中国科技核心期刊
(中国科技论文统计源期刊)
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石油科学通报 ›› 2026, Vol. 11 ›› Issue (3): 850-766. doi: 10.3969/j.issn.2096-1693.2026.02.016

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面向随钻边缘计算的井下钻井工况轻量化智能识别方法

詹家豪1(), 李军1,2,*(), 柳贡慧1,3, 杨宏伟1, 王超4, 王彪1   

  1. 1 中国石油大学(北京)石油工程学院北京 102249
    2 中国石油大学(北京)克拉玛依校区石油学院克拉玛依 834000
    3 北京工业大学机械与能源工程学院北京 100124
    4 长江大学机械工程学院荆州 434023
  • 收稿日期:2025-11-25 修回日期:2026-01-19 出版日期:2026-06-15 发布日期:2026-06-30
  • 通讯作者: *李军(1971年—),教授,博导,主要研究方向为欠平衡/控压钻井,井下工况人工智能识别、井筒完整性,射孔完井,页岩气开发,岩石力学及其应用,lijun17792692628@163.com
  • 作者简介:詹家豪(1999年—),在读博士研究生,主要研究方向为油气工程信息化与智能化技术,zjh37730904@163.com
  • 基金资助:
    国家重点研发计划项目“陆上超深油气井井喷防控关键技术装备及示范应用”(2023YFC3009200);国家自然科学基金重大科研仪器研制项目“钻井复杂工况井下实时智能识别系统研制”(52227804);国家自然科学基金青年科学基金项目“深井气侵井下原位实时识别与定量解释方法研究”(52304001);国家自然科学基金面上项目“超深复杂地层溢流智能识别与关井—压井一体化调控方法”(52474018)

A lightweight intelligent identification method for downhole drilling conditions based on MWD-oriented edge computing

ZHAN Jiahao1(), LI Jun1,2,*(), LIU Gonghui1,3, YANG Hongwei1, WANG Chao4, WANG Biao1   

  1. 1 College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China
    2 College of Petroleum Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
    3 College of Mechanical and Energy Engineering, Beijing University of Technology, Beijing 100124, China
    4 School of Mechanical Engineering, Yangtze University, Jingzhou 434023, China
  • Received:2025-11-25 Revised:2026-01-19 Online:2026-06-15 Published:2026-06-30
  • Contact: *lijun17792692628@163.com

摘要:

深层钻井过程中工况复杂多变,基于地面参数的识别方法存在传播滞后与误判率高的问题,而井下由于计算资源受限难以支撑复杂算法的直接部署。本文提出一种数据驱动的改进型层次分析法(Data-driven Modified Analytic Hierarchy Process,DM-AHP):以SHAP(SHapley Additive exPlanation)值替代专家评分构建AHP判断矩阵,利用SHAP值的数学性质(效率性、对称性、线性性与零贡献性)从理论上保证权重分配的客观性与乘法一致性。基于"地面训练—井下识别"的分布式架构,地面端完成模型训练、特征解释与判断矩阵生成,井下端仅部署160个参数的轻量化矩阵,并结合基于箱线图的动态阈值机制,实现实时工况识别与自适应更新。基于11口井实测数据验证:模型在7类正常工况识别中准确率达95.5%,F1=0.954;异常状态检测F1=0.931;内存占用48 KB,单次推理耗时42 ms,满足井下实时约束。跨井泛化测试表明,双重动态更新策略(归一化参数更新与阈值自适应调整)将F1由0.864提升至0.954。相较于传统机器学习模型104~106量级的参数规模,本方法在参数压缩逾99%的条件下,识别性能仅下降约1.7%,可直接嵌入随钻测量系统,为深层钻井智能工况监测提供兼具可解释性、轻量化与高精度的可实施技术方案。

关键词: 钻井工况识别, 数据驱动, 层次分析法, SHAP值, 边缘计算, 轻量化模型, 随钻识别

Abstract:

Deep drilling operations involve complex and variable working conditions, where surface-based identification methods suffer from signal propagation delays and high misclassification rates, while limited downhole computing resources preclude the direct deployment of complex algorithms. This paper proposes a Data-driven Modified Analytic Hierarchy Process (DM-AHP) that replaces expert scoring with SHapley Additive exPlanation (SHAP) values for constructing AHP judgment matrices. The mathematical properties of SHAP values—efficiency, symmetry, linearity, and the null player property—theoretically guarantee the objectivity and multiplicative consistency of weight allocation. A “surface training-downhole identification” distributed architecture is established: model training, feature interpretation, and judgment matrix generation are performed on the surface, while only a lightweight 160-parameter matrix is deployed downhole, coupled with a boxplot-based dynamic threshold mechanism for real-time condition identification and adaptive updating. Validation on field data from 11 wells demonstrates that the model achieves 95.5% accuracy and an F1-score of 0.954 in classifying seven normal drilling conditions, with an anomaly detection F1-score of 0.931. Memory consumption is 48 KB and single inference latency is 42 ms, satisfying downhole real-time constraints. Cross-well generalization tests show that the dual dynamic update strategy—combining normalization parameter updates with adaptive threshold adjustment—improves the F1-score from 0.864 to 0.954. Compared with conventional machine learning models with parameter counts on the order of 104~106, the proposed method reduces parameters by over 99% with only a 1.7% decrease in recognition performance. The method can be directly embedded into measurement-while-drilling systems, offering a practically deployable solution that simultaneously achieves interpretability, lightweight deployment, and high accuracy for intelligent condition monitoring in deep drilling operations.

Key words: drilling condition identification, data-driven, analytic hierarchy process, SHAP values, edge computing, lightweight model, real-time drilling identification

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