大尺寸套管套铣鞋结构优化设计及应用

doi:10.3969/J. ISSN.1006-768X.2022.03.20

钻采工艺 ›› 2022, Vol. 45 ›› Issue (3): 109-113.DOI: 10.3969/J. ISSN.1006-768X.2022.03.20

大尺寸套管套铣鞋结构优化设计及应用

郭科佑¹,李宁¹,项春芬²,贺越腾¹,白延峰³,董宏政¹,王帅¹

１中国石油渤海钻探工程技术研究院２中国石油渤海钻探第四钻井工程分公司３玉门油田环庆采油厂

出版日期:2022-05-25 发布日期:2022-06-28
作者简介:郭科佑（1990-），工程师，2014年毕业于西南石油大学大学高分子材料与工程专业，现主要从事钻井技术研究与服务。
基金资助:
中国石油渤海钻探工程有限公司重大工艺项目“雄安新区区域内油气水井封堵技术研究与应用”（编号：2018ZD53Y）。

Structure Optimization Design and Application of Large Size Casing Milling Shoe

GUO Keyou¹,LI Ning¹, XIANG Chunfen²,HE Yueteng¹,Bai Yanfeng³,DONG Hongzheng¹,WANG Shuai¹

1.CNPC Bohai Drilling Engineering Technology Research Institute, Renqiu, Hebei 062552,China；2.CNPC Bohai Drilling Engineering The Fourth Branch Company，Hejian，Hebei 062450,China；3.Huanqing Oil Production Plant of Yumen Oilfield,Jiuquan, Gansu 735000, China

Online:2022-05-25 Published:2022-06-28

摘要/Abstract

摘要： 目前针对大尺寸套管套铣在国内陆地钻井没有先例，工程参数没有参考经验，在施工过程中易出现各种风险，且常规套铣鞋不适合于雄安新区油气井地下大尺寸套管清除，影响着雄安新区油气井大尺寸套管清除作业的开展，限制了雄安新区开发建设的进程。根据现有套铣鞋缺陷分析结果，对大直径套铣鞋进行了结构优化设计。通过建立套铣鞋流体动力学模型，对套铣鞋在作业中压力场、速度场以及流场在环空中的分布进行优化，并优选铣鞋合金颗粒，提出了对硬质合金颗粒敷焊工艺的改进方法。B116X井现场应用表明，优化改进的套铣鞋在整个施工过程未出现异常情况，井壁较为稳定，碎屑返出情况良好，套铣作业安全可控，平均套铣进尺速度为90 min/m，作业时效高效，显著提高了套铣效率，可为后续雄安新区油气井套管清除施工作业提供指导意义。

关键词: 大尺寸套管, 铣鞋, 湍流模型, 优化, 现场应用

Abstract:

At present, there is no precedent for large-scale casing milling in land drilling in China, engineering parameters have no reference experience, and various risks are easy to occur in the construction process. Moreover, conventional casing milling shoes are not suitable for the removal of large-scale casing in oil and gas wells in Xiong'an New Area, which affects the development of large-scale casing removal in oil and gas wells in Xiong'an New Area, and limits the development and construction process of Xiong'an New Area. Based on the analysis of the defects of the existing casing milling shoes, the structural optimization design of the large-diameter casing milling shoes is carried out. Through the establishment of CFD numerical model, the distribution of the pressure field, velocity field and flow field in annulus was optimized, and the alloy particles were optimized. An improved welding process of cemented carbide particles was proposed. The field application of Well Ba116X shows that the optimized shoes have no abnormal situation in the whole construction process with relatively stable wellbore wall and good debris return. The milling operation is safe and controllable. The average milling footage speed is 90min / m. The operation efficiency is high and the milling efficiency is significantly improved, which can provide guidance for the subsequent casing removal operation in Xiong'an New Area.

Key words: large size casing, milling shoes, turbulence model, optimization, field application

郭科佑, 李宁, 项春芬, 贺越腾, 白延峰, 董宏政, 王帅. 大尺寸套管套铣鞋结构优化设计及应用[J]. 钻采工艺, 2022, 45(3): 109-113.

GUO Keyou, LI Ning, XIANG Chunfen, HE Yueteng, Bai Yanfeng, DONG Hongzheng, WANG Shuai. Structure Optimization Design and Application of Large Size Casing Milling Shoe[J]. Drilling & Production Technology, 2022, 45(3): 109-113.

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大尺寸套管套铣鞋结构优化设计及应用

Structure Optimization Design and Application of Large Size Casing Milling Shoe

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