Petroleum additives: Petroleum is only the main energy source in the world today, but also an important strategic material. Petroleum resources products are directly related to economic development military strength competition. In recent years, chemical flooding has been widely used in oilfields to Enhanced oil recovery, resulting in increasingly serious scaling problems. In various processes of oil extraction extraction, it is necessary to apply various auxiliary agents to improve process conditions production efficiency.
The silicon scale in the oil field is mainly caused by the addition of alkali in the ternary composite flooding; The composition of silica scale is relatively complex, mainly composed of colloidal silica insoluble silicates, such as magnesium silicate, calcium silicate, etc; After the formation of silicon scale, it is dense hard, making it difficult to prevent remove in oil fields. After the formation of silicon scale, it is only easy to block the pores of the formation, but also causes the shutdown of mechanical equipment, affecting the production efficiency technology promotion of the oil field. Due to the different formation processes of silicon scale common scale, especially the metastable amorphous state of silica in water, preventing silicon scale has become a key difficult point in anti scale technology in oil fields.
There is more research on scale inhibitors in existing technologies, but there is less research on silicon scale inhibitors. The existing technologies mainly use chemical physical methods to prevent control silicon scale. Among them, chemical anti silicon scaling technology suppresses the formation of silicon scaling by adding scale inhibitors. Due to the amorphous variable nature of silicon scale, traditional organic phosphonates polycarboxylate scale inhibitors have poor scale inhibition effects. The physical technology for preventing silicon scale mainly applies the ultrasonic electromagnetic fields formed by physical equipment to act on the crystal nucleus of the scale, so that the crystalline silicon scale can be dispersed in water exist in the form of a colloid. Due to the fact that physical anti scaling is a non-contact method that requires equipment to achieve, its installation position is crucial, with certain limitations, as well as difficulties in amplification noise impact.