FIELD: technological processes; mining.
SUBSTANCE: present invention relates to a method for treating a subterranean formation to modify a surface. Method of treating a siliceous or metal oxide-containing subterranean formation penetrated by a well comprises pumping into the well a surface modifying treatment agent containing an organic phosphorus-containing acid derivative as an anchor and a fluorine-containing residue as a hydrophobic tail, wherein the hydrophobic tail is directly attached to the anchor, when the surface modification agent is pumped into the well, binding the surface modifying treatment agent to the surface of the subterranean formation by attaching the anchor to the formation, and aligning the surface modifying treatment agent to the siliceous or metal oxide-containing subterranean formation such that the hydrophobic tail is directed away from the surface of the formation. In another embodiment, the method of treating a siliceous or metal oxide-containing subterranean formation penetrated by a well comprises: a) pumping into the well a well treatment fluid containing a surface modifying treatment agent, which comprises a derivative of an organic phosphorus-containing acid as an anchor and a fluorine-containing residue as a hydrophobic 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, where prior to step (a) the number of sites for binding the surface modifying treatment agent to the surface of the subterranean formation is increased by pre-treating the subterranean formation with a non-aqueous fluid. In a third embodiment, a method for treating a siliceous or metal oxide-containing subterranean formation, penetrated by a well, comprises: pumping into the well a surface modifying treatment agent containing an organic phosphorus-containing acid derivative as an anchor and a fluorine-containing residue as a hydrophobic tail, where the hydrophobic tail is directly or indirectly attached to the anchor, and binding of the surface modifying treatment agent the surface of the subterranean formation by attaching the anchor to the formation. Invention is developed in dependent items of the formula.
EFFECT: higher efficiency of treatment.
29 cl, 4 dwg, 4 tbl, 6 ex
