The role of polyacrylamide in oil fields

What role does polyacrylamide play in oil fields? PAM polyacrylamide, due to its thickening, flocculation and rheological property regulation functions, can be used as an additive for various purposes in oil extraction, such as drilling fluid, fracturing fluid, and polymer oil displacement to enhance oil recovery (EOR). In oil extraction, the key to application lies in the combination of the conditions and requirements of use, the reasonable design and selection of its composition structure, such as molecular weight, molecular form, ion degree, etc., as well as the correct construction process.

Polyacrylamide is a multifunctional additive. According to the research report of relevant departments, when polyacrylamide for oil fields is injected into brine during secondary oil recovery, it can enhance the injection capacity of brine and effectively extract crude oil from the porous rock surface. Adding polyacrylamide to the water-oil emulsion can significantly reduce the viscosity of the emulsion. When added to the oil storage tank, it can reduce the water content on the surface of the oil tank and lower the cost of oil extraction. In oil extraction, the viscosity of the injected water can be increased to prevent the penetration of the oil layer and improve the oil recovery rate.

In tertiary oil recovery, polyacrylamide used in oil fields can be employed as a thickener to enhance oil displacement capacity and improve the extraction effect of oil beds. In the oilfield field, anionic and cationic polyacrylamide can be used to protect the injected groundwater from seeping through the opening holes and condensing to recover crude oil, improve the economic efficiency of oil well production, and control the infiltration of water into the oil layer.

In addition, polyacrylamide for oil fields can also be used as an additive for fracturing fluids, a lubricant, a drag reducer, etc. In oilfield chemistry, polyacrylamide is a multi-purpose additive, playing a significant role in drilling fluids, well flushing fluids, water injection for oil recovery, and enhanced oil recovery.