胜利油田长效扩张式分层注水技术

李永康, 张紫檀, 张卫卫, 王鹏, 刘晋伟, 郭慧

李永康, 张紫檀, 张卫卫, 王鹏, 刘晋伟, 郭慧. 胜利油田长效扩张式分层注水技术[J]. 石油钻探技术, 2020, 48(4): 100-105. DOI: 10.11911/syztjs.2020092
引用本文: 李永康, 张紫檀, 张卫卫, 王鹏, 刘晋伟, 郭慧. 胜利油田长效扩张式分层注水技术[J]. 石油钻探技术, 2020, 48(4): 100-105. DOI: 10.11911/syztjs.2020092
LI Yongkang, ZHANG Zitan, ZHANG Weiwei, WANG Peng, LIU Jinwei, GUO Hui. Long-Term Expandable Zonal Water Injection Technology in the Shengli Oilfield[J]. Petroleum Drilling Techniques, 2020, 48(4): 100-105. DOI: 10.11911/syztjs.2020092
Citation: LI Yongkang, ZHANG Zitan, ZHANG Weiwei, WANG Peng, LIU Jinwei, GUO Hui. Long-Term Expandable Zonal Water Injection Technology in the Shengli Oilfield[J]. Petroleum Drilling Techniques, 2020, 48(4): 100-105. DOI: 10.11911/syztjs.2020092

胜利油田长效扩张式分层注水技术

基金项目: 国家科技重大专项“精细分层注采技术”(编号:2016ZX05011-004)和中国石化重点推广项目“老油田精细注水技术集成配套及规模应用”(编号:P17056-10)联合资助
详细信息
    作者简介:

    李永康(1984—),男,河南林州人,2009年毕业于长江大学石油工程专业,2012年获长江大学油气田开发工程专业工学硕士学位,助理研究员,主要从事分层注水工艺和技术方面的研究工作。E-mail:liyongkang.slyt@sinopec.com

  • 中图分类号: TE357.6

Long-Term Expandable Zonal Water Injection Technology in the Shengli Oilfield

  • 摘要:

    针对任一级扩张式封隔器损坏或底球漏失导致检修更换扩张式分层注水管柱的问题,根据液压传动原理,研制了液缸扩张式封隔器,使封隔器内、外压力系统相对独立,以避免封隔器失效引起的检修更换分层注水管柱作业;根据现场实际情况,研制了组合式沉砂洗井阀和防漏装置,在保证正向密封的同时,降低底球漏失对分层注水管柱性能的影响。液缸扩张式封隔器与组合式沉砂洗井阀、防漏装置配合设计了受力平衡的扩张式分层注水管柱,形成了长效扩张式分注技术。该技术在胜利油田现场应用100余井次,均持续有效。现场应用结果表明,该技术可以有效解决单级及以上扩张式封隔器损坏、底球漏失引起的扩张式分层注水管柱整体失效的问题,提高注水开发效果。

    Abstract:

    To solve the problem of frequent replacement of expandable zonal water injection string due to expansion packer damage or bottom ball valve leakage, a cylinder-type expansion packer with relatively independent internal and external pressure systems was developed in accordance with the principle of hydraulic transmission. According to field practices, a combined sand flushing valve and leak-proof device was developed to ensure positive sealing and to reduce the influence of bottom ball valve leakage on the performance of a zonal water injection string. An expandable zonal water injection string with balanced force was designed based on a cylinder type expansion packer. It combined with sand flushing valve and leak-proof device to form a long-term expandable zonal water injection technology. This technology was applied in more than 100 wells in the Shengli Oilfield, and proved to be continuously effective. The field application results show that this technology can effectively solve the problem of integral failure of expandable zonal water injection strings caused by expansion packer damage and bottom ball valve leakage, thus improving the development efficacy of water injection.

  • 图  1   平衡式分层注水管柱

    Figure  1.   Balanced zonal water injection string

    图  2   液缸扩张式封隔器

    1.上接头;2.中心管;3.胶筒;4.挡碗;5.液压油;6.液缸;7.下接头

    Figure  2.   Cylinder-type expansion packer

    图  3   双液压传动机构

    Figure  3.   Double hydraulic transmission mechanism

    图  4   组合式沉砂洗井阀

    1.上接头;2.外筒;3.锥体;4.过流罩;5.弹簧;6.上阀球;7.上球座;8.挡球销;9.下阀球;10.下球座;11.分流体;12.下接头

    Figure  4.   Combined sand-flushing valve

    图  5   防漏装置

    1.本体;2.锁爪;3.阀球;4.阀座;5.剪钉;6.锁环;7.接头

    Figure  5.   Leak-proof device

    图  6   封隔器性能测试装置

    Figure  6.   Performance testing device of packer

    表  1   封隔器性能测试结果

    Table  1   Performance test results of packer

    项目压力/MPa控制阀1控制阀2控制阀3时间/min现象
    进液口1进液口2压力表1压力表2
    坐封 0.6 0.6 0.60关→开开→关15压力表1处压降为0,进液口2处无滴水
    承上压25.025.0025.0开→关关→开15压力表2处压降为0,进液口2处无滴水
    承下压25.025.025.00关→开开→关15压力表1处压降为0,进液口2处无滴水
    强度30.000015进液口1处压降为0,进液口2处无滴水
    下载: 导出CSV

    表  2   组合式沉砂洗井阀和防漏装置性能测试结果

    Table  2   Performance test results of the combined sand-flushing valve and leak-proof device

    名称密封压力/MPa开启压力/ MPa强度/ MPa时间/min现象
    组合式沉砂洗井阀250.83015测试密封性和强度时,压降为0
    防漏装置255.03015
    下载: 导出CSV
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  • 收稿日期:  2020-03-17
  • 修回日期:  2020-05-27
  • 网络出版日期:  2020-07-15
  • 刊出日期:  2020-06-30

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