含油污水分段处理工艺技术探讨

Discussion on treatment process of oily waste water

董刚 刘涛 毛应涛 徐静 杨鑫

Dong Gang Liu Tao Mao Yingtao Xu Jing Yang Xin

中国石油化工股份有限公司 西北油田分公司 塔河油田 采油三厂,新疆 轮台841604

Tahe No. 3 Oil Production Plant, SINOPEC Northwest Oilfield Company, Luntai, Xingjiang 841604, China

随着塔河油田的开发，采出液性质随之发生改变，使油水乳化液的稳定性增加，造成污水中各种成分（固态、液态物质）均匀分散在污水中不易脱稳。在沉降罐中除油除杂同时处理已不能满足当前的生产需要，因此，采用“先除油，后除杂”的处理工艺，可最大限度地将污水中的乳化油去除，减轻了沉降段和过滤段的生产负荷。该处理工艺在塔河油田二号、三号污水处理站成功应用，为高乳化、油水密度差小的含油污水处理提供了可借鉴的经验。

With the development of the Tahe Oilfield, the property of produced fluid changes, which increases the stability of oil/ water emulsion. Consequently, different components, solid or fluid, evenly disperse in sewage, resulting in unstable dehydration. The treatment of simultaneous oil and impurity removal in settler cannot meet the requirement of present production. Therefore, by adopting the processing technology of " removing oil firstly, impurity secondly", oil emulsion in sewage can be utmost eliminated, easing production loading in the settling and filtering sections. This processing technology has gained a successful application in the No. 2 and No. 3 plants of water disposal of the Tahe Oilfield, offering reference for the treatment of oil-bearing sewage which is highly-emulsified and has low oil/ water density difference.

https://doi.org/10.11781/sysydz2013S1104