First International Meeting for Applied Geoscience &Amp; Energy Expanded Abstracts 2021
DOI: 10.1190/segam2021-3583546.1
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Design, acquisition, and processing of three Permian Basin 3D VSP surveys to support the processing and interpretation of a large 3D/3C surface seismic survey

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Cited by 5 publications
(3 citation statements)
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“…These interval velocities are merged with near‐surface velocities to form the shallow velocities missing in the sonic logs. The shallow velocities follow the similar depth trend identified by the zero‐offset Vertical seismic profiling (VSP) in a nearby location (Van Dok et al., 2021). The two lower velocity zones correspond to the sandstone layers in the Yates and Grayburg–San Andres intervals (Figure 2) respectively, which are also identified in the well logs and FWI results shown by Vassiliou et al.…”
Section: Sh‐wave and Acoustic P‐wave Full Waveform Inversionsupporting
confidence: 74%
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“…These interval velocities are merged with near‐surface velocities to form the shallow velocities missing in the sonic logs. The shallow velocities follow the similar depth trend identified by the zero‐offset Vertical seismic profiling (VSP) in a nearby location (Van Dok et al., 2021). The two lower velocity zones correspond to the sandstone layers in the Yates and Grayburg–San Andres intervals (Figure 2) respectively, which are also identified in the well logs and FWI results shown by Vassiliou et al.…”
Section: Sh‐wave and Acoustic P‐wave Full Waveform Inversionsupporting
confidence: 74%
“…The V p / V s ratio directly calculated from the inverted P‐ and S‐wave model (Figure 6c) shows a near‐surface layer with a high V p / V s ratio (about 2.8), which is likely caused by unconsolidated rocks in the near‐surface and identified in a VSP survey acquired in a nearby county (Van Dok et al., 2021) as well. The black arrow in Figure 6 indicates high P‐wave velocities and high V p / V s ratios related to the dolomitized facies in the upper Grayburg–San Andres interval (Wilson et al., 2019).…”
Section: Sh‐wave and Acoustic P‐wave Full Waveform Inversionmentioning
confidence: 95%
“…With a minor operational cost and low power consumption, FO sensing can be used on-demand to acquire single or multiple sets of VSPs covering the full depth range of the well without well intervention [5][6][7]. Since dense sampling by borehole receivers is beneficial for large-scale 3D VSP imaging in the Middle East [8], it is highly desirable to replace geophones by DAS to achieve dense channel VSP imaging at affordable Sensors 2024, 24, 1075 2 of 17 cost [9]. However, concerns on the quality of DAS data have held back the deployment of DAS in VSP surveys and demanded good solutions on quality control (QC).…”
Section: Introductionmentioning
confidence: 99%