HIGH-PERMEABILITY PROPPING AGENT FOR HYDRAULIC FRACTURING Russian patent published in 2016 - IPC E21B43/267 C09K8/80 

FIELD: mining.

SUBSTANCE: invention relates to production of high-permeability filling of proppant in hydraulic fracturing. Method of increasing permeability of filling of a proppant inside the rupture, which includes: feeding into at least part of the rupture in an underground formation of a mixture of a plurality of proppants and multiple particles to form a proppant filling, where at least a part of the particles are collapsible particles, wherein the part of the collapsible particles comprises collapsible metal in the form of a pressed product of relatively less collapsible powders, where the said pressed product is relatively more collapsible, and destruction of at least a part of the particles to create a proppant filling, having a relatively higher permeability as compared with permeability of the proppant filling before destruction. Mixture containing multiple proppants and a plurality of particles, where at least part of the particles is composed of collapsible metal in the form of pressed product of relatively less collapsible powders, where the said pressed product is relatively more breakable. Invention is developed in depending points of the formula.

EFFECT: higher efficiency of processing.

26 cl, 8 dwg