TY - GEN
T1 - The research on characteristics of physical sedimentation and oil-water separation of high calcium-type ASP produced water
AU - Li, Chun Ying
AU - Wei, Li
AU - Chen, Zhong Xi
AU - Yu, Gang
AU - Yang, Jing Jie
N1 - Publisher Copyright:
© 2015 Taylor & Francis Group, London.
PY - 2015
Y1 - 2015
N2 - ASP-flooding produced water contains polymers, surfactant, calcium carbonate and some other oil-displacing agents, which make the produced water complex and the oil-water stability increase dramatically, causing the difficult oil-water separation. This study has carried on the comparative study of the sedimentation characteristic of ASP-flooding produced water, which was examined in different pH conditions or in different gas flotation conditions. It showed that the adding of an oil-displacing agent would cause serious emulsification, which could make coalescence and sedimentation bad of oil droplet and SS. The adding of HCl and NaOH could promote oil-water separation. Observed from SS, the SS decreased with the increase of pH, reducing from 282.32 mg/L to 78.53 mg/L, the oil content removal rate was 78.41%. The SS decreased following with the change of pH, 282.32 mg/L rising to 758.23 mg/L, then down to 121.42 mg/L, the oil content removal rate was 53.94%. Observed from residual oil content, the change of pH respectively made the oil content change to 27.52 mg/L and 58.74 mg/L. The oil removal efficiency of flotation was not very good without agents, the removal rate being only 26%, and the removal efficiency decreased with the decrease of raw oil content, which changed from 26% to 8.8%.
AB - ASP-flooding produced water contains polymers, surfactant, calcium carbonate and some other oil-displacing agents, which make the produced water complex and the oil-water stability increase dramatically, causing the difficult oil-water separation. This study has carried on the comparative study of the sedimentation characteristic of ASP-flooding produced water, which was examined in different pH conditions or in different gas flotation conditions. It showed that the adding of an oil-displacing agent would cause serious emulsification, which could make coalescence and sedimentation bad of oil droplet and SS. The adding of HCl and NaOH could promote oil-water separation. Observed from SS, the SS decreased with the increase of pH, reducing from 282.32 mg/L to 78.53 mg/L, the oil content removal rate was 78.41%. The SS decreased following with the change of pH, 282.32 mg/L rising to 758.23 mg/L, then down to 121.42 mg/L, the oil content removal rate was 53.94%. Observed from residual oil content, the change of pH respectively made the oil content change to 27.52 mg/L and 58.74 mg/L. The oil removal efficiency of flotation was not very good without agents, the removal rate being only 26%, and the removal efficiency decreased with the decrease of raw oil content, which changed from 26% to 8.8%.
UR - https://www.scopus.com/pages/publications/84973580303
M3 - 会议稿件
AN - SCOPUS:84973580303
SN - 9781138029330
T3 - Advances in Energy Science and Equipment Engineering - Proceedings of International Conference on Energy Equipment Science and Engineering, ICEESE 2015
SP - 1759
EP - 1762
BT - Advances in Energy Science and Equipment Engineering - Proceedings of International Conference on Energy Equipment Science and Engineering, ICEESE 2015
A2 - Patty, Aragona
A2 - Chen, Shiming
A2 - Zhou, Shiquan
PB - CRC Press/Balkema
T2 - International Conference on Energy Equipment Science and Engineering, ICEESE 2015
Y2 - 30 May 2015 through 31 May 2015
ER -