Enhanced Oil Recovery (EOR) techniques are vital for maximizing oil extraction from mature reservoirs. Among the key chemical additives employed, Polyacrylamide (PAM) plays a pivotal role due to its exceptional ability to modify fluid properties, thereby improving oil displacement and increasing reservoir recovery rates. This article explores the multifaceted contributions of PAM in EOR operations.

PAM's primary function in EOR is its high viscosity-increasing capability. When injected into oil reservoirs, PAM solutions increase the viscosity of the injected water, effectively matching the viscosity of the oil. This viscosity-enhancement is crucial for improving the sweep efficiency, ensuring that the injected water can effectively push the oil towards the production wells. Without adequate viscosity, the injected water tends to bypass the oil, flowing through the most permeable zones, leaving a significant portion of the oil trapped.

Beyond viscosity modification, PAM also acts as a mobility control agent. It helps to reduce the mobility ratio between the injected fluid and the reservoir oil, preventing viscous fingering – a phenomenon where the less viscous injected fluid breaks through the oil bank prematurely. This controlled mobility ensures a more uniform displacement of oil throughout the reservoir.

The effectiveness of PAM in EOR is influenced by several factors, including its molecular weight, degree of hydrolysis, and tolerance to reservoir conditions such as temperature, salinity, and shear. NINGBO INNO PHARMCHEM CO.,LTD. offers a range of specialized PAM products engineered to withstand harsh reservoir environments, ensuring consistent performance and maximizing oil recovery.

PAM's application in EOR is a testament to its versatility and effectiveness as a chemical additive. By improving sweep efficiency and mobility control, PAM significantly contributes to the economic viability of oil extraction from challenging reservoirs. Its role in maximizing oil recovery underscores its importance in the global energy landscape.