基于语义检索与图谱推理的卡钻处置措施智能生成方法

Intelligent Generation Method for Pipe Sticking Handling Measures Based on Semantic Retrieval and Graph Reasoning

  • 摘要: 针对钻井工程中卡钻故障处置过度依赖现场经验、故障特征与处置措施匹配精度不高、决策响应滞后等问题,提出了一种基于语义检索与图谱推理的卡钻处置措施智能生成方法。首先,整合多源钻井工程数据,构建了包含故障特征、处置措施及应用效果的钻井卡钻知识图谱,实现领域知识的结构化组织与关联表达。在此基础上,提出“切分—匹配—识别—检索—生成”五步检索流程:将用户非结构化故障描述切分为语义短句,采用BGE-M3向量编码与Chroma索引进行短句−节点语义匹配,通过特征工程与大语言模型混合分类推断卡钻类型,并在Neo4j图谱中进行多跳检索获得结构化处置子图,最终输入大语言模型生成处置建议。同时,构建了“操作合理性—层次合理性—完整性”三维评估模型,对生成措施进行量化评估与分级推荐。现场卡钻案例评价结果表明,该方法生成的处置措施符合率达94.5%,相比纯大语言模型方法提升29.0百分点,验证了方法的有效性与工程实用性。研究结果表明,语义检索与图谱推理的深度融合能够降低卡钻处置对现场经验的依赖,提升故障特征与处置措施的匹配精度与决策响应效率,为钻井工程智能化应急管理提供了知识可溯、工程可用的新型技术方案。

     

    Abstract: To address the problems of over-reliance on field experience, insufficient matching accuracy between failure characteristics and handling measures, and delayed decision-making responses in pipe sticking handling during drilling engineering, an intelligent generation method for pipe sticking handling measures based on semantic retrieval and graph reasoning was proposed. First, a pipe sticking knowledge graph incorporating failure characteristics, handling measures, and handling effects was constructed by integrating multi-source drilling engineering data, enabling structured organization and relational representation of domain knowledge.On this basis, a five-step retrieval process of “segmentation–matching–identification–retrieval–generation” was proposed. The user’s unstructured failure description was segmented into semantic short sentences. BGE-M3 vector encoding and Chroma indexing were employed for short sentence-to-node semantic matching. Hybrid classification combining feature engineering and a large language model was used to infer the pipe sticking type. Multi-hop retrieval was performed in the Neo4j graph to obtain a structured handling subgraph, which was then fed into a large language model to generate handling recommendations. Meanwhile, a three-dimensional evaluation model encompassing “operational rationality–hierarchical rationality–completeness” was established to quantitatively assess the generated measures and provide graded recommendations. Evaluation results from field pipe sticking cases indicated that the handling measures generated by this method achieved an accuracy of 94.5%, which represented a 29.0 percentage point improvement over the pure large language model approach, thereby validating the effectiveness and engineering feasibility of the method. The study demonstrates that the deep integration of semantic retrieval and graph reasoning can reduce the dependence of pipe sticking handling on field experience, improve the matching accuracy between failure characteristics and handling measures, and enhance decision-making response efficiency, providing a novel knowledge-traceable and engineering-applicable technical solution for intelligent emergency management in drilling engineering.

     

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