Working principle of KOSUN drilling fluid degasser

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 oilbase muds – 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 pumps, centrifugal pumps and associated operational solids control equipment. The goal is to “Keep the pumps Operating”.
Drilling fluid vacuum degasser ranks as 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 threw 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 are 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.

Working principle of KOSUN vacuum degasser
The vacuum degasser uses the suction of the vacuum pump to establish an under balanced pressure area in the vacuum cylinder and causes the drilling fluid into the hollow shaft of the rotator through suction pipe under the atmosphere pressure, and then lets the fluid spray to the walls of the cylinder from the windows on the hollow shaft, now the gas bubble cut in the mud may break and run off in the function of vacuum pump suction to a safe area due to the fluid collision and bubble separator. However, the mud will enter the drainage cavity forced by its self-weight and pass the rotator and discharge off the cylinder. In addition, drilling mud can enter the pump cylinder only through the suction pipe, and can’t be sucked in through the discharge pipe because the vacuum pump and the master motor are started simultaneously and the rotator connected to the motor will revolve at a high speed.
KOSUN is capable of providing customers with such three series as oil & gas drilling solids control equipment, oilfield decanter centrifuges and drilling waste treatment equipment, including 25 categories of products, which are extensively used in oil & gas drilling and workover, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, industrial wastewater treatment, environmentally friendly sewage treatment, waste oil recovery, drilling mud system, etc.
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