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| 抗温环保型降滤失剂改性玉米淀粉的合成与评价 |
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迟姚玲1,郑力会2,冀德坤1,易玉峰1,范成伟3,丁福臣1,赖作龙1
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(1.北京石油化工学院 化学工程学院,北京 102617;2.中国石油大学 石油工程教育部重点实验室,北京102249;3.乌鲁木齐石油化工总厂 西峰工贸总公司,新疆 乌鲁木齐 830019)
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| 摘要: |
| 采用接枝共聚方法在淀粉链状结构上引入丙烯酰胺和丙磺酸单体,优化其反应工艺,得到改性淀粉;用热重法分析产物热稳定性能;通过淡水实验、抗高温实验、抗盐实验和抗钙实验评价改性淀粉的降滤失性能。结果表明:改性淀粉在280 ℃时开始分解;当改性淀粉添加量为1.3％时降滤失性能良好;改性淀粉是一种热稳定性较好、抗盐抗钙能力较强、同时兼有无毒环保、成本低等优点的降滤失剂原料。 |
| 关键词: 钻井液 抗温 降滤失剂 改性淀粉 |
| DOI：10.3969/j.issn.1673-5005.2011.01.030 |
| 分类号::TE 357.46 |
| 文献标识码:A |
| 基金项目:国家自然科学基金项目(200906005);国家科技重大专项课题(2008ZX05024-04-005,8ZX05036-003,8ZX05062) |
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| Preparation and evaluation of fluid loss reducer of heatresistant and environment friendly modified starch |
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CHI Yaoling1, ZHENG Lihui2, JI Dekun1, YI Yufeng1, FAN Chengwei3, DING Fuchen1, LAI Zuolong1
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(1.College of Chemical Engineering in Beijing Institute of Petrochemical Technology, Beijing 102617, China;2.MOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing 102249, China;3.Xifeng Industrial and Commerical Company, Urumqi Petrochemical Complex Factory, Urumqi 830019, China)
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| Abstract: |
| The AM monomer and AMPS monomer were introduced to the starch 's chain structure by graft copolymerization. The modified starch was obtained after drying. The product 's heat stability was investigated by TGDTA. On the basis of evaluation criterion for the fluid loss reducer, the filtration loss property of modified starch was evaluated by the freshwater experiment, heat resistant experiment, salt resistant experiment and calcium resistant experiment. The results show that the fluid loss reducer decomposes at 280 ℃. The fluid loss reducer has good filtration property when its weight percent is 1.3％. The fluid loss reducer has heat stability, salt resistant and calcium resistant capability. The modified starch is one of environment friendly drilling fluid additives. |
| Key words: drilling fluid heat resistant fluid loss reducer modified starch |
