WELL SEPARATOR Russian patent published in 2007 - IPC E21B43/38 

FIELD: oil industry, possible use in system for maintaining bed pressure during inter-well transit of water for separating structurally condensed oil from extracted product of water well transferred from former oil extractive category due to water-flooding of productive bed.

SUBSTANCE: device includes separating chamber and outlet aperture for water below separating chamber. As separating chamber device uses lower section of well limited by casing string and separating collar, which is mounted on tail, connected to immersed electric motor of electric centrifugal pump, suspended in well on tubing column. Tail in lower section below separating collar is provided with limiter, and in upper section above separating collar - with outlet aperture for water. As outlet aperture for oil, draining pipe is used with windows and branch pipes for connecting space below separating collar and space above the intake of electric centrifugal pump. On the tail below separating collar a cover is positioned with possible vertical movement along the tail in form of a barrel with guides for which it is possible to contact tail limiter and also walls of internal surface of casing string of well using spring-loaded dentils.

EFFECT: separation of small oil volumes from large water volumes.

2 dwg