PROCESSO DE TRATAMENTO E FRATURA DE UMA FORMACAO SUBTERRANEA,PROCESSO PARA DESVIAR FLUIDOS DE UMA ZONA DE UMA FORMACAO SUBTERRANEA E PROCESSO PARA TRATAMENTO DE POCO

摘要

A method of treating a subterranean formation wherein a well treatment composition comprising a dispersion of a water-in-oil emulsion in an aqueous medium is injected into the formation. The water-in-oil emulsion has an internal aqueous phase and an external phase containing a liquid hydrocarbon and a surfactant soluble in the hydrocarbon. The compositions can be designed to perform various well treatment applications including hydraulic fracturing and acidizing and can also be used to encapsulate or transport well treatment materials and chemicals into the wellbore or formation.