| 摘要: |
| 针对因油田污水中H2S的存在而导致配制的聚合物溶液粘度损失严重的问题开展研究,采用空气氧化法,通过优化水力停留时间和气水比,实现了对污水中H2S的彻底去除,并使处理后污水所配聚合物溶液(质量浓度为1700 mg/L)粘度由处理前的5 mPa·s提高到30mPa·s以上,且具有较高的热稳定性,达到了该二元复合驱对聚合物溶液粘度的设计要求。同时,全部采用脱硫处理后污水配制的聚合物溶液(污水配制母液、污水稀释)粘度也可以达到30mPa·s以上,因此可以采用污水配制聚合物母液,节约大量清水资源和生产费用。 |
| 关键词: 油田污水 脱硫 空气氧化 二元复合驱 聚合物粘度 |
| DOI： |
| 分类号:TE39 |
| 基金项目: |
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| Removing hydrogen sulfide of crude sewage and keeping viscosity of polymer solution prepared by crude sewage |
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Yuan Changzhong1, Pan Yongqiang1, Chen Jingjun2, Wang Jinliang, Du Chunan
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1.Research Institute of Oil Production Technology,Shengli Oilfield Branch,Sinopec,Dongying 257000,Shandong,China;2.Hekou Oil Plant,Shengli Oilfield Branch,Sinopec,Dongying 257200,Shandong,China
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| Abstract: |
| The problem of heavy loss of polymer solution viscosity because of hydrogen sulfide in crude sewage was studied.By optimizing hydraulic retention time and air/water ratio of air oxidation method,hydrogen sulfide was removed thoroughly and viscosity of polymer solution(the concentration was 1700 mg/L)was increased from 5 mPa·s to 30 mPa·s,and it had high thermal stability,which met the design requirement of polymer-surfactant displacement method.Meanwhile,the viscosity of polymer solution prepared by sewage after desulphurization processing(both mother liquid and dilution prepared by sewage)could reach more than 30 mPa·s,so a great quantity of freshwater and production cost could be saved. |
| Key words: crude sewage desulphurization air oxidation polymer-surfactant displacement polymer viscosity |
