Separating Foaming Crude Oil

When pressure is reduced on certain types of crude oil, tiny spheres (bubbles) of gas are encased in a thin film of oil when the gas comes out of solution. Technical Data used in the field explained in oil and gas courses in Islamabad. This may result in foam, or froth, being dispersed in the oil and creates what is known as “foaming” oil. In other types of crude oil, the viscosity and surface tension of the oil may mechanically lock gas in the oil and can cause an effect similar to foam. Oil foam will not be stable or long-lasting unless a foaming agent is present in the oil.

Foaming greatly reduces the capacity of oil and gas separators because a much longer retention time is required to separate adequately a given quantity of foaming crude oil. Foaming crude oil cannot be measured accurately with positive-displacement meters or with conventional volumetric metering vessels. These problems, combined with the potential loss of oil and gas because of improper separation, emphasize the need for special equipment and procedures in handling foaming crude oil. Some more details of oil and gas courses in Islamabad are as under.

There are many special designs of separators for handling foaming crude oil. The special horizontal separator for handling foaming oil is one of the simpler, more effective units available for this service. The special degassing element used on the inlet of this separator shown in Section CC gently agitates the well fluid and assists in removing gas from the oil and in breaking foam bubbles as they flow through the inlet element.

The defaming plates, which extend from near the inlet end to near the outlet end of the separator, are spaced 4 in. apart and are shaped with an apex at the vertical center of the separator. The plates that are immersed in oil assist in removing no solution gas from the oil and in breaking foam in the oil. The plates that are above the oil/gas interface in the gas section of the separator remove  oil mist from the gas and assist in breaking foam that may exist in the gas section of the vessel.

The 6-in.-thick knitted-wire-mesh mist extractor (located below the gas outlet) removes the remainder of the liquid mist from the gas and breaks or removes the remaining foam bubbles from the gas. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join oil and gas courses in Rawalpindi.