Long-Term Expandable Zonal Water Injection Technology in the Shengli Oilfield
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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.
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Keywords:
- zonal water injection /
- packer /
- check valve /
- flushing valve /
- Shengli Oilfied
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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 0.6 0 关→开 开→关 开 15 压力表1处压降为0,进液口2处无滴水 承上压 25.0 25.0 0 25.0 开→关 关→开 开 15 压力表2处压降为0,进液口2处无滴水 承下压 25.0 25.0 25.0 0 关→开 开→关 开 15 压力表1处压降为0,进液口2处无滴水 强度 30.0 0 0 0 开 开 开 15 进液口1处压降为0,进液口2处无滴水 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 25 0.8 30 15 测试密封性和强度时,压降为0 防漏装置 25 5.0 30 15 -
[1] 董卫兵. 中国东部老油田开发的实践探索与启示[J]. 会计之友, 2011(2): 122–124. doi: 10.3969/j.issn.1004-5937.2011.02.051 DONG Weibing. Practical exploration and enlightenment of the development of old oil fields in eastern China[J]. Friends of Accounting, 2011(2): 122–124. doi: 10.3969/j.issn.1004-5937.2011.02.051
[2] 陈祥. 浅谈水驱单元提高注水井“三率”的方法[J]. 中文科技期刊数据库(引文版)工程技术, 2015, 7(15): 261. CHEN Xiang. Discussion on the method of improving the“triple ratio”of water injection wells in water flooding unit[J]. Chinese Science and Technology Periodical Database(Citation Version)Engineering Technology, 2015, 7(15): 261.
[3] 王增林. 胜利油田分层注水工艺技术研究与实践[J]. 油气地质与采收率, 2018, 25(6): 1–6. WANG Zenglin. Research and practice of separated layer water injection technology in Shengli Oilfield[J]. Petroleum Geology and Recovery Efficiency, 2018, 25(6): 1–6.
[4] 刘连伟. 油井分层注水用KZ344-114型扩张式封隔器[J]. 石油机械, 2007, 35(3): 27–28. doi: 10.3969/j.issn.1001-4578.2007.03.009 LIU Lianwei. KZ344-114 type inflatable packer used for separate-layer water injection[J]. China Petroleum Machinery, 2007, 35(3): 27–28. doi: 10.3969/j.issn.1001-4578.2007.03.009
[5] 汪润涛.分层注水管柱失效分析与评估[D].青岛: 中国石油大学(华东), 2017. WANG Runtao. Failure analysis and evaluation of layered water injection[D]. Qingdao: China University of Petroleum(East China), 2017.
[6] 陈向军,李景辉,陶晓. 影响分注有效期因素分析及下步对策[J]. 内蒙古石油化工, 2009,35(11): 44–45. CHEN Xiangjun, LI Jinghui, TAO Xiao. Analysis of the factors affecting the validity period of separate injection wells and the next countermeasures[J]. Inner Mongolia Petrochemical Industry, 2009,35(11): 44–45.
[7] 刘阳,秦金立. 无骨架内衬扩张式封隔器的研制与现场试验[J]. 石油钻探技术, 2017, 45(5): 68–72. LIU Yang, QIN Jinli. Development and field test of non-lining inflatable packers[J]. Petroleum Drilling Techniques, 2017, 45(5): 68–72.
[8] 秦金立. 选择性重复压裂工具关键技术[J]. 石油钻探技术, 2018, 46(4): 71–77. QIN Jinli. Key techniques of selective refracturing tools[J]. Petroleum Drilling Techniques, 2018, 46(4): 71–77.
[9] 徐新华,唐海兵,胡正强,等. 小直径扩张式封隔器压裂管柱的研制与应用[J]. 石油机械, 2018, 46(9): 81–86. XU Xinhua, TANG Haibing, HU Zhengqiang, et al. Development and application of fracturing string with small diameter expandable packer[J]. China Petroleum Machinery, 2018, 46(9): 81–86.
[10] 张道鹏,刘勇. 扩张式封隔器在老井试修中的应用试验[J]. 石化技术, 2019, 26(1): 132. doi: 10.3969/j.issn.1006-0235.2019.01.080 ZHANG Daopeng, LIU Yong. Application test of expansion packer in old well testing and repair[J]. Petrochemical Industry Technology, 2019, 26(1): 132. doi: 10.3969/j.issn.1006-0235.2019.01.080
[11] 李国太. K344油层保护封隔器的研究与应用[J]. 石油机械, 2009, 37(6): 55–57. LI Guotai. Research and application of K344 reservoir protection packer[J]. China Petroleum Machinery, 2009, 37(6): 55–57.
[12] 王宏万,马艳洁,刘晋伟,等. 密闭扩张式封隔器的研制及应用[J]. 石油机械, 2012, 40(3): 91–93. WANG Hongwan, MA Yanjie, LIU Jinwei, et al. The development and application of the K344(1)-112 airtight expansion packer[J]. China Petroleum Machinery, 2012, 40(3): 91–93.
[13] 于九政,王子建,罗必林,等. 深井多级分注工艺管柱研制及应用[J]. 石油机械, 2012, 40(10): 88–90. YU Jiuzheng, WANG Zijian, LUO Bilin, et al. Development and application of multistage separate injection technological string for deep well[J]. China Petroleum Machinery, 2012, 40(10): 88–90.
[14] 邱宣怀.机械设计[M].北京: 高等教育出版社, 1997: 120. QIU Xuanhuai. Mechanical design[M]. Beijing: Higher Education Press, 1997: 120.
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