Novel gas well mouth tube type circulating rotation flow dewatering device

Abstract

The invention provides a novel gas well mouth tube type circulating rotation flow dewatering device. The device has the advantages that axial diversion blades are utilized, so that the rotational floweffect is obtained, the device can be directly arranged on a gas production pipeline, the structure of a separator is compact, the equipment size is reduced, and the installation is convenient; underthe premise of not affecting the separation efficiency, the treatment capacity of the dewatering device is improved; a separation chamber and a secondary separation diversion chamber are utilized, thereby being capable of achieving the secondary circulating separation, and improving the gas-liquid two-phase separation efficiency; an inner circulating tube is utilized, thereby not occupying separation space of the separation chamber and secondary separation diversion chamber, and improving the gas-liquid two-phase effective separation efficiency; and an inner circulating device is utilized, thereby balancing the pressure difference between a liquid phase capturing device and the separation chamber, and being helpful for the separation chamber to improve the gas-liquid separation efficiency.

Description

technical field [0001] The invention relates to the field of natural gas exploitation, in particular to a novel gas well wellhead tubular circulating cyclone dehydration device. Background technique [0002] In the field of conventional onshore natural gas exploitation, based on considerations of production metering, safe transportation and efficient management, it is necessary to separate phases of gas-liquid mixtures upstream of natural gas production. Most of the separation devices used are horizontal and vertical settling tanks based on gravity separation technology. This type of device occupies a large area, has high engineering cost, long processing time and low production efficiency. According to local conditions, the gas-liquid separation device with cyclone separation technology as the key technology is widely used. According to different fluid flow directions, the separation device can be divided into tangential counter-flow type, axial counter-flow type and axial ...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no relevant gas-liquid separation equipment at the wellhead of the natural gas field in the gas field, resulting in a large amount of liquid in the gas-gathering pipeline and serious liquid accumulation in the pipeline. The situation is not ideal, the patented technology is mainly to improve the traditional process or equipment

Professor Sun Guogang of China University of Petroleum (Beijing) "A Multi-stage Cyclone Separator System for Staged Purification of Front-stage Separator Exhaust" (CN103056048B) provides a gas-solid, gas Liquid multi-purpose cyclone separator, which is characterized by multi-stage separation, but this invention has no industrial application; in order to enhance the target and high efficiency of the application of cyclone separator, a patent "a gas-liquid separation device" (CN2832267Y) was applied for and "A Gas-Liquid Separator" (CN100358638C), both of these two patents protect the same gas-liquid cyclone separation equipment, which is characterized by special gas-liquid separation, and high pressure resistance can achieve secondary cyclone separation, separation efficiency High, but the inlet flow rate is demanding, and it is mostly used in refineries with stable working conditions; Tianjin Xinyu Environmental Protection Technology Development Co., Ltd. Du Hongbin's invention patent "a gas-liquid cyclone separator" (CN103240191 B) completely draws on the original gas-solid The structural form of the separator is inevitably not adaptable in the actual application process; Dong Jinhua of Hebei University of Science and Technology's invention patent "a gas-liquid separator" (CN204280328 U) draws on the principle of gravity separation equipment, and the equipment itself is relatively large. It is difficult to adapt to the high pressure, intensive and high-efficiency requirements of the natural gas well site; the invention patent "high-efficiency gas-liquid cyclone separator" (CN103816724 A) of Sinopec Shanghai Engineering Co., Ltd. The problem of low use efficiency, this patent was proposed, which is characterized by being divided into inner and outer cylinders, and the inner cylinder contains fillers, resulting in a large pressure drop during the application of the equipment, and the need to clean the fillers regularly, the operation is complicated, and it is not conducive to unattended operation field application

The invention patent "High Efficiency Cyclone Separator for Gas Transmission Pipeline" (CN1133504C) developed a high-efficiency cyclone separator for gas transmission pipeline, but the separator still borrows the structure of the gas-solid separator, and the separation efficiency needs to be further improved

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