碳纳米点材料的分散行为与机理研究

王兰; 陶怀志; 姚诗余

doi:10.3969/j.issn.1001-5620.2019.05.003

碳纳米点材料的分散行为与机理研究

doi: 10.3969/j.issn.1001-5620.2019.05.003

王兰^1,2,
陶怀志^1,2,
姚诗余³

1. 油气田应用化学四川省重点实验室, 四川广汉 618300;
2. 中国石油集团川庆钻探钻采工程技术研究院, 四川广汉 618300;
3. 吉林大学物理学院, 长春 130012

基金项目:

中国石油天然气集团公司科技项目"页岩气钻完井及配套技术集成试验与应用"中的课题之一"页岩气水平井快速钻井综合配套技术研究与应用"（2018T-003-002）

详细信息

作者简介:
王兰,高级工程师,2007年毕业于西南石油大学应用化学专业,现在从事钻井液技术研究工作。电话(0838)5151118;E-mail:wanglan_ccde@cnpc.com.cn

中图分类号: TE254.4
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出版历程
- 收稿日期: 2019-06-15
- 刊出日期: 2019-10-30

Study on Dispersion Behavior and Mechanisms of Carbon Nanodot Materials

1. Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Guanghan, Sichuan 618300;
2. Drilling & Production Technology Research Institute of CCDC, Guanghan, Sichuan 618300;
3. College of Physics, Jilin University, Changchun, Jilin 130012

摘要

摘要: 在钻井过程中，页岩具有极低的渗透率和极小的孔喉尺寸，容易导致地层漏失和井壁不稳定等问题。近年来，纳米材料被广泛应用于制备钻井液纳米封堵剂以封堵页岩孔喉，阻止液相侵入地层，维持井壁稳定。以柠檬酸固体粉末、乙二胺为单体，采用水热合成法制备了一种新型的碳纳米点材料。利用多种分散手段对碳纳米点材料在水中的分散性进行优化，并深入研究其分散机理。实验结果表明，碳纳米点材料在碱性水介质中具有优良的分散性，采用简单的机械搅拌和超声就能使其在水介质中完全分散。同时，碳纳米点材料在基浆中仍具有良好的分散性。该研究为碳纳米点作为页岩气水基钻井液用纳米封堵剂提供了理论基础与实验依据。
- 碳纳米点 /
- 钻井液 /
- 分散性 /
- 页岩
Abstract: Shales encountered in drilling operation have very low permeability and very small pore throats which are easy to result in lost circulation and instability of wellbore. Nanometer materials have in recent years been widely used to make nanometer plugging agents which are able to plug the pore throats in shales and to prevent liquid phase from entering into the shales, thereby maintaining the stability of borehole wall. A new nanodot material has been developed with powdered citric acid and ethylene diamine through hydrothermal synthesis. Several ways of dispersion were used to optimize the dispersion of the nanodot material in water. The mechanisms of the dispersion of the nanodot material was studied. Laboratory experimental results showed that the nanodot material disperses very well in alkaline water, simple mechanical agitation and ultrasonic wave can make the nanodot material dispersed completely in water. In bentonite slurry the nanodot material also showed good dispersibility. This study has provided a theoretical and experimental base for the nanodot material to be used as plugging agent in shale gas drilling operation.
- Carbon nanodot /
- Drilling fluid /
- Dispersibility /
- Shale

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参考文献(15)

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