Water separator

WATER SEPARATOR (EN: water knockout, water separator; DE: Wasserabscheider; FR: separateur d'eau; ES: separador de agua; RU: водоотделитель) is the apparatus for the separation of the water from the accompanying water-insoluble phases. Within the structure of the extracting installations for the preparation of the petroleum, the water separator is used for the separation of the water from the water-petroleum mixture, which is arriving from the extracting boreholes.

The water separators are sub-divided into horizontal, spherical, vertical (they are the least distributed), and hydrocyclone (are used at the productive petroleum fields since the 2nd half of the 1970-ies). Within the separators of the first three types, which are representing by themselves the containers of the respective shape, the separation of the water-petroleum emulsion proceeds on the account of the gravitational forces, while within the separators of the hydrocyclone type, the separation proceeds on the account of the centrifugal forces. The performance of the horizontal and spherical water separators with the volume from 200 to 600 cubic metres (with the mass from 40 to 100 tonnes respectively), with the water flooding of the petroleums of up to 30%, and with the delivery of the surfactants into them, is at most 4000 tonnes per day. In case of the petroleums with the water flooding of more than 30%, this indicator increases by 20% on average. The mass of the water separators, within the basis of the action of which lie the centrifugal forces, with the identical performance, is by 15 times less on average, than the mass of the gravitational water separators.