Salt resistant, high-temperature resistant, ultra-low interfacial tension oil displacement surfactant

一、performance

At present, major oil fields in China have entered the mid to late stage of oilfield development, and the reservoir conditions are becoming increasingly complex, facing serious heterogeneity in the formation and complex distribution of remaining oil. Low permeability reservoirs contain abundant oil and gas resources, but with low porosity and permeability, low water flooding oil washing efficiency, small affected volume, high injection pressure, and relatively high development difficulty, which seriously restricts the sustained and efficient development of the oilfield. This product is scientifically formulated from various surfactants and additives, which can reduce the interfacial tension between oil and water to 10-3mN/m. By reducing capillary pressure and/or capillary end effect, it has good interfacial activity, causing a reversal of rock wettability, reducing capillary resistance and injection pressure, making crude oil easy to peel off and be displaced by displacement fluids, thereby improving oil and gas recovery rate.

二、TECHNICAL INDEX

  Appearance: colorless to light yellow liquid

        PH: 7-9

三、Product features

1、Has extremely strong resistance to hard water and electrolytes, with salt resistance up to 120000ppm and temperature resistance up to 130 ℃;

2、The interfacial tension between oil and water can be reduced to 10-3mN/m under alkaline free conditions, which can be used alone or combined with chemicals such as polyacrylamide and alkali for binary composite flooding and ternary composite flooding;

3、High surface activity greatly promotes the detachment and effective dispersion of crude oil from rocks, achieving the drive of residual oil, improving oil washing efficiency, and thus improving oil recovery rate;

4、Free from toxic and harmful chemicals, non-toxic, environmentally friendly, and highly safe.

四、Uses

This product is mainly used as an ultra-low interface enhanced oil recovery agent in oilfield oil wells.

五、package

200 kilograms in plastic drums.