| 井中相控声源激发的声场 |
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| 引用本文： | 施振飞,沈建国.井中相控声源激发的声场[J].地球物理学进展,2005,20(2):298-301. |
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| 作者姓名： | 施振飞 沈建国 |
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| 作者单位： | 石油大学资源与信息学院,东营,257061;江苏油田地质测井处,扬州,225009;天津大学药学院检测中心,天津,300072 |
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| 摘 要： | 用不同的声源激发，可以得到不同的声波测井波形.根据唯一性定理和叠加定理，由多个位于不同位置且发射时间有一定差别的声源构成的相控声源激发的声场是叠加声场.本文先用一些实验结果肯定了相控声源激发声场的指向性随相控参数改变，而后用数值模拟的方法计算了井中相控声源激发的声场.发现井内相控声源在地层中激发的声场能够在一个确定的方向形成声束.改变相控参数，该声束的方向和能量均发生改变.
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| 关 键 词： | 声波测井 相控声源 波形 声场分布 |
| 文章编号： | 1004-2903(2005)02-0298-04 |
| 修稿时间： | 2004年5月30日 |
The acoustic distribution produced by acoustic phased transducers in well |
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| Shi Zhen-fei,SHEN Jian-guo.The acoustic distribution produced by acoustic phased transducers in well[J].Progress in Geophysics,2005,20(2):298-301. |
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| Authors: | Shi Zhen-fei SHEN Jian-guo |
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| Abstract: | Sonic logging waveforms are different if the emit transducer is changed. There are many emit transducers in phase controlled sonic source. In this paper, some experiment results are given, in which the direction and path of sonic wave propagation produced by this phase controlled sonic source are varied. From numerically calculated acoustic distribution of sonic logging by this sonic source, it is funded that the direction aod path of sonic wave propagation in sold can been controlled by delay time too. |
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| Keywords: | sonic logging acoustic phased source waveform acoustic distribution |
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