Gas-liquid separator and gas-liquid separation method

Abstract

The invention discloses a gas-liquid separator and a gas-liquid separation method. The gas-liquid separator is provided with a columnar cyclone separator; the columnar cyclone separator comprises a vertical tube body (9); a partition plate (402) is arranged in the vertical tube body; an air lifting pipe (401) is arranged in the middle of the partition board; a circle of downcomer tubes (403) are arranged downwards, and are close to the edge of the partition board; the gas-liquid separator is also provided with a tubular preseparator; the tubular preseparator is provided with a gas phase tube (105) and a liquid phase tube (106); the gas phase tube and the liquid phase tube are both connected with the vertical tube body along the tangential direction of the vertical tube body; the outlet ofthe gas phase tube is located above the top outlet of the gas-raising tube; the outlet of the liquid phase tube is located below the bottom outlets of the downcomer tubes; and a liquid drop sedimentation region (2) and a bubble floating region (5) are arranged in the vertical tube body. The invention discloses the gas-liquid separation method by adopting the gas-liquid separator. The gas-liquid separator provided by the invention is mainly used for gas-liquid separation in the technical field of oil-gas treatment in oil and gas fields.

Description

technical field [0001] The invention relates to a gas-liquid separator and a gas-liquid separation method for gas-liquid separation in the technical field of oil and gas treatment in oil and gas fields. Background technique [0002] The gas-liquid columnar cyclone separator is a simple and compact gas-liquid separation equipment, which has been widely used in the oil and gas treatment process as oil and gas well metering separator, pre-separator, scrubber, etc. During operation, the gas-liquid mixture enters the standpipe cylinder through the gas-liquid inlet pipe inclined downward along the tangential direction of the riser cylinder and rotates around the riser cylinder, and the gas-liquid is separated by gravity and centrifugal force. The gas-liquid makes a violent swirling movement, and the velocity and pressure of each point inside the gas-liquid columnar cyclone separator show strong fluctuation characteristics. The severe swirling field and the narrow separation space...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a gas-liquid separator and a gas-liquid separation method to solve the problem of the gas-liquid incoming flow parameter change and the gas-phase space swirl field and the liquid-phase space swirl in the existing gas-liquid columnar cyclone separator. The problem that field interaction and interference can easily cause adverse effects on the separation effect

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