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环江油田巴19区块长7段钙夹层评价与大斜度井分段压裂优化

宋景远, 姚谋, 景文平, 刘圣战, 毛冠华, 张恒, 季长伟. 2021. 环江油田巴19区块长7段钙夹层评价与大斜度井分段压裂优化. 钻探工程, 48(10): 29-35. doi: 10.12143/j.ztgc.2021.10.004
引用本文: 宋景远, 姚谋, 景文平, 刘圣战, 毛冠华, 张恒, 季长伟. 2021. 环江油田巴19区块长7段钙夹层评价与大斜度井分段压裂优化. 钻探工程, 48(10): 29-35. doi: 10.12143/j.ztgc.2021.10.004
SONG Jingyuan, YAO Mou, JING Wenping, LIU Shengzhan, MAO Guanhua, ZHANG Heng and JI Changwei, . 2021. Calcic interbed evaluation and multi-stage frac optimization for high deviation wells in Chang-7 reservoir, Ba-19 Block of Huanjiang Oilfield. DRILLING ENGINEERING, 48(10): 29-35. doi: 10.12143/j.ztgc.2021.10.004
Citation: SONG Jingyuan, YAO Mou, JING Wenping, LIU Shengzhan, MAO Guanhua, ZHANG Heng and JI Changwei, . 2021. Calcic interbed evaluation and multi-stage frac optimization for high deviation wells in Chang-7 reservoir, Ba-19 Block of Huanjiang Oilfield. DRILLING ENGINEERING, 48(10): 29-35. doi: 10.12143/j.ztgc.2021.10.004

环江油田巴19区块长7段钙夹层评价与大斜度井分段压裂优化

详细信息
    作者简介: 宋景远,男,汉族,1966年生,高级工程师,化学专业,从事钻井液/压裂液研究和技术服务工作,北京市海淀区学院路29号,songjingyuan3g@163.com。
  • 中图分类号: TE2;TE3

Calcic interbed evaluation and multi-stage frac optimization for high deviation wells in Chang-7 reservoir, Ba-19 Block of Huanjiang Oilfield

  • 为实现最大化油藏接触,提高油藏产出水平,长庆环江油田巴19区块长7油藏采用大斜度井开发方式。在初期压裂改造中,由于忽视了层内钙质夹层对压裂缝高的影响,导致实际裂缝的几何形态与设计产生巨大偏差,出现了邻井裂缝串通及生产高含水等问题。本文通过研究油藏剖面测井特征,在细分层位基础上分析纵向应力分布,研究“复合层效应”影响裂缝缝高延伸的关键因素,优化了分段压裂方案,获得了更好的水力裂缝几何形态和尺寸。技术调整后现场压裂工艺质量获得提高,长7段油藏压裂改造质量优良率100%,大大提高了该区块的开发水平。
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出版历程
收稿日期:  2020-12-09
修回日期:  2021-04-28

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