Conventional polymer for enhanced oil recovery, oilfield type II polymer, temperature-resistant and salt-resistant polymer
Product Features
1. Polyacrylamide is used as an oil displacement agent in the petroleum exploitation industry to increase the viscosity of injected water, improve the oil-water flow rate ratio, enlarge swept volume and enhance oil recovery efficiency. Polyacrylamide can be used alone or in combination with alkali and surfactant to form SP or ASP flooding. Polymer flooding, SP and ASP flooding are the main measures to further control oil recovery cost and enhance oil recovery efficiency in the later stage of water flooding in the oilfield.
2. This product is a tertiary oil recovery product designed and developed through special molecules according to the oil displacement mechanism and reservoir characteristics. The product has remarkable viscosity-increasing effect, good high temperature resistance, high salt resistance, shear resistance and good thermal stability. It can effectively increase the viscosity of displacement fluid, improve sweep coefficient, enlarge swept volume and enhance oil recovery efficiency.
Performance Indicators
Test item | Technical specification | ||||
Conventional oil-displacement type [1] | Oilfield type II [2] | Temperature-resistant and salt-resistant type [3] | |||
Appearance | White granule or powder | White granule or powder | White granule or powder | ||
Grain size | Content of grains with a size less than 0.15mm, % | ≤5.0 | ≤5.0 | ≤5.0 | |
Content of grains with a size larger than 1.0mm, % | ≤5.0 | ≤5.0 | ≤5.0 | ||
Solid content, % | ≥89.0 | ≥89.0 | ≥89.0 | ||
Molecular weight, 104 | 1600～2500 | ≥1800 | ≥2500 | ≥2000 | |
Filtration ratio | ≤2.0 | ≤2.0 | ≤1.5 | ≤1.5 | |
Intrinsic viscosity, ml/g | ≥2000～2400 | ≥2200 | ≥2400 | ≥2400 | |
Apparent viscosity, mPa·s | 10～14 | ≥11.5 | ≥13.0 | ≥15.0 | |
*[1] Conventional oil-displacement type: apparent viscosity test temperature of 60°C, test concentration of 1500 mg/l and test salinity of 6000mg/l.
*[2] Oilfield type II: test temperature of 75°C, test concentration of 1500 mg/l and test salinity of 19000mg/l.
*[3] Temperature-resistant and salt-resistant type: test temperature of 85°C, test concentration of 1500 mg/l and test salinity of 33000mg/l.
Packaging and Storage
The products are packaged with paper-plastic composite packaging, with a net weight of 25kg per bag; or packed in container bags, with a net weight of 750kg per bag; or determined according to the user's needs; the shelf life is 2 years. The product shall be stored in a dry, cool and ventilated place.
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