深海保压取心球阀驱动力影响机理与预测模型
秦如雷 , 卢秋平 , 谢文卫 , 于彦江 , 许本冲 , 高洁云
地球科学 ›› 2026, Vol. 51 ›› Issue (8) : 3201 -3212.
深海保压取心球阀驱动力影响机理与预测模型
Mechanisms and Predictive Modeling of Ball⁃Valve Actuating force in Pressure⁃Preserved Coring Tools
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保压取心钻具对深海资源评价与开发至关重要,其密封球阀的关闭性能直接决定原位岩心样品获取成败. 针对球阀驱动力受多因素耦合影响、精确量化困难的问题,本文融合试验与机器学习展开驱动力多因素定量预测研究. 通过全面析因试验,获取温度、密封圈类型及润滑剂粘度等多水平工况下的驱动力数据,系统分析各因素主效应及交互效应. 结果表明,润滑剂粘度是首要影响因素,且与温度存在强烈耦合作用. 基于此,结合数据增强技术并采用梯度提升回归算法构建多因素预测模型,模型R²值达0.99以上. 量化评估显示关键特征重要性排序与试验分析趋势一致,验证了方法有效性. 研究结果可为深海保压取心钻具球阀密封系统优化设计和材料选型提供可靠依据.
Pressure⁃Preserved Coring Tools are critical to deep⁃sea resource assessment and development, and the closure performance of their sealing ball valve directly determines the success of acquiring in situ core samples. Addressing the difficulty of accurately quantifying the ball⁃valve actuating force under multi⁃variable interaction effects, this study integrates experiments with machine learning to achieve quantitative prediction across multiple factors. Through comprehensive factorial experiments, we obtain driving⁃force data under multi⁃level operating conditions involving temperature, seal⁃ring type, and lubricant viscosity, and systematically analyze main effects and interactions. The results indicate that lubricant viscosity is the primary influencing factor, exhibiting strong coupling with temperature. Building on these findings, we employ data⁃augmentation techniques and a gradient boosting regressor to construct a multi⁃factor prediction model. The model attains an R² exceeding 0.99, and quantitative feature⁃importance analysis yields a ranking consistent with experimental trends, validating the effectiveness of the approach. The results provide a reliable basis for the optimized design and materials selection of sealing systems in deep⁃sea Pressure⁃Preserved Coring Tools.
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国家重点研发计划项目(2023YFC2813102)
工业和信息化部高技术船舶项目(CJ05N20)
自然资源部定向钻井工程技术创新中心、中国地质学会自动化智能化钻探装备创新基地开放课题资助项目(PY202401)
自然资源部定向钻井工程技术创新中心、中国地质学会自动化智能化钻探装备创新基地开放课题资助项目(PY202402)
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