西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (3): 179-186.DOI: 10.11885/j.issn.1674-5086.2023.07.28.01

• 石油机械与油田化学 • 上一篇    

海上水平井蒸汽驱泡沫堵调技术研究与应用

唐晓旭1,2,3, 王成1,2,3, 韩晓冬1,2,3, 苑玉静1,2,3, 任磊1,2,3   

  1. 1. 海洋油气高效开发全国重点实验室, 北京 朝阳 102209;
    2. 中国海洋石油集团有限公司海上稠油热采重点实验室, 天津 滨海新区 300459;
    3. 中海石油(中国)有限公司天津分公司, 天津 滨海新区 300459
  • 收稿日期:2023-07-28 发布日期:2025-07-11
  • 通讯作者: 王成,E-mail: sygc156@163.com
  • 作者简介:唐晓旭,1971年生,男,汉族,四川南充人,高级工程师,主要从事油田开发开采技术、提高采收率技术的研究与实践。E-mail:tangxx@cnooc.com.cn
    王成,1990年生,男,汉族,陕西咸阳人,工程师,博士,主要从事稠油热采相关技术研究与实践。E-mail:sygc156@163.com
    韩晓冬,1989年生,男,汉族,山东安丘人,高级工程师,博士,主要从事稠油热采相关技术研究与实践。E-mail:hanxiaodongupc@126.com
    苑玉静,1988年生,女,汉族,河北沧州人,高级工程师,硕士,主要从事稠油热采、化学驱、调剖调驱等提高采收率相关技术研究与实践。E-mail:335316299@qq.com
    任磊,1997年生,男,汉族,湖南长沙人,工程师,硕士,主要从事稠油热采相关技术研究与实践。E-mail:renlei5@cnooc.com.cn

Research and Application of Foam Plugging in Horizontal Wells Steam Flooding of Offshore Oilfield

TANG Xiaoxu1,2,3, WANG Cheng1,2,3, HAN Xiaodong1,2,3, YUAN Yujing1,2,3, REN Lei1,2,3   

  1. 1. State Key Laboratory of Offshore Oil and Gas Exploitation, Chaoyang, Beijing 102209, China;
    2. Key Laboratory of Offshore Heavy Oil Thermal Recovery, CNOOC, Binhai New Area, Tianjin 300459, China;
    3. China Limited, Tianjin Branch, CNOOC, Binhai New Area, Tianjin 300459, China
  • Received:2023-07-28 Published:2025-07-11

摘要: 泡沫堵调能够改善蒸汽驱吸汽剖面,扩大蒸汽波及范围,是改善蒸汽驱开发效果的有效措施。针对渤海N油田蒸汽驱过程中面临的海上环境复杂、作业施工风险大和大井距水平井堵调难度大等特点,开展海上大井距水平井蒸汽驱泡沫堵调研究。通过室内实验,评价了耐高温起泡剂的关键性能指标。RFA—1耐高温起泡剂耐温可达350 ℃,高温环境下阻力因子可达44,具有良好的堵调性能。通过现场实施,验证了泡沫堵调改善蒸汽驱开发效果的有效性,泡沫段塞堵调能够有效控水,改善吸汽剖面,措施过程中,窜流井含水率明显降低,由81.7%最低降至47.0%,阶段增油约800 t。

关键词: 海上稠油, 蒸汽驱, 水平井, 泡沫堵调, 矿场实施

Abstract: Foam plugging can improve steam profile and expand steam sweeping area, which is an effective measure to improve the development effect of steam flooding. In view of the characteristics of steam flooding of N Oilfield in Bohai, such as complex offshore environment, high operation and construction risk, and difficulty in plugging for horizontal wells with large spacing, the research on foam plugging for steam flooding in offshore horizontal wells with large well spacing was carried out. The key performance indexes of high temperature resistant foaming agent were evaluated through laboratory experiments. The RFA-1 foaming agent can withstand temperature up to 350 ℃, and the resistance factor can reach 44 in high temperature environment, which has good plugging and adjusting performance. The field tests verified the effectiveness of foam plugging to improve the development effect of steam flooding. Foam plugging can effectively control water and improve steam profile. In application, the water cut of the cross-flow well decreased significantly from 81.7% to 47.0%, and the oil was increased by about 800 t.

Key words: offshore heavy oil, steam flooding, horizontal well, foam plugging, field test

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