Micro-bubble axial flow and rotational flow double-field triode type T-shaped degassing device

Abstract

The invention provides a micro-bubble axial flow and rotational flow double-field triode type T-shaped degassing device, which is applied to rapid degassing of gas-liquid two-phase flow. According to the triode type T-shaped degassing device, a rapid degassing technology combining a micro-bubble uniform mixing rotating shaft flow field, a spiral flow channel conical swirling flow field and layered jet flow collision reversing deep degassing is adopted, and a micro-bubble uniform mixing device adjusts gas-liquid two-phase flow containing large bubbles into micro-bubble uniform mixing axial flow; a micro-bubble spinning machine adjusts a micro-bubble uniform mixing axial flow into a split rotating-axis flow containing microbubbles, and a rotating-axis flow degasser implements horizontal microbubble uniformly-mixed split rotating-axis flow degassing operation to remove most of the microbubbles to form an axial flow gas and an axial flow liquid, a conical rotational flow degasser implements vertical spiral flow channel single-strand conical rotational flow degassing operation and removes a small amount of remaining micro-bubbles to form rotational flow gas and rotational flow liquid, and a jet flow reversing degasser implements vertical layered jet flow collision reversing degassing operation and removes small-particle-size liquid drops to form reversing gas and reversing liquid.

Description

technical field [0001] The invention relates to a tubular rapid degassing device in the field of oil and gas field development and exploitation engineering, in particular to a double-field three-stage tubular T-type device combined with a microbubble homogeneous rotating axial flow field and a spiral flow channel conical swirling field. Degassing device and its working process. Background technique [0002] The high-efficiency separation technology of gas-liquid two-phase flow has very important practical significance for oil and gas field development and production engineering. Second, because the high-efficiency degassing technology can effectively reduce the bottom hole back pressure in the process of oil and gas field production, thereby improving oil and gas recovery. [0003] The conventional gas-liquid separation technology uses a container-type separator or a container-type condensate collector. The container-type separator mainly relies on the density difference be...

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Problems solved by technology

[0005] Movafaghian et al. carried out research work on the geometric structure, material characteristics, and pressure factors of the columnar gas-liquid separator. The columnar gas-liquid separator (GLCC) is a cyclone gas-liquid separator, and its research and application are the most mature. The working mechanism of the flow gas-liquid separator is mainly to separate the gas and liquid through the conversion of the flow pattern at the inlet and the swirling flow in the cylinder. However, when applied to mist flow and slug flow conditions with high gas-liquid ratio and high gas velocity, the liquid phase will climb up the separator wall in the form of high-speed rotating droplets or liquid film, and finally spin out Trachea, causing deterioration of separation performance

Finally, it should be pointed out that the domestic research on compact and efficient gas-liquid separation technology is still in the experimental stage.

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