The freewater knockout is either a horizontal or vertical vessel designed to remove a portion of the wellstream commonly referred to as free water. Dispersing free water from the wellstream reduces the treating system load. With its large water/ oil interface area a freewater knockout will allow the operator to reduce the size of the treating vessel in most instances where large volumes of water are present.

TYPE A                                                 

  • The most common application for the Freewater Knockout is a straight 2 Phase operation. The gas outlet is plugged and the oil and gas exit through the same connection to the treater. The knockout operates at just the pressure required forcing the oil and gas into the treater. This is the least expense and requires fewer controls.

 

TYPE B

  • By installing a liquid / gas back pressure valve on the oil outlet connection the knockout can be employed where an atmospheric gunbarrel is being used for treating. This allows for higher pressures required to unload the water.

 

TYPE C

  • This Freewater Knockout is used in a 3 Phase operation. The vessel pressure is controlled by a gas back pressure valve and vented separately. A head operated treater type dump valve releases the oil. This method is used when it is not desirable to release gas to the treating system.