After 20 years of working with seismic anisotropy and multicomponent reflection data (and attending 16 years of workshops on seismic anisotropy), I am convinced that 2000 is the watershed year!

Now, many geophysicists know that:

Various and sundry companies have claimed over the years that they have taken advantage of these phenomena and that their “correct” use of anisotropy and/or multicomponent data has improved the efficiency of their exploration and development. But this is the first year that a major oil company, Elf, supported its claim by releasing reserves estimated with the use of anisotropy and the change in reserves...

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