E. Biondi, G. Barnier, B. Biondi , R. Clapp - Receive Top 25 technical presentation during IMAGE 2021
Congratulations to Ettore Biondi, Guillaume Barnier, Biondo Biondi, and Robert Clapp on your excellent technical presentation titled, “Target-oriented elastic full-waveform inversion: Deep-water ocean-bottom-node field-data application,” presented during IMAGE 2021 – the International Meeting for Applied Geoscience & Energy.
Your research and preparation were noticed by your fellow SEG members who judged your paper, ranking it in the top 25 of 709 papers presented at the meeting.
Abstract
We apply a target-oriented elastic full-waveform inversion (FWI) algorithm to the pressure component of an ocean-bottom-node (OBN) field dataset acquired in the Gulf of Mexico. Our target-oriented approach is based on a redatuming technique in which an extended image is employed to synthesize data as if the acquisition geometry was placed in proximity of a subsurface target. This extended image is obtained using a least-squares linear inversion process. The redatuming step allows us to limit the elastic FWI process within the target area only, which in turn results in a substantial computational speed-up factor compared to the elastic inversion of the original dataset. We demonstrate the efficacy of the proposed technique by estimating the elastic properties of a potential hydrocarbon prospect located on the flank of a salt diapir. The retrieved elastic properties are then used to estimate common rock-physics attributes that highlight the potential presence of a gas-bearing sand reservoir.
