DEVICE FOR CLEANING OIL-BEARING WATERS AND EFFLUENTS Russian patent published in 2014 - IPC C02F1/40 

FIELD: process engineering.

SUBSTANCE: invention relates to oil-bearing effluents treatment and can be used for treatment of oil field effluents used in system for maintaining seam pressure at oil field flooding. This device comprises main tank, perforated pipelines, one to feed oil contact mass in water supply layer and another one intended for discharge, arranged at the tank top and bottom parts, respectively. Besides, said device incorporates extra tank composed of two parts. First part is equipped with hydrophobic filter arranged horizontally, sealed and locked along the perimetre, and feed perforated pipe arranged downstream of the filter. Second part is equipped with water discharge pipe at bottom section. Note here that said first and second parts are communicated above extra tank while main tank water discharge pipe communicates with extra tank feed pipe. Main tank and extra tank feed pipe are communicated under contact mass layer via appropriate valves and accessories with hydrocarbon solvent feed pipe.

EFFECT: higher quality of water and oil yield.

1 dwg