同井采注技术研究现状及展望
Research Status and Prospects of Downhole Oil/Water Separation
DOI: 10.12677/ME.2020.83032, PDF,    国家科技经费支持
作者: 柯文奇*, 李建平, 杨立红：中国石油化工股份有限公司石油勘探开发研究院，北京；吴嘉仪：中国石油大学(北京)，北京
关键词: 井下分离；旋流分离；重力分离；Downhole Oil/Water Separation； Swirl Separation； Gravity Separation
摘要: 油田开发进入高含水期，开发成本、地面投资、水处理投入及环境污染等压力日趋突出，同井注采工艺利用油井举升系统与井下油水分离技术相结合，实现井下油水分离及回注，缓解地面处理压力，降低处理设备投入和操作费用。同井注采工艺经过多年发展，围绕不同需求形成电潜泵同井注采工艺、螺杆泵同井注采工艺、有杆泵同井注采工艺及组合同井注采工艺等工艺技术系列。根据实际应用资料，分析了井下油水分离技术面临的技术难点及其应用过程中存在注入、封隔、堵塞、腐蚀与结垢等问题。与此同时，同井注采工艺仍在不断的改进与创新，为后期的应用与发展提供借鉴与参考。
Abstract: Ddevelopment difficulty, ground investments, water treatment costs and environmental pollution risk are climbing in the high water period of oil field development. Combining the oil well lifting system with the downhole oil/water separation technology, the water is separated and re-injected in the downhole, which can help to ease the ground handling needs and reduce the processing equipment investment and operating costs. To meet the different needs of downhole injection and production process, electric submersible pump, screw pump, rod pump and the combination of ESP & PCP with downhole oil/water separation technology are developed. According to the practical application analysis, the technical difficulties and the problems are including injection, sealing, clogging, corrosion and scaling. At the same time, the downhole oil/water separation technology is still further enhanced.
文章引用：柯文奇, 李建平, 吴嘉仪, 杨立红. 同井采注技术研究现状及展望[J]. 矿山工程, 2020, 8(3): 245-256. https://doi.org/10.12677/ME.2020.83032

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