Foamed treatment fluids and associated methods

A foamed fracturing fluid comprising:

• water;
• a gas;
• and
• a foaming and foam stabilizing surfactant mixture comprising:
• an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C6-10 alkyl ether sulfate, and an alkali salt of a C4 alkyl ether sulfate,
• an alkyl amidopropyl amphoteric surfactant comprising at least one alkyl amidopropyl amphoteric surfactant selected from the group consisting of an alkyl amidopropyl hydroxysultaine, an alkyl amidopropyl betaine, and any combination thereof, and
• an alkyl amidopropyl dimethylamine oxide;
• proppant particulates;
• and
• a gelling agent.

A foamed treatment fluid comprising:

• water;
• a gelling agent;
• a gas;
• and
• a foaming and foam stabilizing surfactant mixture comprising:
• an ammonium salt of an alkyl ether sulfate, wherein the ammonium salt of the alkyl ether sulfate comprises an ammonium salt of a C6-10 alkyl ether sulfate having in the range of from about 1.5 moles to about 2 moles of ethylene oxide substitution, and an alkali salt of a C4 alkyl ether sulfate having in the range of from about 1.8 to about 2.5 moles of ethylene oxide substitution,
• a cocamidopropyl amphoteric surfactant selected from the group consisting of a cocamidopropyl hydroxysultaine, a cocamidopropyl betaine, and combinations thereof, and
• a cocamidopropyl dimethylamine oxide.