中国石油大学学报（自然科学版）2017，Vol.41Issue(1)：169-175,7.DOI:10.3969/j.issn.1673-5005.2017.01.023
聚环氧琥珀酸对油田污水中硫酸锶/钡垢的阻垢性能及阻垢机制研究
Research on mechanism and scale inhibition performance of PESA on SrSO4/BaSO4 in oilfield sewage
摘要
Abstract
The self-made polyepoxysuccinic acids (PESA) were prepared and the scale inhibition effect of the relative molecular weight on barium sulfate and strontium sulfate in the oilfield sewage were investigated.And the scale inhibition performance between PESA and traditional scale inhibitor was compared.The results show that the molecular weight of PESA has an obvious influence on the scale inhibition.PESA with different molecular weights and different concentrations are selected in terms of different concentrations of scale-forming ions and different kinds of scales.It is also found that PESA is an efficient scale inhibitor for strontium/barium sulfate.The relative molecular weight of 500-1000 and 2 000 is feasible to oilfield sewage containing 500 mg/L and 1 000 mg/L Sr2+ respectively.The scale inhibition rate can be up to 95％ with 3-8 mg/L PESA.The scale inhibition performance of PESA is better than that of the traditional scale inhibitor for the oilfield.Moreover,the synergistic effect of PESA and PAA is found.Compared with the results obtained by PESA,the scale inhibition rate is improved for 20％,when PESA and PAA are at a ratio of 1 ∶ 3,and the total concentrationis 100 mg/L.The PESA inhibition mechanisms mainly are lattice distortion,charge dispersion and chelating solubilization.关键词
聚环氧琥珀酸/阻垢性能/相对分子质量/硫酸钡/硫酸锶/阻垢机制/油田污水Key words
polyepoxysuccinic acid/scale inhibition/relative molecular weight/barium sulfate/strontium sulfate/scale inhibition mechanism/oilfield sewage分类
能源科技引用本文复制引用
姜翠玉,苏明瑾,梁书源,夏洋峰,宋林花,张龙力,邹剑,王秋霞..聚环氧琥珀酸对油田污水中硫酸锶/钡垢的阻垢性能及阻垢机制研究[J].中国石油大学学报（自然科学版）,2017,41(1):169-175,7.基金项目
国家油气重大专项(2016ZX05058-003-006) （2016ZX05058-003-006）
