Product Description
This product is an advanced high-temperature polymer flooding agent specifically engineered for enhanced oil recovery (EOR) applications in challenging reservoir environments. It is a specially modified polyacrylamide (PAM) co-polymer, synthesized through the strategic incorporation of 2-Acrylamido-2-Methylpropane Sulfonic Acid (AMPS) monomers. This molecular design significantly enhances the polymer's properties, granting it exceptional temperature resistance, superior salt tolerance, increased hydrophilicity, and robust viscosity-building capabilities, making it an ideal high-temperature polymer flooding agent for demanding thermal recovery projects.
The incorporation of sulfonic acid groups via AMPS monomers greatly improves the polymer's hydration capacity and hydrodynamic volume compared to conventional hydrolyzed polyacrylamide (HPAM). This results in outstanding fluid loss control and stable viscosity profiles not only in fresh water but also in brines with high concentrations of divalent ions such as calcium and magnesium, maintaining performance stability under high-temperature and high-pressure downhole conditions. As a result, this high-temperature polymer flooding agent delivers reliable mobility control even in harsh salinity environments where standard polymers would degrade rapidly.
The mechanism of this EOR agent involves dissolving the AMPS-PAM co-polymer into injection water to significantly increase its viscosity, thereby improving the oil-water mobility ratio. When injected into the reservoir, the polymer molecules are captured and adsorbed within the pore throats of the formation rock. This selectively reduces permeability in high-flow channels or previously swept layers, increasing flow resistance and effectively diverting injected fluids into low-permeability, unswept zones. The process significantly improves macroscopic and microscopic sweep efficiency, expands contact between displacing fluid and residual oil, increases vertical conformance, and ultimately enhances displacement efficiency and final recovery rates.
This high-efficiency polymer is particularly suitable for mature reservoirs requiring improved conformance control and mobility ratio adjustment, especially in high-salinity and high-temperature conditions where conventional polymers fail. It appears as a free-flowing white to off-white powder with excellent solubility characteristics. The recommended dosage typically ranges from 2% to 4%, depending on specific reservoir salinity, temperature, and the required fluid rheology for optimal oil displacement.
Key Features and Benefits:
Excellent temperature and salt resistance
Enhanced hydrophilicity and viscosifying power
Effective fluid loss control in high-calcium and high-chloride environments
Improves injection profile and volumetric sweep efficiency
Increases oil recovery in secondary and tertiary recovery phases
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