2.Through the analysis,the antiseptic technique of urea prilling towers mainly adopts glass flaks and cationic chloroprene latexcement mortar lining technology. Finally,some safety suggestions and construction measures of antiseptic techniques are provided.
3.A novel deep well cement slurry named DHL styrene butadiene latex high temperature channeling cement slurry has been developed to adapt the formation characteristics of Daqing oilfield such as deep buried reservoir, high bottom hole temperature and multitudinous target beds.