Low density oil external emulsion with gelled internal phase as a gravel packing carrier fluid

A method comprising:

• providing a subterranean treatment fluid with a density less than water at downhole conditions, the subterranean treatment fluid comprising:
• an invert emulsion with a clarified diutan-based gelled aqueous internal phase and a mineral oil-based external phase, and
• an acid composition, wherein the acid composition comprises at least one of:
• an acid selected from a group consisting of:
• formic acid, acetic acid, propionic acid, lactic acid, glycolic acid, and combinations thereof, and
• an acid-generating compound selected from the group consisting of:
• an ester;
• an aliphatic polyester;
• an ortho ester;
• a poly(ortho ester);
• an ortho ether;
• a poly(ortho ether);
• a lactide;
• a poly(lactide);
• a glycolide;
• a poly(glycolide);
• an ε-caprolactone;
• a poly(ε-caprolactone);
• a hydroxybutyrate;
• a poly(hydroxybutyrate);
• an anhydride;
• a poly(anhydride);
• an aliphatic carbonate;
• an aliphatic polycarbonate;
• an amino acid;
• a poly(amino acid), and combinations thereof,
• a plurality of particulates,
• contacting a portion of a subterranean formation with the subterranean treatment fluid;
• and
• depositing at least a portion of the plurality of particulates in a portion of the subterranean formation to form a gravel pack.