investigation of the effect of lascorbic acid on class g oil well cement

Various chemicals can have different effects on the properties of the cement slurry. in this paper, the different effects of lascorbic acid have been investigated on the important parameters of cement slurry made from class g oil well cement. these parameters included the amount of free fluid, rheological properties, thickening time, and compressive strength. several cement slurries were made with different dosages of lascorbic acid. by increasing the amount of lascorbic acid, free fluids were decreased and rheological properties of the slurries were improved. this improvement in the amount of free fluid and rheological properties continued with an increase of lascorbic acid. increasing the dosage of lascorbic acid to 0.03% by weight of cement, decreased the thickening time and increased the compressive strength. in other words, lascorbic acid acted as an accelerator up to 0.03% by weight of cement and would have the role of a retarder in higher value.