Polyacrylamide is used as an additive for drilling fluids and can be used as the daling mud performance modifier in the drilling process. The role of polyacrylamide is to improve the rheology of the driling fluid, carry rock debris, lubricate the drill bit, and increase he rate of penetration. In addition, it can greatly reduce sticking accidents, reduce equipment wear, prevent well blowouts and borehole collapse, and avoid formation damage during dulling

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