Foamed cement compositions, additives, and associated methods

A method of cementing, comprising:

• providing a foamed cement composition comprising:
• a hydraulic cement;
• water;
• a gas;
• and
• a foaming and stabilizing additive comprising a mixture of
• an alkali salt of an alkyl ether sulfate surfactant, wherein the alkali salt of the alkyl ether sulfate surfactant comprises a mixture of an alkali salt of a C6-10 alkyl ether sulfate surfactant, and an alkali salt of a C2-4 alkyl ether sulfate surfactant,
• an alkyl or alkene amidopropyl betaine surfactant having the formula R—CONHCH2CH2CH2N+(CH3)2CH2CO2, wherein R is a decyl, a cocoyl, a lauryl, a cetyl, or an oleyl radical,
• an alkyl or alkene amidopropyl dimethylamine oxide surfactant having the formula R—CONHCH2CH2CH2N+(CH3)2O−, wherein R is a decyl, a cocoyl, a lauryl, a cetyl, or an oleyl radical,
• sodium chloride, and
• water;
• placing the foamed cement composition in a location to be cemented;
• and
• allowing the foamed cement composition to set therein.