disclosed are methods of treating a producing well by removing wellbore solids . accordingly , a first , polymer containing fluid is placed in the solids bed , and a second , viscosifying fluid is then placed into the solids bed thereby agitating the solids in the bed and causing the formation of a gel capsules when mixed with the biopolymer fluid . these gel capsules are capable of trapping or entraining the agitated solids . the gel capsules typically have a relatively high volume and a relatively low density , thereby making their removal from the wellbore easier .