Abstract: The present invention relates to an asphaltene-dissolving oil-external emulsion for acidization and methods of using the same. In various embodiments, the present invention provides a method of treating a subterranean formation, including obtaining or providing an oil-external water-internal emulsion. The emulsion includes an asphaltene-dissolving composition, emulsifier, and aqueous acid. The method also includes placing the composition in a subterranean formation downhole.

Abstract: The present disclosure relates the methods of treating a subterranean formation. In various embodiments, an acidic treatment fluid can be injected through tubing while a non-acidic fluid is pumped through an annulus. In various embodiments, acidic treatment fluid can be pumped through coiled tubing while at least one of acidic treatment fluid and non-acidic fluid are pumped through a second tube surrounding the coiled tubing and an annulus disposed the second tube and a borehole. Various embodiments also include methods for stimulating a well and acidization of the subterranean formation.