METHOD AND SYSTEM FOR PREPARATION OF LIQUID FOR HYDRAULIC FRACTURES Russian patent published in 2016 - IPC C09K8/80 E21B43/267 

FIELD: mining.

SUBSTANCE: present invention relates to production of propping agent used in production of hydrocarbons. Method of creating a propping agent with particles of required sizes, obtained from sludge extracted from the well for extraction of hydrocarbons subjected to hydraulic fracturing, which contains the following stages: separation of water from sludge to form a stream of moist solid particles and liquid flow, mixing of the wet flow of solid particles with solid particles with formation of loaded material, melting of loaded material to obtain the material of fused proppant, abrupt cooling of the melted material, crushing of cooled material of proppant sorting of particles of crushed material by size and mixing of crushed material particles, not corresponding to specified size, with the loaded material. System for creation of propping agent with particles of required size, obtained from sludge extracted from the well for extraction of hydrocarbons subjected to hydraulic fracturing, containing elements: means of water separation from sludge, means for mixing of flow of wet solid particles with solid particles, means for melting of loaded material, means for abrupt cooling of melted material, means for crushing of cooled material, means for sorting of crushed material to obtain particles of the required size, and means for mixing of crushed material, the size of particles of which does not correspond to the required one, with the loaded material. System for use when performing operations of hydraulic fracturing, containing: first separator, having a nozzle for intake of sludge and a nozzle for discharge of sludge with the first water content, second separator containing a nozzle for intake of sludge arranged so that it can receive the sludge from the sludge discharge nozzle of the first separator, and a nozzle for discharge of a flow of wet solid particles with the second, lower water content, furnace for production of melted proppant, which is located so that it can enter the receive sludge from the nozzle for discharge of a flow of wet solid particles from the second separator, and equipped with a discharge opening, cooler located so that it can receive a fused propping agent from the furnace, crusher arranged so that it can receive cooled propping agent from the cooler, mill located so that it can receive crushed propping agent from the crusher, first screen arranged so that it can receive crushed material from the mill, and the second screen arranged so that it can receive material which passed through the first screen. Invention is developed in subclaims.

EFFECT: provision of public safety during hydraulic fracturing of formations.

29 cl, 10 dwg