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首页> 外文期刊>BioTechnology: An Indian Journal >The fiber optic sensor-based online monitoring technology for oil well down-hole casting strain and pressure
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The fiber optic sensor-based online monitoring technology for oil well down-hole casting strain and pressure

机译：基于光纤传感器的油井井下铸件应变和压力在线监测技术

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Oilfield casing not only bring economic losses, but also oil field development program and the application of enhanced oil recovery measures adversely affect, directly affecting the development of oil fields, well casing damage has become the hard problem of oil fields. In recent years, domestic and foreign scholars have been conducting research damaged well casing, casing damage mechanism in a certain degree of understanding achieved, but there is no effective way to prevent and mitigate the damage cased hole, therefore, to grasp the casing deformation and stress and strain, early prevention and treatment has become an urgent problem. In accordance with the special circumstances of oil well and characteristics of oil field casing, made using fiber-optic sensors monitoring strain and pressure oil well casing, making the analysis of fiber grating sensor and fiberoptic Brillouin sensors external pressure during oil well casing pipe and casing deformation when the strain monitoring of the working process. Through the real-time monitoring experiment, it shows that the casing real-time monitoring system based on the fiber-optic sensors can reflect the axial and circumferential casing stress real-timely and accurately. It is significant to forecast the casing damage accurately and reduce economic losses.
机译：油田套管不仅带来经济损失，而且对油田开发方案和加强采油措施的应用产生不利影响，直接影响油田的发展，井套管的损坏已成为油田的难题。近年来，国内外学者一直在进行套管井的破损研究，虽然对套管的破损机理有了一定的认识，但是目前尚没有有效的方法来预防和减轻套管井的破损，因此，要掌握套管的变形和压力和劳累，及早预防和治疗已成为当务之急。根据油井的特殊情况和油田套管的特点，利用光纤传感器监测应变和压力油井套管，对光纤光栅传感器和光纤布里渊传感器在油井套管和套管期间的外压进行分析。监测变形时的工作过程。通过实时监测实验表明，基于光纤传感器的套管实时监测系统可以实时，准确地反映套管轴向，周向应力。准确预测套管损坏并减少经济损失具有重要意义。

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