Patent ID: 7767630

Claim:
A method for treating a well penetrating a subterranean formation which comprises introducing into the well a treatment fluid comprising a gel and an effective gel stabilizing amount of a chalcogen heterocyclic electron donating compound selected from the group consisting of: wherein: —R 1 is H or —CH 2 Z; —Z is —H or —X; —X is —Cl or —Br; —R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 16 , R 17 , R 18 , and R 19 are independently selected from R 1 ; NO 2 ; or R 2 with R 3 , R 4 with R 5 , R 6 with R 7 , R 8 with R 9 , R 16 with R 17 , and R 18 with R 19 , and the adjoining carbon on the heterocyclic ring, form a C═O group; R 20 and R 21 are —H; R 30 , R 31 , R 32 and R 33 are independently selected from R 1 , —CH(OCH 2 CH 3 ) 2 , —SCH 3 ; Y is —O or —S; and R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 and R 29 are independently selected from —X, R 1 and —NO 2 .