添加Tm_2O_3对Al_2O_3基压裂支撑剂耐酸性能的影响
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摘要
采用常压烧结技术,在CaO-MgO-Al_2O_3-SiO_2体系中添加稀土氧化铥来制备氧化铝基石油压裂支撑剂。通过XRD和SEM等表征手段,研究Tm_2O_3对陶粒支撑剂的烧结温度、视密度、酸溶解度、物相组成和显微结构的影响,并探究其影响机理。实验结果表明:微量添加稀土Tm_2O_3就能提高压裂支撑剂的耐酸性,当Tm_2O_3添加量为1%(质量分数)时耐酸性能恶化,随着添加量的增加,生成耐酸性能优异的Al5Tm3O12,耐酸性能提高,当Tm_2O_3添加量为20%(质量分数)时,最低酸溶解度低至0.124%,降低幅度达76.65%。
The ceramic proppant of Tm_2O_3 doped was prepared by pressureless sintering in the CaO-MgOAl_2O_3-SiO_2 system.The effect of Tm_2O_3 content on the sintering temperature,apparent density,acid solubility,phase composition and microstructure was studied.The results show that trace amounts of Tm_2O_3 can improve the acid resistance of fracturing proppant.When the additive amount of Tm_2O_3 is 1%,the fracturing proppant′s acid resistance is deteriorating.When the additive amount of Tm_2O_3 is above 1%,the acid solubility of fracturing proppant decreases gradually with the increase of additive amount of Tm_2O_3 because the acid resistance of the generated Al_5Tm_3O_(12) is excellent.When the additive amount of Tm_2O_3 is 20%,the lowest acid solubility goes down to 0.124%,which is reduced by 76.65%.
The ceramic proppant of Tm_2O_3 doped was prepared by pressureless sintering in the CaO-MgOAl_2O_3-SiO_2 system.The effect of Tm_2O_3 content on the sintering temperature,apparent density,acid solubility,phase composition and microstructure was studied.The results show that trace amounts of Tm_2O_3 can improve the acid resistance of fracturing proppant.When the additive amount of Tm_2O_3 is 1%,the fracturing proppant′s acid resistance is deteriorating.When the additive amount of Tm_2O_3 is above 1%,the acid solubility of fracturing proppant decreases gradually with the increase of additive amount of Tm_2O_3 because the acid resistance of the generated Al_5Tm_3O_(12) is excellent.When the additive amount of Tm_2O_3 is 20%,the lowest acid solubility goes down to 0.124%,which is reduced by 76.65%.
引文
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2 田小让,吴伯麟.一种耐酸陶粒压裂支撑剂的制备方法及耐酸机理研究[J].材料导报,2008,22(专辑Ⅺ):215
3 周少鹏,田玉明,陈战考,等.陶粒压裂支撑剂研究现状及新进展[J].硅酸盐通报,2013,32(6):1097
4 刘爱平,田玉明,赵鹏飞,等.陶粒压裂支撑剂发展现状及未来展望[J].中国陶瓷,2015,51(6):1
5 赵艳荣,吴伯麟,吴婷婷.高铝陶粒支撑剂的研制[J].中国陶瓷,2010,46(2):46
6 赵艳荣,吴伯麟,李文杰.不同外加剂对陶粒支撑剂耐酸性的影响[J].中国陶瓷,2013,49(7):54
7 崔任渠.石油压裂用支撑剂的研究[D].武汉:武汉科技大学,2013
8 崔冰峡,刘军,陈耀斌,等.陶粒压裂支撑剂发展现状及未来展望[J].硅酸盐通报,2016,35(2):458
9 Wu T T,Zhou J,Wu B L.Effect of TiO2content on the acid resistance of a ceramic proppant[J].Corros Sci,2015,98:716
10 余利军,孙亚光,余丽秀.油气压裂支撑剂应用进展及发展趋势[J].中国非金属矿工业导刊,2014(3):14
11 Zhao S A,Wu B L,Qin S,et al.Effect of barium aluminates on acid resistance of fracturing proppants[J].Adv Mater Res,2011,383-390(4):3291
12 Qin S,Wu B L.Effect of self-glazing on reducing the radioactivity levels of red mud based ceramic materials[J].J Hazard Mater,2011,198:269
13 Tian X R,Wu B L,Li J J.The exploration of making acidproof fracturing proppants using red mud[J].J Hazard Mater,2008,160(2):589
14姚义俊,丘泰,焦宝祥,等.稀土氧化物对氧化铝瓷性能的影响[J].真空电子技术,2004(4):28