Heater Treaters

In a typical heater treater application, liquid flows through a downcomer to the base of the treater,  serving as a free-water knockout section. If the treater is located downstream of a free-water  knockout, the bottom section can be reduced in size. If the total well stream is to be treated solely  through this heater treater, then this section should be sized for a 3 to 5 minutes retention time.

This time allows for both the oil and the water to settle out and will minimize the amount of fuel gas  needed to heat the liquid stream rising through the heating section. The end of the downcomer in  the Tri-Point design is slightly below the oil water interface to “water wash” the oil being treated.  This will assist in the coalescence of water droplets in the oil.

The oil and emulsion rises over the heater fire-tubes to a coalescing section where suffi cient  retention time is provided to allow the small water particles in the oil continuous phase to coalesce  and settle to the bottom.

Treated oil flows out the oil outlet. Any gas, flashed from the oil due to heating, flows through the  equalizing line to the gas space above. The oil level is maintained by pneumatic or lever operated  dump valves. Oil water interface is controlled by an interface controller, or an adjustable external  water leg.

Tri-Point offers both vertical and horizontal treaters.

Heater Treater Features

  • design provides maximum efficency
  • designed and fabricated in accordance with asme section viii div. 1
  • engineered fire box support and fire tube supports to minimize premature thermal expansion failure
  • units can be provided with or without skid mounted shop installed controls