E3S Web Conf.
Volume 329, 20214th International Conference on Green Energy and Sustainable Development (GESD 2021)
|Number of page(s)||6|
|Published online||09 December 2021|
Preparation of organic polymer flocculant and its application in drilling fluid
1 Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, 710065, China
2 Xi’an Changqing Chemical Group Co. Ltd, Xi’an Shaanxi, 710068, China
3 Oil Production No.8, Changqing Oilfield Company, CNPC, Xi’an, 710000, China
4 Xi’an Key Laboratory of Tight oil (Shale oil) Development, Xi’an Shiyou University, Xi’an, 710065, China
A flocculant (DES0-0) was synthesized by epichlorohydrin and diethylamine, followed by adding crosslinking agent such as ethylenediamine, diethylenetriamine and triethylenetriamine to obtain the crosslinked polymer DES0-1, DES0-2, DES0-3. The flocculation effect of DES0-1, DES0-2, DES0-3 and PAM was studied by measuring the volume, transmittance and particle size of the clarified solution after flocculation. The results showed that the flocculation effect of triethylenetetramine crosslinked polymer (DES0-3) and PAM was better. Meanwhile, the flocculation effect was more optimistic in the strong alkali environment.
Key words: Epichlorohydrin / Diethylamine / Flocculant / Crosslinking agent
© The Authors, published by EDP Sciences, 2021
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