| 采油超声换能器辐射阻抗研究 |
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| 引用本文： | 王阳恩,江西. 采油超声换能器辐射阻抗研究[J]. 石油仪器, 2003, 17(6): 1-4 |
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| 作者姓名： | 王阳恩 江西 |
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| 作者单位： | 荆州,江汉石油学院理学院 |
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| 摘 要： | 根据超声波在媒质中的波动方程，在合理简化的基础上，推导出了超声波在井液及岩层中的波函数、声压、质点振动速度，求出了超声换能器的辐射阻抗。讨论了超声换能器半径、油井半径、井液和岩层的声速及密度对超声换能器辐射阻抗的影响。得出：超声换能器在不同油井中使用时，由于油井中井液及岩层参数的不同，可导致超声换能器辐射阻抗的变化，影响超声波在岩层中的作用范围。
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| 关 键 词： | 油井 采油 岩层 作用范围 推导 半径 声速 辐射阻抗 声压 波函数 |
| 修稿时间： | 2003-07-12 |
Study on the radiation impedance of ultrasonic transducers used in oil producation |
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| Wang Yangen and Jiang Xi.. Study on the radiation impedance of ultrasonic transducers used in oil producation[J]. Petroleum Instruments, 2003, 17(6): 1-4 |
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| Authors: | Wang Yangen and Jiang Xi. |
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| Affiliation: | Wang Yangen and Jiang Xi. |
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| Abstract: | The wave function,sound pressure and particle vibrational volecity of ultrasonic wave in well liquid and rocks statum are derived in the case of reasonable simplification according to the wave differential equation,and the radiation impedance is extracted.The influence of oilwell radius,ultrasonic transducer radius,well liquid density and sonic volecity in well liquid and rocks stratum on the radiation impedance of the ultrasonic transducer are discussed. The conclusion is obtained that the sphere of action of the ultrasonic transducer changes with the parameters of well liquid and rocks stratum,which can affect the radiation power of the ultrasonic transducer. |
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| Keywords: | oil production technology ultrasonic transducer radiation impedance action sphere |
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