Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO)n. It is a hard glassy solid at room temperature. Its products include glue, latex, white powder, translucent beads and flakes, etc. Good thermal stability. It can be dissolved in water in any proportion, and the aqueous solution is a uniform and transparent liquid. After long-term storage, the viscosity of the solution will decrease due to the slow degradation of the polymer, especially when the storage and transportation conditions are poor. [1] Polyacrylamide is used as a lubricant, suspending agent, clay stabilizer, oil displacing agent, water loss reducing agent and thickener in drilling, acidification, fracturing, water plugging, cementing and secondary and tertiary oil recovery. It is widely used in oilfield chemicals and is an extremely important oilfield chemical.
Polyacrylamide is a multifunctional oilfield chemical treatment agent that is widely used in drilling, cementing, completion, workover, fracturing, acidification, water injection, water plugging and profile control, and tertiary oil recovery operations, especially It is in the fields of drilling, water plugging and profile control and tertiary oil recovery. Polyacrylamide aqueous solution has high viscosity, good thickening, flocculation and rheology adjustment effects, and is used as oil displacement agent and drilling mud conditioner in oil production. In the middle and later stages of oil exploration, in order to improve crude oil recovery, my country currently mainly promotes polymer flooding and ternary composite flooding technologies. By injecting polyacrylamide aqueous solution, the oil-water velocity ratio is improved, thereby increasing the crude oil content in the produced material. Adding polyacrylamide to tertiary oil recovery can increase oil displacement capacity, avoid oil layer breakdown, and improve oil bed recovery yield. China's petroleum industry is the largest user of polyacrylamide. The technological progress of polyacrylamide has promoted the development of China's petroleum industry. The demand of the petroleum industry has accelerated the pace of polyacrylamide's technological innovation and the development of the industry.