江汉油区沿程水质变化影响因素分析

Factors for Influencing Water Quality Change along Jianghan Oildom

江汉油区立足注水开发,大部分区块以污水或清污混注为主,注水水质成为影响注水开发效果的主要因素之一。由王一站、钟市站重点注水线路的沿程水质现场和室内的试验得知,注水水质指标主要是悬浮物、总铁含量不达标。从水处理工艺、注水管网和水中细菌3个方面展开了对沿程水质影响因素的研究,提出了相应的稳定水质的建议,为改善江汉油区注水系统水质提供了参考依据。

Because sewage injection or sewage--water injection is mainly adopted in the most blocks of Jianghan oil- dora, iniected water quality is one of major factors for influencing water--flooding results in the oildom. Analysis of the change of water quality indexes along key water--flooding layout in Wang--1 Station and Zhongshi Station con- eludes that the indexes are substandard in terms of suspended solids and total iron content. This paper has studied water quality impact factors in water treatment technology, water--flooding pipe network and water bacteria and presented corresponding suggestions that can be used as a reference for improving water quality of flood system in Jianghan oildom.