Paper Summary
Andrew Long attempts to explain FWI in accessible terms by presenting the critical steps for the methodology to yield useful results, and refers to some common ambitions of the many industry and academic implementations: 1. Setting up a scheme that adjusts the differences between modeled and measured shot gathers so that the subsequent steps in the iterative workflow are stable, 2. Isolating only the seismic information that is relevant to the subsurface parameters being isolated, and 3. Guiding the iterative recovery of an accurate subsurface model in a manner that reduces spurious artifacts. If youre a strong mathematical geophysicist this is probably below your competency, but if you can tolerate some basic algebra and have an interest in what FWI is about, then hopefully this might help you complete the initial journey. This article is written to accompany the three-part TechByte webinar series on FWI.