基于声波全波形的地震波衰减测定

IF 1.3 Q3 Earth and Planetary Sciences

Mining Science Pub Date : 2015-12-10 DOI:10.5277/MSC152205

Eryk Święch, Pawel Wandycz

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引用次数: 0

摘要

介质的弹性能损失可以用质量因子q来量化。利用Winna Góra1井测井的声波全波形来估计纵波质量因子。使用GeoWin软件对数据进行分析。对其中的一对波形进行了声学全波形的解释。数据解释中最重要的部分是人工拾取P波到达点、计算相似函数和拾取P波振幅谱上的异常。利用声波全波形解释数据，计算了质量因子。根据所提供的分析，得出的结论是，在Rotliegend地层中观察到最大的衰减(即最低的Q)。

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Determination of seismic wave attenuation based on acoustic full waveforms

The loss of elastic energy to the medium can be quantified by the quality factor Q. Acoustic full waveforms log from Winna Góra1 borehole were used to estimate P-wave quality factor. Data used in this paper were analyzed with usage of GeoWin software. Interpretation of acoustic full waveforms was performed for the one pair of waveforms. The most important part in the interpretation of data is manual picking of P wave arrival, calculation of semblance function, and picking anomalies of P wave on amplitude spectrum. Using data from interpretation of acoustic full waveforms, we calculated quality factor. Based on provided analysis it is concluded that the highest attenuation ( so the lowest Q) is observed in Rotliegend strata.

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来源期刊

Mining Science MINING & MINERAL PROCESSING-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： Mining Scince. Scientific Papers of the Department Geoengineering, Mining and Geology of the Wroclaw University of Technology. The journal publishes original papers on mining and geology, geo-engineering and the related issues. The journal is devoted to the following topics: fundamental research in mining, underground and open-cast mining technologies, blasting technology, design and construction of mines, geomechanics and geotechnical engineering, mine ventilation, fluid mechanics and its application in mining, mining machinery and condition monitoring, mineral processing, environmental protection and waste utilization. The journal also accepts papers concerns geoengineering which is a sciences covering mining construction, geotechnical engineering, GIS, and earth sciences.