| 固井水泥声阻抗对垂直入射超声脉冲反射波的影响 |
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| 引用本文： | 丁燕,乔文孝,车小花. 固井水泥声阻抗对垂直入射超声脉冲反射波的影响[J]. 测井技术, 2011, 35(1): 55-57 |
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| 作者姓名： | 丁燕 乔文孝 车小花 |
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| 作者单位： | 中国石油大学油气资源与探测国家重点实验室,北京,102249 |
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| 基金项目： | 国家自然科学基金项目，国家科技重大专项 |
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| 摘 要： | 超声脉冲反射技术是指超声脉冲波垂直入射于不同介质表面,对反射脉冲波的到时、幅度等进行成像.基于超声脉冲反射原理,由传递矩阵法数值模拟了水泥环声阻抗的差异对接收到的超声脉冲反射波波形的影响,在此基础上又研究了水泥环声阻抗对回波能量和反射波波谱的影响.数值研究结果表明.水泥环声阻抗大时的反射波后续波列的幅度小、波列的拖尾比...
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| 关 键 词： | 超声脉冲 水泥环 声阻抗 频谱 谱陷 回波能量 |
The Influence of Cementing Acoustic Impedance on the Ultrasonic Pulse Reflection Waves |
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| DING Yan,QIAO Wenxiao,CHE Xiaohua. The Influence of Cementing Acoustic Impedance on the Ultrasonic Pulse Reflection Waves[J]. Well Logging Technology, 2011, 35(1): 55-57 |
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| Authors: | DING Yan QIAO Wenxiao CHE Xiaohua |
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| Affiliation: | DING Yan,QIAO Wenxiao,CHE Xiaohua(State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing 102249,China) |
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| Abstract: | Ultrasonic pulse reflection technique is referred to the imaging of time and amplitude of the reflected pulse wave which is caused by the incidence of the ultrasonic pulse to the different mediums surface.Based on the principle of ultrasonic pulse-echo method and the propagator matrix method,simulated is the influence of the difference in acoustic impedance cement sheath on the received ultrasonic pulse wave.In addition,we also focus on the impact of the acoustic impedance of cement sheath on the echo energ... |
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| Keywords: | ultrasonic pulse cement sheath acoustic impedance spectrum spectrum trap echo energy |
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