有机硅改性阳离子淀粉降滤失剂的合成及性能.pdf

第12期
化学世界
743
有机硅改性阳离子淀粉降濃失剂的合成及性能
赵鑫·,解金库,盛金春,管翔'2
(1.苏州科技大学生物与化学工程学院,江苏苏州215009;2.江苏省环境功能材料重点实验室,江苏苏州215009
3.河南油田钻井技术服务公司,河南南阳473000)
摘要:以六甲基二硅氩烷(以下称有机硅)、苯基有机胺、羧甲基淀粉等为原料,制备出一种油田钻
井液用抗165℃高温的有机硅改性阳离子淀粉睁漶失剂(OSCS)。FTIR结果显示,羧甲基淀粉
(CMS)结构上引入了苯基阳离子和有机硅基团。用差热分析考察其热稳定性,结果表明,OSCS的
热分解温度为262℃。用高温滚子加热炉和中压滤失量测定仪等钻井液专用仪器,考察了OSCS
的钻井液性能,结果显示,在170℃C高温滚动16h后较高温滚动前,API滤失量略有增加。因此所
合成的有机硅改性苯基阳离子淀粉降滅失剂OSCS在170℃高温下具有良好的耐热稳定性,适用
于井底温度低于170℃的深井钻探。
关键词:API滤失量山;降滤失剂;苯基阳离子淀粉;钻井液;有机硅
中图分类号;TQ314,2文献标志码:A
文章编号;:0367-6358(2012)12-0743-04
Synthesis and Properties of High Temperature-resisting Organsilicone
Modified Cationic Starch Filtrate Reducer
ZHAO Xin 2, XIE Jin-ku2, SHENG Jin-chun, GUAN Xiang
(1. Suzhou University of Science and Technology College of Chemistry and Biological Engineering, Jiangsu Suzhou 215009, China,
2. Jiangsu Key Laboratory of Environmental Functional Materials, Jiangsu Suzhou 215009, China
3. He'nan Oil Field Drilling Technology Service Company, He'nan Nanyang 473000, China)
Abstract: A novel organsilicone-modified cationic starch filtrate reducer(OSCS) was prepared from hexam
ethyldisilazane, phenyl amine, carboxylmethyl starch (CMS) etc. The filtrate reducer with high tempera
ture-resistant capability was used for drilling fluid. FT IR indicated that both the phenyl cation group and
organic silicon functional group were introduced into the structure of carboxymethyl starch (CMS). Fur
thermore, its thermal stability was characterized by TG-DTA, showing that the decomposition of OSCS
was 262C. The properties of OSCS drilling fluid were studied by portable roller oven and API filter press.
The results revealed that the amount of API filtration of OSCS increased slightly after aging 16 h at 170C
Therefore, the obtained OSCS product has excellent thermal stability and it can be used for deep well drill
ing below170℃C
Key words: API filtration J; filtrate reducer; phenyl cationic starch; drilling fluid; organsilicone
随着人们对石油资源的需求进一步加大,深井(>160℃)地层时会分解、降解或完全失效,因此钻
钻探成为各国关注重点,在深井钻探过程中,当钻进井液处理剂抗高温性能亟待解决。降滤失剂在钴井
至高温高压地层时,以往大多处理剂在高温液处理剂中用量最大,研发抗高温的降滤失剂成为
收日期:2012-01-19
作者简介:赵鑫(1964),男,河南南阳人。教授,主要从事有机功能材料方面的研究工作。E-mail:zhaoxinsz(@126.com