Vacuum Degasser Used In Drilling

A degasser is a device used in drilling to remove gasses from drilling fluid which could otherwise form bubbles.For small amount of entrained gas in a drilling fluid, the degasser can play a major role of removing small bubbles that a liquid film has enveloped and entrapped. In order for it to be released and break out the air and gas such as methane, H2S and CO2 from the mud to the surface, the drilling fluid must pass degassing technique and it can be accomplished by the equipment called degasser which is also a major part of a mud circulation system.

Vacuum degasser is one of the most important part of solids control system in oil and gas drilling works.Vacuum degasser ranks as the second stage of solids control system. Vacuum degasser separates the gases that migrates into the drilling fluids by the function of vacuum pump and vacuum tubular tank. If the gases does not been separated from the drilling fluids, it may cause well kicked, and increase the total financial cost and timing cost of the drilling project. If there is no gas migrating into the drilling fluids, the vacuum degasser would work as a big mud agitator, to enhance the shearing rate of the drilling mud.

KOSUN ZCQ series vacuum degasser is vacuum type. It applies the vacuum pump suction to form a negative pressure region in vacuum cylinder. The drilling fluid is forced to flow into the hollow shaft of the rotator through suction pipe under the atmosphere pressure. After that, the fluid sprays to cylinder walls out of hollow shaft windows.At this time,the drilling fluid is separated to a thin layer under the collapse together with separating impeller and gas bubbles in the mud may break and are displaced to a safe place under the vacuum pump with gas-liquid separator through air displace pipelines of the separator while the mud is drained out by impeller. In addition, drilling mud enters the pump cylinder only through suction pipe and can’t be sucked in through discharge pipe because the main motor is started at the first place and the impeller connected to the motor will revolve at a high speed.