NINGBO INNO PHARMCHEM CO.,LTD. recognizes the persistent challenges in oilfield operations, particularly concerning water management within reservoirs. Unwanted water production can significantly reduce oil recovery efficiency and increase operational costs. Polyacrylamide (PAM) has emerged as a sophisticated and effective solution for water shutoff, playing a crucial role in optimizing reservoir performance.

In many oil reservoirs, production is complicated by the presence of water that flows more readily than oil, a phenomenon often exacerbated by reservoir heterogeneity. This 'water channeling' means that water bypasses oil-rich zones, leading to premature water breakthrough and reduced ultimate oil recovery. Addressing this requires selective blocking of high-permeability water pathways without impeding oil flow. This is precisely where polyacrylamide excels.

Polyacrylamide functions as a water shutoff agent through its unique chemical properties. When injected into a specific zone of the reservoir, PAM, often in combination with crosslinking agents, forms a gel or a highly viscous, low-permeability barrier. This barrier selectively impedes the flow of water into the production wells. The selectivity is key; PAM-based treatments are designed to have a significantly higher impact on water permeability than on oil permeability, ensuring that oil can still be effectively produced.

The application of polyacrylamide for water shutoff offers several distinct advantages. Firstly, it can dramatically reduce the water-to-oil ratio (WOR) in production wells, thereby increasing the net oil production and improving the economic viability of the well. Secondly, by controlling water influx, it helps maintain reservoir energy, allowing for more efficient oil displacement and contributing to a higher ultimate recovery factor. Thirdly, PAM treatments are often tailored to specific reservoir conditions, allowing for customized solutions that maximize effectiveness.

The mechanism involves controlling the rheology of the injected fluid and its interaction with the porous media. The polymer's ability to create a highly viscous solution, or even a gel matrix when crosslinked, effectively plugs the high-permeability paths that preferentially conduct water. This targeted approach is far more efficient than simply reducing overall reservoir pressure.

NINGBO INNO PHARMCHEM CO.,LTD. supplies high-quality polyacrylamide products suitable for these demanding oilfield applications. By employing PAM for water shutoff, operators can achieve better reservoir management, enhance oil recovery, and ultimately improve the profitability of their operations. Our commitment is to provide solutions that address the core challenges faced by the industry.