Temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with strong self-growth effect
AssigneesChina University of Petroleum (East China), CNOOC Energy Development Co., Ltd. Engineering Branch, Tianjin Branch of China National Offshore Oil Corporation Ltd.
InventorsGuang Zhao, Caili Dai, Dongfang Lyu, Jiaming Li, Kequan Meng, Ju Zheng, Yanxu Zhang, Weiyu Chen, Liguo Zhu, Yanhui Zhang
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Abstract
The present disclosure a temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with a strong self-growth effect.
Claims9
A temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with a strong self-growth effect comprising a temperature-resistant and salt-resistant functional polymer, a cross-linking agent, a chelating agent, and a modified nano-graphite inducer;
- the modified nano-graphite inducer comprises nano-graphite oxide particles and monofunctional polyether amine covalently grafted on the surfaces of the nano-graphite oxide particles through amido bonds, and the structural formula of the monofunctional polyether amine is as shown in formula (I):
- wherein R1 is one selected from C1-C5 alkyl groups;
- R2 is H or one of C1-C5 alkyl groups;
- and n is an integer from 10 to 60.
Dependencies are inferred from the claim text.