Research on Tempering-Centrifugation Treatment Technology for Oily Sludge of High Liquid Content
The simulation experiment of indoor tempering and centrifugation treatment and the application of field equipment disposal were carried out for the reduction of high liquid oily sludge in a treatment station of Tahe Oilfield.Demulsifier,polyaluminum chloride(PAC)and polyacrylamide(PAM)were selected as tempering agents in the experiment.The tempering time and agent dosages for reduction treatment of the oily sludge were obtained by correlation orthogonal experiments.The experimental results showed that when the oily sludge temperature was 65～85℃,and the tempering time was 12 min,and the addition amount of demulsifier solution with 0.1%concentration was 0.2 mL,and the addition amount of PAC solution with 0.1%concentration was 0.5 mL,and the addition amount of cationic PAM solution with 0.1%concentration was 0.2 mL,the solid phase liquid content of oily sludge after treatment was less than or equal to 45%,and the oil content of the separated liquid phase was greater than or equal to 20%.The reduction treatment of oily sludge and the recovery of crude oil were realized.This study provided effective support for the field application of tempering and centrifugation treatment technology.
oily sludgetempering and centrifugationtempering timeagentliquid content
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