Product and method for treating well bores

摘要: A product, system and method for treating a well bore using concentrated treatment composition enclosed in soluble container. The composition-filled container is deposited the well, preferably through drill string, followed by solvent, such as drilling mud or water, to form circulating solution characterized ability circulate well. Most of recovered at surface tank, example. In “sweeping” operation partially hydrolyzed polyacrylamide powder tube dropped down string. then flushed with water liquified polymer hole. more sweep cuttings from bore.