METHOD FOR WELL COMPLETION Russian patent published in 1994 - IPC

FIELD: well completion. SUBSTANCE: metal powder is preliminarily suspended in water-repelling fluids injected into well and forced in borehole to formation porous space in form of homogeneous suspension-emulsion system. To reduce terms of creation of depression, suspension-emulsion system is injected into well and forced through borehole by portions of 100-500 l by alternating them with portions of surfactant aqueous solution so that interval between separate portions of suspension-emulsion system measures 200-1000 m. Used as amphoteric metal is aluminium powder, and water-repelling fluid is used in form of oil or products of its processing, or syloxanes. Aqueous solution of alkalis and acids are used as activators. EFFECT: simplified creation of depression, improved reservoir properties of formation borehole zone, and uniform distribution of metal powder in activator. 3 cl, 1 dwg