HF/HR VSP acquisition, processing, and interpretation in the deviated section of the high-angle geothermal borehole of Grigny GGR5, targeting intra-Dogger thin, porous beds | Science and Technology for Energy Transition (STET)

Open Access

Figure 26

VSP first arrival filtered in the high-frequency bands, after cross normalization on full bandwidth raw first arrival peak. The direct arrival signal remains coherent versus depth down to the deepest VSP level, in spite of the abrupt amplitude losses observed at certain depths. Figure modified from Figure 3.3.3 of Bailey [8].

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