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注水井洗井是注水井日常管理中的一种常规手段,是注水井保持地层吸水能力有效而经济的方法,是提高注水效果、减少油层污染的重要措施之一。注水井洗井对维护井筒清洁、清除注水层渗滤面污染,减缓吸水能力的下降起着重要作用。随着油田进入开发后期,地层状况恶化,使注水井洗井工作变的愈发重要。如何正确、合理、有效发挥注水井洗井的作用,是油田在后期注水开发生产中经常面对的问题。
Water injection well washing is a routine measure in the daily management of injection wells. It is an effective and economical method for water injection wells to maintain the water absorption capacity of the formation, and is one of the important measures to improve the water injection effect and reduce oil pollution. Water injection well washing well for maintaining the wellbore clean, clear water layer percolation surface pollution, reduce water absorption capacity plays an important role. As the field moves into the later stages of development, the stratigraphic conditions have deteriorated, making it more and more important that water injection wells work well flushing. How to correctly, reasonably and effectively play the role of water injection well washing wells is often encountered in the development and production of oilfields in the latter part of the field.