotating and filtering type natural gas sand remover used for solving the problem that natural gas exploited in a gas field fractured well or a stratum sand outlet well contains a large number of sand particles. The device comprises six parts of a sand removing device, a pipeline system, a mounting frame, a worm wheel and worm lifting device, a back flushing device and a high-pressure liquid volume measurement device and is composed of a pressure releasing valve, a filtering cylinder, an abrasion preventing sleeve, cylinder bodies, slab gate valves, the back flushing device, the worm wheel and worm lifting device and the like; the sand removing device is connected with a gas inlet pipeline, a gas outlet pipeline, a sand discharging pipeline and the back flushing device, wherein the gas inlet pipeline, the gas outlet pipeline and the sand discharging pipeline are located in the pipeline system; and gas enters the sand removing device, is subjected to flow rotating and filtering and then is output from the gas outlet pipeline, and the sand particles are discharged from the sand discharging pipeline at the bottom. According to the high-pressure flow rotating and filtering type natural gas sand remover, ground procedure equipment can be effectively protected from being flushed by a high-speed sand-containing scrap-containing fluid, damage to the downstream ground equipment is effectively reduced, stratum outlet sand is prevented from blocking the pipeline or the equipment, and considerable economic benefits can be created.

Description

technical field [0001] The invention belongs to natural gas extraction equipment, in particular to a high-pressure swirl filter type natural gas desander, which is used to solve the problem that the natural gas produced by fracturing wells in gas fields or formation sand wells contains a large amount of sand grains. Background technique [0002] my country has abundant reserves of natural gas resources. In the process of natural gas exploitation, the sand production of gas wells is a very important factor affecting the safe exploitation. The sand production of gas wells seriously damages all links of the natural gas production system. Cause serious erosion and wear damage to ground systems such as pipeline elbows, valves, gas nozzles, separators, etc., especially at throttling and turning places. It can cause the valve seat to be worn and not sealed, the valve core to be pitted, the ground gate to fail, the pump to be severely eroded, the pipeline and the storage tank to be ...

AI Technical Summary

Problems solved by technology

It can cause the valve seat to be worn and not sealed, the valve core to be pitted, the ground gate to fail, the pump to be severely eroded, the pipeline and the storage tank to be blocked or leaked, so that the gas well has to be shut down for equipment maintenance or replacement, resulting in a decrease in production and an increase in cost. cause serious safety accidents

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