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Authors: G. L. Liu 1 ; X. N. Li 1 ; F. S. Zhang 1 ; Y. Z. Qu 2 ; N. Qi 3 ; Y. J. Lu 1 and H. M. Su 1

Affiliations: 1 Research Institute of Petroleum Exploration & Development, PetroChina, Key Laboratory of Oilfield Chemistry and CNPC, China ; 2 CNPC Drilling Research Institute, China ; 3 China University of Petroleum, China

Keyword(s): strong-base ASP flooding sewage; suspended solids; Zeta potential;polymer; filter membrane

Abstract: The oilfield sewage from chemical flooding was analysed in this paper. It showed that the sewage contained high concentration of suspended solids, organic acrylamide polymer, multivalent metal ions. IR and Electron microscope measurement showed the value of suspended solids measured by membrane filtering method was much higher than the real value due to polymer absorption and plugging on membrane. The suspended solids in filtered sewage increased due to formation of fine inorganic scale and colloidal particles under certain conditions. The zeta potential showed the sewage was much negatively charged. At pH value 3~4, the zeta potential of sewage shifted to -5.0mv quickly and much precipitate of polymer gel appeared in sewage. Above all, the negatively charged polymer and high viscosity of sewage played an important role in dispersing and stabilizing suspended solids.

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Paper citation in several formats:
Liu, G.; Li, X.; Zhang, F.; Qu, Y.; Qi, N.; Lu, Y. and Su, H. (2018). Characterization and Source Analysis of Suspended Solids in Chemical Flooding Sewage. In Proceedings of the International Workshop on Materials, Chemistry and Engineering - IWMCE; ISBN 978-989-758-346-9, SciTePress, pages 77-82. DOI: 10.5220/0007434800770082

@conference{iwmce18,
author={G. L. Liu. and X. N. Li. and F. S. Zhang. and Y. Z. Qu. and N. Qi. and Y. J. Lu. and H. M. Su.},
title={Characterization and Source Analysis of Suspended Solids in Chemical Flooding Sewage},
booktitle={Proceedings of the International Workshop on Materials, Chemistry and Engineering - IWMCE},
year={2018},
pages={77-82},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007434800770082},
isbn={978-989-758-346-9},
}

TY - CONF

JO - Proceedings of the International Workshop on Materials, Chemistry and Engineering - IWMCE
TI - Characterization and Source Analysis of Suspended Solids in Chemical Flooding Sewage
SN - 978-989-758-346-9
AU - Liu, G.
AU - Li, X.
AU - Zhang, F.
AU - Qu, Y.
AU - Qi, N.
AU - Lu, Y.
AU - Su, H.
PY - 2018
SP - 77
EP - 82
DO - 10.5220/0007434800770082
PB - SciTePress

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