عنوان: Barium/Strontium Sulfate Scale Cleaner DS-8 and Its Use for Scale Removing from Oil-Gathering Pipeline at Youshashan Oil Fields
قیمت: 1,600 تومان
A liquid scale dissolving agent of density≥1.2 g/cm 3 and pH=10-14 miscible with water and composed of a BaSO 4 dissolving composition with additives is prepared and its performance properties are investigated. With increasing the concentration of the DS 8 aqueous slution used, the total dissolved BaSO 4 amount increases but the BaSO 4 amount dissolved by unit volume of DS 8 decreases and the optimum concentration of working solution is shown to be of 10-20%. The optimum working temperature is 40℃. The dissolving power of DS 6 for hardly acid soluble sulfates is arranged in order: CaSO 4SrSO 4BaSO 4. The solubility of BaSO 4 in 10% DS 8 solution is 62.4 g/L. DS 8 is non corrosive and the corrosion rate of A3 steel test specimen in 20% DS 8 solution at 45℃ in 72 hrs is as low as 0.004 g/m 2·h .