Barium strontium calcium scale remover and preparation method thereof

The invention provides a barium strontium calcium scale remover. The barium strontium calcium scale remover is prepared from, by weight, 20%-35% of a metal chelator, 10%-20% of a solubilizer, 0.5%-5% of a dispersing agent, 5%-15% of potassium hydroxide and 40%-60% of deionized water. Compared with the prior art, the barium strontium calcium scale remover has the good performance, can effectively remove organic composite scale such as barium sulfate, strontium sulfate and calcium sulfate, has the advantages of being high in scale removal efficiency, harmless to the natural environment, safe in use, non-corrosive to equipment and the like and has an important practical significance for increasing the oil and gas recovery rate.