METHOD OF USING SURFACE MODIFYING METALLIC TREATMENT AGENTS TO TREAT SUBTERRANEAN FORMATIONS Russian patent published in 2018 - IPC E21B43/22 C09K8/584 

FIELD: drilling of soil or rock.

SUBSTANCE: invention relates to treating a subterranean formation for modifying a surface. Method of treating a siliceous or metal oxide-containing subterranean formation penetrated by a well to increase the production of hydrocarbons comprising pumping into the formation a surface modifying treatment agent having a metallic anchor and a hydrophobic tail, and binding the metal of the metallic anchor of the surface modifying treatment agent to the siliceous formation or the metal of the metal oxide-containing subterranean formation. Method of treating a siliceous or metal oxide-containing subterranean formation penetrated by a well to increase the production of hydrocarbons, according to the second embodiment, comprising pumping into the formation a surface modifying treatment agent having the product of a metal containing organic ligand and an organo-silicon containing hydrophobic material, wherein the metal of the metal containing organic ligand is selected from the group consisting of a group 3, 4, 5 or 6 metal and the organic ligand of the metal containing organic ligand is selected from the group consisting of alkoxides, halides, keto acids, amines and acrylates, and attaching the surface modifying treatment agent to the formation. Method of treating a siliceous or metal oxide-containing subterranean formation penetrated by a well to increase the production of hydrocarbons, according to the third embodiment, comprising a) pumping into the well a treatment fluid comprising a surface modifying treatment agent having an anchor and a tail, and b) binding the surface modifying treatment agent onto the surface of the subterranean formation by forming a monolayer or multi-layer assembly by self-alignment of the tail, wherein prior to step (a) the amount of sites for the surface modifying treatment agent to bind onto the surface of the subterranean formation are increased by pre-treating the subterranean formation with a non-aqueous fluid. Invention is developed in dependent items of the formula.

EFFECT: higher efficiency of processing.

34 cl, 6 dwg, 4 tbl, 7 ex