福山油田朝阳区块CO₂驱注采配套工艺技术的研究与应用

Research and Application of Process Technology of CO2 Flooding Injection and Production Supporting Facilities in Chaoyang Block of Fushan Oilfield

福山油田朝阳区块采取CO2驱开发方式,重点对高气液比举升配套工艺技术、耐CO2井下气密封工具研发和气窜层封堵技术开展调研、研究,实现了井下CO2腐蚀环境中的高效气液分离、注入井工艺管柱安全长效,配合封堵工艺,解决CCUS工程方面的注采问题。本文通过朝阳驱块二氧化碳驱实践经验,逐步完善高气液比举升与配套工艺体系,为福山油田CCUS增产稳产提供技术支撑,推动南方公司全力打造“绿色低碳”发展企业,助力中石油绿色低碳发展、国家“碳中和”目标早日实现。

The Chaoyang block of Fushan Oilfield adopts the CO2 flooding development method, focusing on the research and development of high gas-liquid ratio lifting supporting technology, CO2 resistant downhole gas sealing tool development, and gas channeling layer sealing technology. This has achieved efficient gas-liquid separation in underground CO2 corrosive environments, safe and long-lasting injection well process pipe strings, and combined with sealing technology to solve in-jection and production problems in CCUS engineering. This article gradually improves the high gas-liquid ratio lifting and supporting process system based on the practical experience of carbon dioxide flooding in Chaoyang Block, providing technical support for the increase and stable produc-tion of CCUS in Fushan Oilfield, promoting Southern Company to fully build a “green and low-carbon” development enterprise, and assisting PetroChina in achieving green and low-carbon development and the national “carbon neutrality” goal as soon as possible.