开发了一个强大的模型和人工智能技术,以实时预测钻井流体密度和同等循环密度
Mohammed Al-Rubaii1, Mohammed Al-Shargabi2, Bayan Aldahlawi1
1Department of Petroleum Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
Sensors (Basel, Switzerland)
|July 29, 2023
概括
新的模型使用表面数据预测等效的循环密度 (ECD) 和泥重量 (MW),避免了昂贵的下孔传感器. 这些方法提高了在具有挑战性的井中钻探的安全性和效率.
科学领域:
- 石油工程是石油工程中的一个.
- 钻井操作 钻井操作
- 控制井的控制是很好的.
背景情况:
- 在深井钻井中,调节形成压力和防止是至关重要的,特别是在高压,高温环境中.
- 控制等效循环密度 (ECD) 是至关重要的,特别是在狭窄的孔隙断裂压力窗口.
- 目前的下洞ECD测量方法昂贵,并且在操作上受到限制.
研究的目的:
- 开发使用表面钻井参数预测ECD和泥重量 (MW) 的新型模型.
- 克服现有的下洞ECD测量技术的局限性.
- 为监测钻井流体性能提供一个具有成本效益和效率的解决方案.
主要方法:
- 开发了两个新型模型:ECDeffc.m用于ECD预测和MWeffc.m用于MW预测.
- 使用的表面钻孔参数:支柱管压力,透率,钻弦旋转和泥特性.
- 使用人工神经网络 (ANN),支持矢量机器 (SVM) 和决策树 (DT) 进行模型开发和验证.
主要成果:
- 使用ANN和SVM,ECD的相关系数估计为0.9947,平均绝对百分比误差为0.23%.
- 估计MW的相关系数为0.9353,使用DT的平均绝对百分比误差为1.66%.
- 与现有的人工智能 (AI) 技术相比,开发的模型的准确性更高,并且与压力钻井 (PWD) 工具数据保持一致.
结论:
- 新的ECDeffc.m和MWeffc.m模型准确地从表面数据中预测ECD和MW.
- 这些型号为昂贵的深孔传感器和软件提供了经济高效的替代方案.
- 这些模型可以在井设计和钻井过程中应用,以优化泥重量和ECD,节省时间和资源.
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