Polyacrylamide (PAM) plays an extremely important role in oilfield chemical treatment agents. Its five functions can be summarized as follows:
1, thickening and viscosification function:
Polyacrylamide can increase the viscosity of water and form a high viscosity displacement agent. This viscosification makes it easier for water to fill small pores and fractures when injected into the reservoir, thus increasing the recovery rate of the reservoir.
In the drilling process, polyacrylamide as drilling mud conditioning agent, can adjust the viscosity of the mud, improve the flow of drilling fluid, reduce the resistance and friction in the drilling process, and improve the drilling efficiency.
2, flocculation and precipitation function:
Polyacrylamide can form a network structure in water, effectively trapping and settling suspended particles, heavy metals and pollutants, and improving the cleanliness of water quality.
In the oil field, polyacrylamide can be combined with trace impurities in the oil to form a precipitate, so as to separate these impurities from the oil and improve the quality of the oil.
3, improve the oil-water flow rate ratio:
In the process of water injection, polyacrylamide can increase the viscosity of driving fluid by adjusting the rheology of injected water, improve the efficiency of water flooding wave, so that water and oil can flow forward more evenly, so as to improve the oil recovery rate.
4. Stabilizing lotion:
In oil Wells, oil and water often form emulsions, making oil recovery difficult. Polyacrylamide can form a polymer in the water phase, stabilize the emulsion and prevent the mixing of water and oil, thus improving oil recovery.
5. Reduce mining costs and be environmentally friendly:
Polyacrylamide has good precipitation performance, can quickly settle suspended matter and sediment in water, reduce oil well blockage and silt phenomenon, reduce maintenance costs and cleaning cycle, and extend the service life of oil Wells.
Compared to conventional chemicals, polyacrylamide degrades faster in water bodies and does not create lasting pollutants in the environment. At the same time, by adjusting its structure and polymerization degree, it can improve its biodegradability and reduce its impact on the ecological environment.
In addition, polyacrylamide has other applications in oilfield chemical treatment agents, such as water shuffling adjuster and fracturing fluid additive. These applications further demonstrate the versatility and importance of polyacrylamide in oilfield development.
In summary, the five functions of polyacrylamide in oilfield chemical treatment agents include thickening and viscosification, flocculation and precipitation, improving oil-water flow rate ratio, stabilizing emulsion, reducing production costs and environmental friendliness, etc. These functions are of great significance for improving oilfield production efficiency and oil quality.