AVO Interpretation Improved by Warping Techniques

P186 AVO INTERPRETATION IMPROVED BY WARPING TECHNIQUES YOUNESS EL OUAIR and FREDERIK PIVOT 1 TotalFinaElf CSTJF Av. Larribau 64018 Pau Cedex France Abstract It has been proven in the past that attributes computed in the offset or angle domain (so called AVO attributes) can be interpreted as Direct Hydrocarbon Indicators (DHIs). However one main difficulty for the success of such methods is to guarantee that reflection events on common reflection gathers are perfectly flat in the offset or angle direction. However many phenomena can lead to non perfect alignment of reflection events on gathers: small velocity errors anisotropy lateral velocity