摘要
结合胜利油田污水回注处理现状,介绍了近两年来胜利油田回注污水处理中应用的新工艺、新技术,主要有:针对腐蚀性污水实施了预氧化处理技术、水质改性处理技术,实施后水质达标,沿程水质稳定;针对含聚污水实施了氮气气浮除油技术和气浮与磁粉处理结合技术,取得较好除油效果,存在问题为产生污泥量大,排污困难;针对油田回注污水中低含油难以去除难题,实施了生物接触氧化处理技术并在樊41低渗透油田工业化应用,配套金属膜精细处理,使处理后水质达到A1级标准。针对油田污水回注处理中后续存在难题,提出了下步攻关方向。
The present situation of recycled produced water treatments in Shengli oil fields and the new technologies and techiques introduced in recent two years were described. The laters included：preoxidation and water quality adjustment by using limewater for corrosive waters to become qualified and less changeable flooding waters; nitrogen gas floatation and gas floatation plus coagulation/ floeculation promoted by magnetic powder for deoiling of polymer containing produced waters,which however resulted in large amounts of sludge diffieuh to be handled ;biological contact oxidation treatment with metallic membrane finefiltration for removing low content oil in recycled produced water,which in use at low permeability oil reservoir Fan-41 gave an exellent qualified flooding water of grade A1. To solve the problems presently existed, the guide for further developing oilfield produced water treatments for reservoir flooding was put forward.
出处
《油田化学》
CAS
CSCD
北大核心
2009年第2期218-221,226,共5页
Oilfield Chemistry
关键词
胜利油田
回注污水
污水处理
处理工艺技术
综述
Shengli oil fields, recycled produced water
wastewater treatments
treating technologies and techniques
review
