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Study on Reinjection Treatment in Block Guan 5 of Zhejiang Oilfieid
Author(s): 
Pages: 22-23
Year: Issue:  2
Journal: Environmental Protection of Oil & Gas Fields

Keyword:  浙江油田管5井区块产出水注水膜技术超滤;
Abstract: 浙江油田管5井区块属于低渗透区块,油田开发过程中产出水悬浮物(SS)、硫酸盐还原菌(SRB)、腐生菌(TGB)等指标严重超标.未经处理的油田污水如果直接注入到地层中,注入水中的悬浮颗粒会伤害油层的渗透率,导致注水井的吸水能力降低和油井产能下降,从而影响开发效果.因而,对其油田产出水采用内压式中空纤维超滤工艺处理.文章介绍了注水处理工艺及流程,结果表明:超滤工艺出水水质:SS为0.25 mg/L,SRB菌数为0,铁细菌数为17个/mL,腐生菌数0,相关水质指标符合<碎屑岩油藏注水水质推荐指标及分析方法>(SY/T 5329-94)的要求.
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