| 主权项 |
1. A method of servicing a well with a well servicing fluid having reduced polymer degradation, the method comprising:
using a well servicing fluid formed prior to introduction into the well with components comprising at least one free radical scavenger, at least one polymer, erythorbate, and an aqueous based solvent including a brine having a density of about 8.4 pounds per gallon or more, the at least one free radical scavenger being selected from the group consisting of methyl ether hydroquinone, gallic acid, methyl gallate, and melatonin; introducing the well servicing fluid containing the free radical scavenger, polymer, and brine into the well; and reducing degradation of the polymer compared to the degradation that would occur for the same well servicing fluid without the free radical scavenger at the same temperature, with the proviso that the free radical scavenger is not erythorbate, lignin or lignin derivatives. |
