Reflected Sound Field Characteristics of Impulse Source in Open-hole Well during Deep Detection based on microscope technology
发布时间：2024-01-19
元数据
名 称
Reflected Sound Field Characteristics of Impulse Source in Open-hole Well during Deep Detection based on microscope technology
科技资源标识
CSTR:11738.14.NCDC.XDA14.PP6303.2024
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摘 要
This study which applies sound wave depth detection technology, useing the simulation method which establish the calculation model of geological interface deep detection near the borehole of impulse sound source, deeply studied the influence of three aspects on the amplitude of reflected wave in open hole wells which are the emission frequency of impulse sound source, horizontal spacing of geological interface and dip angle of geological interface. The results show that the impulse source has the advantages of high power, wide frequency band, controllable and repeatable excitation, which is more conducive to the detection of geological bodies near wells and can detect more distances. In open hole wells, the optimal emission frequency of impulse source is 4KHz, and the conventional source distance (4m) can meet the logging requirements. The geological interface with arbitrary dip can be detected by means of the instrument.In this paper, the impulse source is used in open hole wells, which overcomes the shortcomings of the previous technology, such as the lack of azimuth resolution, low power of the source and small amplitude of reflected wave, and provides important parameters for the next step of exploring geological structures and geological bodies around wells with impulse sound sources.
Jing Zhou Xu Gao Xie Haiming. Reflected Sound Field Characteristics of Impulse Source in Open-hole Well during Deep Detection based on microscope technology. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP6303.2024.
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CSTR:11738.14.NCDC.XDA14.PP6303.2024