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Poor boy degasser for drilling mud system


Oilfield drilling Poor boy degasser that removes air or gases (methane, H2S, CO2 and others) from drilling liquids. There are two generic types that work by both expanding the size of the gas bubbles entrained in the mud (by pulling a vacuum on the mud) and by increasing the surface area available to the mud so that bubbles escape (through the use of various cascading baffle plates). If the gas content in the mud is high, a mud gas separator or “poor boy degasser” is used, because it has a higher capacity than standard degassers and routes the evolved gases away from the rig to a flaring area complete with an ignition source.

Poor boy degasser is located between choke manifold and shale shaker, it has a pipeline for discharging gas directly. According to practical experience, the thruput of poor boy degasser must be reached five times design circulation. The inner diameter of drilling fluid exit pipeline should be not less than the inner diameter of inlet pipeline, drilling fluid will be directly discharged in inlet manifold of shale shaker or mud tanks.


Based upon your predicted operating conditions and your required gas handling capacity, DC Machinery will be able to calculate the optimal size of your mud gas separator. All of our poor boy degassers are supplied with a complete calculation package; this will include mechanical strength calculations, theoretical separation capacities and safe working pressures etc.