Gas-liquid separation device and gas-liquid separation method

Abstract

The invention discloses a gas-liquid separation device and a gas-liquid separation method. The gas-liquid separation device comprises a cylinder, a filter element, a driving assembly and a rotating assembly; the upper end face of the cylinder is fixedly connected with an upper end cover, the lower end face of the cylinder is fixedly connected with a lower end cover through a filter screen, an air inlet pipe is arranged on the upper portion of the cylinder, an air outlet pipe is arranged on the upper end cover, and a liquid outlet pipe is arranged on the lower end cover. The filter element is mounted in the cylinder and comprises a turntable part, a ring part and a fixation part; the lower end surface of the turntable part is rotatably connected with the filter screen, and the upper end surface of the turntable part is fixedly connected with the lower end surface of the ring part; the lower end surface of the fixation part is rotatably connected with the upper end surface of the ring part, and the fixation part is fixedly connected to the inner wall of the cylinder; an inlet of the air inlet pipe is communicated with the fixation part; and the driving assembly drives the rotating assembly to start, and the rotating assembly enables the fixation part and the circular ring part to rotate. The gas-liquid separation device can quickly separate a gas-liquid mixture, and the gas-liquid separation effect is good due to the action of centrifugal force.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a gas-liquid separation device and a gas-liquid separation method. Background technique [0002] In the process of oilfield exploitation, abnormal low pressure occurred in some oilfields, which brought certain difficulties to well workover. Some gas wells were exploited at low pressure, and sand was buried in the strata, which could not be cleaned up in time, which reduced the production of gas wells or even stopped production. When downhole operations are carried out without external energy supplementation, the workover fluid pollutes the formation more and more seriously, which makes the drainage period after the action continue to prolong. Therefore, it is necessary to pressurize this type of gas wells no matter during production or liquid drainage. In the prior art, a booster unit is usually used to pressurize the gas well, and the extracted natural gas ofte...

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Problems solved by technology

[0003] However, the separation effect of the existing gas-liquid separation equipment is not ideal in the process of use, and the separation effect and separation speed cannot be taken into account. When the gas-liquid mixture is too much, some liquid will still be mixed in the gas, and the separation effect is not good.

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