高校化学工程学报Issue(6)：1094-1099,6.DOI:10.3969/j.issn.1003-9015.2013.06.028
新型三次采油用环烷基磺酸盐的制备与评价
Synthesis and Evaluation of Naphthenic Sulphonate Used for Enhancing Oil Recovery
摘要
Abstract
A novel naphthenic sulphonate was prepared in laboratory by sulphonation of the naphthenic lubricating oil with fuming sulfuric acid. The optimum preparation reaction temperature found is 70℃, the optimum volume ratio of fuming sulfuric acid to naphthenic lubricating oil is 1:4, the optimum reaction time is 10 h. The structure of the product was characterized by infrared spectra, 1H-NMR and elemental analysis. The results indicate that the product is saturated naphthenic sulphonate. The evaluation of the interfacial activity properties of the product shows that, when the naphthenic sulphonate was used in several blocks in Shengli oilfield without alkali and other additives, the interfacial tension between crude oil and water could be reduce to a ultra-low value, such as low as 10-3 mN×m-1, and the lowest value of the interfacial tension can be reduced to 6×10-4 mN×m-1. The naphthenic sulphonate possesses good salt-resisting capacity, even when the concentration of NaCl is in the range of 2.5×103 mg×L-1 to 17×103 mg×L-1, or the concentration of Ca2+and Mg2+is below 500 mg×L-1, it still can reduce the oil-water interfacial tension to 10-3 mN×m-1.关键词
环烷基磺酸盐/磺化反应/三次采油/界面活性Key words
naphthenic sulphonate/sulphonation/enhance d oil recovery/interfacial activity分类
能源科技引用本文复制引用
郑学芳,廉琪,朱红,王芳辉,贾丹丹,王东军..新型三次采油用环烷基磺酸盐的制备与评价[J].高校化学工程学报,2013,(6):1094-1099,6.基金项目
河北省教育厅项目(Q2012056)；秦皇岛市科技项目(2012021A127)。 （Q2012056）
