Working Principle Of Liquid-gas Separator

The drilling fluid gas separator is a special equipment for primary degassing of gas-invaded drilling fluid. It is mainly used to remove large bubbles with a diameter of about φ3 to φ25 mm in gas-invaded drilling fluid. These large bubbles refer to the expansive gas in the drilling fluid that mostly fills a certain section of the wellbore annulus, which seriously endangers drilling safety.

Working Principle The gas-invaded drilling fluid enters the separator from the separator inlet, collides with the impact plate, and then scatters on a series of internal baffles, collides, increases the exposed surface area, flows downward, and creates a turbulent state, separating the gas from the drilling fluid. The free gas is discharged through the gas outlet on the top of the tank. The exhaust pipeline length is determined and equipped on site, and is led to a safe place, while the degassed drilling fluid flows into the circulation tank through the vibrating screen.

Structural diagram

Installation and Maintenance Install on the ground beside the 1# circulation tank (near the vibrating screen), and use wire ropes to tighten the four corners of the upper part of the separator body to the ground; install the ignition room and ignition device at the outlet of the exhaust pipeline. Check the lower buffer baffle before each use. If the wear exceeds 10mm, both baffles must be replaced at the same time before it can be put into use. After each use, the drilling fluid in the separator should be emptied (especially in winter to prevent the tank from freezing or clogging), and open the cleaning port or manhole to clean it.