深水气田降压开采技术的研究和应用
Research on pressure step-down production technology and its application in deep water gas field
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- 引用格式:
-
杨勇,郭伟,屈涛,杨叶,何源,杜洋洋,李春辉.深水气田降压开采技术的研究和应用[J].天然气与石油,2022,40(2):46-51.doi:10.3969/j.issn.1006-5539.2022.02.008
YANG Yong, GUO Wei, QU Tao, YANG Ye, HE Yuan, DU Yangyang, LI Chunhui.Research on pressure step-down production technology and its application in deep water gas field[J].Natural Gas and Oil,2022,40(2):46-51.doi:10.3969/j.issn.1006-5539.2022.02.008
- DOI:
- 10.3969/j.issn.1006-5539.2022.02.008
- 作者:
- 杨勇 郭伟 屈涛 杨叶 何源 杜洋洋 李春辉
YANG Yong, GUO Wei, QU Tao, YANG Ye, HE Yuan, DU Yangyang, LI Chunhui
- 作者单位:
- 中海石油(中国)有限公司深圳分公司, 广东 深圳 518054
CNOOC China Ltd., Shenzhen Branch, Shenzhen, Guangdong, 518054, China
- 关键词:
- 深水气田;降压;释放产能;压缩机;操作策略
Deep water gas field; Pressure step-down; Release production capacity; Compressor; Operation strategy
- 摘要:
- 为了充分认识和准确把握降压开采技术在深水气田开采中的应用,以具有代表性的南海东部海域深水气田A作为研究对象,通过对深水气田降压开采的意义及难点进行分析研究,结合深水气田的初始开采方案,研究设计了深水气田降压开采技术。深水气田降压开采技术核心点及关键技术:1)由2阶段改多阶段精细化气藏降压,深度挖潜剩余能量;2)基于模拟软件分析优选策略,保障深水海管流动性安全;3)创新设备选型、改造,强化工艺流程稳定;4)创新调试流程及降压程序,实现不停产调试和降压开采。深水气田A成功实施降压开采技术后,单井产能释放量达到80×104 m3·d-1,每年减少能源消费量2.34 t标准煤。深水气田降压开采技术对降压稳产的进一步研究有重要借鉴作用。
In order to fully understand and accurately grasp the application of pressure step-down production technology in the natural gas production of deep water gas fields, the typical deep water gas field A in the eastern South China Sea is taken as the research object. By analyzing and researching the significance and difficulties of pressure step-down production of deep water gas fields, combined with the initial production plan of deep water gas fields, the pressure step-down production technology of natural gas in deep water gas fields was studied and designed. The core points and key technologies of pressure step-down production technology are:1)changing 2 to N-stage refined gas reservoir to depressurize and tap the potential residual energy;2)strategy analysis and optimization based on simulation software to ensure the flow assurance of deep water subsea pipeline;3)make innovation in equipment selection and transformation, and enhance the stability of process flow;4)make innovation in the commissioning process and pressure step-down procedure to achieve non-stop commissioning and pressure step-down. After the successful implementation of pressure step-down production technology in the deep water gas field, the single well productivity reached 800×103 m3 per day, reducing the total energy consumption by 2.34 t standard coal every year. This research provides important reference for the further study of pressure step-down and stable production of deep water gas fields
