In order to separate the gas effectively in the drilling, so an efficient degasser is essential to the safe and productive drilling operations. Since gas is practically insoluble in water, it is relatively easy to detect and remove. By comparison, gas is easily soluble in oil-based mud-its detection is more difficult as well as its removal. Regardless of the composition of the gas encountered, gas existing in the mud can decrease efficiencies in rig pump, centrifugal pump and associated operational solids control equipment. The goal is to “Keep the Pumps Operating”.

The vacuum degasser is a high-efficiency in-line module that removes dissolved gases from HPLC solvents. Its unique design assures reliable continuous operation and the highest level of continuous performance available without the need for helium degassing. Up to five solvent lines may be degassed simultaneously by one unit. The extremely low internal volum of each Teflon AFchannle offers very quick equilibration and very short start-up times compared with PTFE degassing channels which have the same degassing efficiency.
 

Vacuum degasser ranks is the second stage of oil drilling mud solids control system. The drilling mud that are separated by the first stage device-shale shaker flows into the setting compartment of the mud tank. The drilled cuttings would settle into the setting pit, and the drilling fluids would flow over and into the second compartment. A sand pump would be used to pump the drilling mud from the second compartment up to the vacuum degasser. The drilling mud enters into the vacuum tank through the feeding pipe, and rotates by the rotor of the degasser, by the effect of centrifugal force, the drilling fluids would be threwn to the inner wall of the vacuum tank, and the gases that migrate into the mud would be separated from the mud. Vacuum layer would be generated by the vacuum pump that is mounted on the skid of degasser, so the gases that are separated would be pumped out to the water-gas separator by the vacuum pump and be discharged through the relief linepipe and finally be flared by the electrical ignition device at a place that are 60 to 80 meters away from the drilling rig.

Difference between Vacuum Degasser and Poor Boy Degasser Fluid Processing

Vacuum degasser is usually used to separate less gas than poor boy degasser. Although they both are degassing devices. Poor boy degasser is set up before shale shaker in the oil and gas well drilling. Before fluid flows to shale shaker it need to be processed by poor boy degasser for safety working condition. Especially when the well depth is more than 4km.