Foamed treatment fluids for lost circulation control

A method of lost circulation control comprising:

• introducing a foamed treatment fluid through a drill string, out through a drill bit on the drill string, and into a lost circulation zone in a subterranean formation, wherein the foamed treatment fluid comprises:
• a cement;
• a viscosifying agent;
• a thixotropic additive;
• a foaming surfactant;
• a gas;
• and
• water;
• wherein the foaming surfactant comprises a polyethylene glycol alkyl ether (C6-C10), sulfate ammonium salt;
• wherein the foamed treatment fluid has a 10-second static gel strength of at least about 15 lbf/100 ft2, and a 10-minute static gel strength of at least about 70 lbf/100 ft2;
• and
• wherein the foamed treatment fluid has a density of about 8 lb/gal to about 11 lb/gal;
• allowing the foamed treatment fluid to set in the lost circulation zone to seal the lost circulation zone, such that the foamed treatment reduce loss of drilling fluid into the lost circulation zone.

A method of lost circulation control comprising:

• introducing a foamed treatment fluid through a drill string, out through a drill bit on the drill string, and into a lost circulation zone in a subterranean formation, wherein the foamed treatment fluid comprises:
• a cement, wherein the cement comprises at least one cementitious material selected from the group consisting of a Portland cement, gypsum cement, high alumina content cement, slag cement, a Sorel cement and combinations thereof, wherein the cement further comprises a pozzolan cement that comprises at least one silica source selected from the group consisting of fly ash, slag, silica fume, fumed silica, crystalline silica, silica flour, cement kiln dust, volcanic rock, perlite, metakaolin, diatomaceous earth, zeolite, shale, agricultural waste ash, and combinations thereof;
• a viscosifying agent wherein the viscosifying agent comprises a synthetic clay;
• a thixotropic additive, wherein the thixotropic additive comprises at least one component selected from the group consisting of fumed silica, sodium silicate, potassium silicate, silicic acid, colloidal silicic acid, and combinations thereof;
• a foaming surfactant, wherein the foaming surfactant comprises a polyethylene glycol alkyl ether (C6-C10), sulfate ammonium salt;
• a gas;
• and
• water;
• wherein the foamed treatment fluid has a 10-second static gel strength of at least about 15 lbf/100 ft2, and a 10-minute static gel strength of at least about 70 lbf/100 ft2;
• and
• wherein the foamed treatment fluid has a density of about 8 lb/gal to about 11 lb/gal;
• and
• setting the foamed treatment fluid in the lost circulation zone to seal the lost circulation zone, such that the foamed treatment reduce loss of drilling fluid into the lost circulation zone.