风城油田超稠油污水旋流分离技术

Hydrocyclone Separation Technology for Super Heavy Oily Wastewater in Fengcheng Oilfield,Junggar Basin

风城超稠油具有密度高、黏度高、胶质和沥青质含量高,采出液泥砂含量高,以及存在多重乳液形态等特点,这些特点使得采出液油水分离难度大,分离出的污水含油量高,污水处理药剂用量大,系统运行效率低,处理成本高。旋流分离是一种实现高温密闭处理,提高分离效率、污油回掺处理效果的经济、高效处理技术。通过风城超稠油污水旋流分离技术的研究与应用,形成了超稠油污水旋流除油-化学反应处理技术,补充完善了新疆油田污水离子调整旋流反应法处理技术,为超稠油污水处理探索了新途径。

The super heavy oil in Fengcheng oilfield is characterized by high density,high viscosity,high resin-asphalt content,high mudsand content in produced fluid and multiple emulsion forms,which result in difficult oil-water separation in this oilfield by the fact of high oil bearing content in the separated wastewater,high dosage for sewage treatment,low system operation efficiency and high treatment cost.The hydrocyclone separation is a economical and efficient technology for realizing high-temperature and sealed treatment,improving separation and waste oil back mixing treatment effect.This paper studied the suitable hydrocyclone separation technology for super heavy oily wastewater from Fengcheng oiffield in detail,forming a technology of swirl oil removal＋chemical reaction for this super heavy oily wastewater treatment,which supplements or perfects the technology of ion swirl reaction for oily wastewater treatment in Xinjiang Oilfield as a new way.