利用分布式声学传感在荷兰祖伊德布鲁克进行浅层剪切波(SV)反射勘探
Shallow shear-wave (SV) reflection surveying with distributed acoustic sensing in Zuidbroek, the Netherlands
AI总结:
本研究在荷兰祖伊德布鲁克通过野外实验比较DAS与水平检波器系统在SV反射勘探中的性能,发现DAS数据频率较低但反射层连续性更好。
摘要:
在荷兰祖伊德布鲁克进行了一项野外实验,以比较分布式声学传感(DAS)与水平检波器系统在剪切波(SV)反射勘探中的性能。对数据进行了反射成像处理,包括将检波器数据转换为应变率数据,以便在偏移剖面层面上进行这种比较。我们的研究结果表明,DAS直光纤数据显示出较低频率的信息内容,但由于DAS系统更连续、更密集的采样,其反射层连续性优于检波器数据。
英文摘要:
A field experiment was conducted in Zuidbroek, the Netherlands to compare the performance of a DAS and horizontal-geophone system for shear-wave (SV) reflection surveying. The data were subjected to processing for reflection imaging, including conversion of the geophone data to strain-rate data, to enable such a comparison on migrated-section level. Our findings indicate that DAS straight-fibre data shows a lower-frequency information content, but achieves better reflector continuity than the geophone data due to the more continuous and denser sampling with the DAS system.
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