天津科技

天津科技 ›› 2025, Vol. 52 ›› Issue (02): 38-40.

• 应用技术 • 上一篇    下一篇

渤海Q油田水平井段压降影响因素分析与验证

高智梁1, 邢川衡1, 李权1, 周日1, 欧阳雨薇1, 周洪艳2   

  1. 1.中海石油（中国）有限公司秦皇岛32-6作业公司 天津 300450;
    2.中海油能源发展股份有限公司工程技术分公司 天津 300452
  • 收稿日期:2025-01-09 出版日期:2025-02-25 发布日期:2026-01-06

Analysis and verification of factors affecting pressure drop in horizontal well sections of Bohai Q Oilfield

GAO Zhiliang1, XING Chuanheng1, LI Quan1, ZHOU Ri1, OUYANG Yuwei1, ZHOU Hongyan2   

  1. 1. QHD32-6 Operating Commpany, CNOOC <China> Co., Ltd., Tianjin 300450, China;
    2. CNOOC Energy EnerTech-Drilling & Production Co., Tianjin 300452, China
  • Received:2025-01-09 Online:2025-02-25 Published:2026-01-06

摘要： 基于公式推导和单因素影响计算,明确水平井段内摩阻导致的水平井段压降影响因素,结合实际油藏特征参数,对渤海Q油田不同产液规模、不同含水阶段的水平井段压降变化建立分析图版,并将水平井段压降与本井生产压差的比值定义为C值,进而结合生产压差,对渤海Q油田单井措施潜力进行量化预测,在此基础上提出对13口井实施大泵提液。结果表明,增油达403 t/d,取得了较好的应用效果。

关键词: 水平井段压降, 生产压差, 量化预测, 影响因素

Abstract: Through theoretical formula derivation and single factor influence calculation,the influencing factors of pressure drop in the horizontal well section caused by frictional resistance are identified. Based on the actual reservoir characteristic parameters,an analysis chart is established for the variation of pressure drop in horizontal well sections with different liquid production scales and water cut stages in Bohai Q Oilfield. The ratio of the pressure drop in the horizontal section to the production pressure difference of this well is defined as the C value. Combined with the the production pressure difference,the potential of single well measures in Bohai Q Oilfield is quantitatively predicted. It is proposed that 13 wells implement large pumping for liquid extraction. After the operation,the oil production increases by 403 t/d,achieving good application results.

Key words: pressure drop in horizontal well section, production pressure difference, quantitative prediction, influencing factors

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