METHOD OF PACKING SOLID MATERIALS DURING UNDERGROUND TREATMENT OPERATIONS Russian patent published in 2019 - IPC C09K8/03 C09K8/86 C09K8/92 E21B43/267 

FIELD: chemistry.

SUBSTANCE: invention relates to proppant compositions, methods for consolidating a formation, and extracting fluids from a subterranean formation. Disclosed compositions include (1) aggregating compositions capable of forming deformable partial or full coatings on the surfaces of the formation, the surfaces of the formation particles, the surfaces of the solid phase of the borehole fluid and / or the surfaces of the proppants, where said coatings increase the tendency to aggregation and / or agglomeration of particles and surfaces so as to obtain clusters or columns of particles with deformable coatings, and (2) aggregation stabilising and / or enhancing compositions, capable of changing the properties of coated clusters or columns so as to obtain cemented, stabilised and / or reinforced clusters or columns. Methods for stabilising clusters or columns of aggregated particles include (1) treating the particles with an aggregating composition to produce aggregated clusters or columns, and (2) treating clusters or columns of aggregated particles with a stabilising or reinforcing composition to form cemented, stabilised and / or reinforced clusters or columns. Invention is developed in dependent items of the formula.

EFFECT: technical result is reducing proppant removal, ensuring control of the migration of fine-grained particles.

24 cl, 2 ex, 3 tbl, 45 dwg