页岩气水平井振动固井套管柱振动特性研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (9) : 149-157.

论文

页岩气水平井振动固井套管柱振动特性研究

齐林山1，尹宜勇1，曲从锋2，刘斌辉2，王立琰1，白翰钦3，王通1

作者信息 +

Vibration characteristics of shale gas horizontal well vibration cementing casing string

QI Linshan1, YIN Yiyong1, QU Congfeng2, LIU Binhui2, WANG Liyan1, BAI Hanqin3, WANG Tong1

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摘要

为了求解页岩气水平井振动固井套管柱振动特性和动力响应，考虑扶正器分布支承的特点，运用传递矩阵法建立了页岩气水平井套管柱的动力学模型，并通过试验验证了套管柱动力学模型的准确性。在此基础上，研究了扶正器支承和套管柱参数对套管柱振动特性的影响，探索了振动固井工况下套管柱的动力响应和振幅衰减规律。研究结果表明：扶正器刚度增大、扶正器支承数量增加和套管外径增大均会导致套管柱固有频率的增加；扶正器刚度增大会加快套管柱振幅衰减；增大激振力的同时利用低频共振能提高套管柱振动有效传播距离。该研究能够为页岩气水平井振动固井装备设计提供有益参考。

Abstract

This paper represented an approach to solving the casing string’s vibration characteristics and dynamic responses in vibration cementing of horizontal well for shale gas extraction. Considering the specific distributed supports of the centralizer, the dynamic model of the casing string was established by matrix transformation method, which was verified by experiments. Based upon the obtained dynamic model, the influences that the parameters of the centralizer’s supports and the casing string bring to the casing string’s vibration characteristics were studied, and the laws of dynamic responses and amplitude attenuation of the casing string in vibration cementing were investigated. It is shown that the natural frequencies of the casing string increase with the increment of the centralizer stiffness, the number of the centralizer supports, and the casing’s outer diameter. In the meantime, the increment of the centralizer stiffness accelerates the amplitude attenuation of the casing string. Furthermore, the effective propagation distance of the casing string vibration is improved by increasing the excitation force while using the low-frequency resonance. These achievements lay foundations for design of the equipment applied in vibration cementing of horizontal well for shale gas development.

导出引用

齐林山1，尹宜勇1，曲从锋2，刘斌辉2，王立琰1，白翰钦3，王通1. 页岩气水平井振动固井套管柱振动特性研究[J]. 振动与冲击, 2024, 43(9): 149-157

QI Linshan1, YIN Yiyong1, QU Congfeng2, LIU Binhui2, WANG Liyan1, BAI Hanqin3, WANG Tong1. Vibration characteristics of shale gas horizontal well vibration cementing casing string[J]. Journal of Vibration and Shock, 2024, 43(9): 149-157

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