METHOD FOR CLEANING RESERVOIR FROM DEPOSITS Russian patent published in 2020 - IPC B08B9/08 

FIELD: technological processes.

SUBSTANCE: method of cleaning reservoir from deposits relates to purification processes, in particular to cleaning of inner surfaces of reservoirs, and can be used in industry, for example in oil industry. Method includes thermal treatment of washing medium, supply of liquid or steam flow under pressure by means of washing plant for mechanical cleaning. For washing out of deposits water flow is used under pressure from 5 to 300 MPa with temperature of 35–374 ºC or steam under pressure from 0.2 to 22 MPa with temperature from 100 ºC to 374 ºC, supplied through remotely controlled mobile washing plant. Plant is driven by hydraulic drive with hydraulic fluid fed at pressure from 5 to 300 MPa. Removal of bottom sediments is performed through suction pipe of vacuum intake device with rarefaction from -0.01 to -1.00 MPa. Control of reservoir cleaning is carried out remotely.

EFFECT: higher efficiency of sediment washing with preservation of waste characteristics, which allow their secondary use, reduction of losses of stored products at minimization of harmful effect on a person.

8 cl, 4 ex