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射孔水泥环损伤评价及压裂裂缝扩展规律

张晓诚 李进 韩耀图 张启龙 刘鹏

张晓诚, 李进, 韩耀图, 张启龙, 刘鹏. 射孔水泥环损伤评价及压裂裂缝扩展规律[J]. 钻井液与完井液, 2021, 38(2): 243-248. doi: 10.3969/j.issn.1001-5620.2021.02.019
引用本文: 张晓诚, 李进, 韩耀图, 张启龙, 刘鹏. 射孔水泥环损伤评价及压裂裂缝扩展规律[J]. 钻井液与完井液, 2021, 38(2): 243-248. doi: 10.3969/j.issn.1001-5620.2021.02.019
ZHANG Xiaocheng, LI Jin, HAN Yaotu, ZHANG Qilong, LIU Peng. Damage Evaluation of Perforated Cement Sheath and Study on Fracture Propagation Law[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 243-248. doi: 10.3969/j.issn.1001-5620.2021.02.019
Citation: ZHANG Xiaocheng, LI Jin, HAN Yaotu, ZHANG Qilong, LIU Peng. Damage Evaluation of Perforated Cement Sheath and Study on Fracture Propagation Law[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 243-248. doi: 10.3969/j.issn.1001-5620.2021.02.019

射孔水泥环损伤评价及压裂裂缝扩展规律

doi: 10.3969/j.issn.1001-5620.2021.02.019
基金项目: 

“十三五”国家重大科技专项“渤海油田高效开发示范工程”(2016ZX05058)

详细信息
    作者简介:

    张晓诚,1968年生,毕业于江汉石油学院钻井工程专业,现主要从事海上油气钻完井技术研究与管理工作。电话(022)66501699;E-mail:zhangxch3@cnooc.com.cn

  • 中图分类号: TE256.6

Damage Evaluation of Perforated Cement Sheath and Study on Fracture Propagation Law

  • 摘要: 为了进一步提高储层段水泥环在射孔作业、压裂充填完井或水力压裂作业过程中的力学完整性,满足后期增产作业对固井质量的需求。以射孔作用下的水泥环损伤响应为研究对象,在模拟地层温度和压力工况条件下分别采用大孔径和深穿透2种射孔弹开展射孔实验,分析射孔水泥环损伤与射孔弹及水泥环性能的关系。结合射孔弹结构,建立射孔动态冲击载荷作用下的水泥环伤响应数值模型,提出以累计塑性应变率和最大偏应力为关键指标,形成射孔水泥环冲击损伤量化评价技术。基于流固耦合理论和压裂裂缝扩展力学理论,建立非均值特性水泥环压裂裂缝延展数值分析模型,针对射孔水泥环初始裂纹的4种状态,开展了压裂过程中的水泥环损伤及裂缝延展规律研究。研究结论可指导优化固井设计、优化射孔方案和优化压裂完井方案,对保障井筒安全具有重要意义。

     

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  • 收稿日期:  2020-12-17

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