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. Studies on evaporitic rocks are of great importance for the oil and gas industry as they can create traps and seals for the hydrocarbon accumulations. Also, salt high ductility allows the formation of complex structures associated with halokinesis posing thus major challenges for imaging the rocks at their flanks and below the structures. This paper discusses the effects of salt tectonics on post-salt layers and the difficulties in interpreting the top salt surface in a particularly complex area of the Santos Basin. The available seismic and migration velocity model data are from an area located in the distal portion of the Santos Basin where the existing salt structures had a profound effect on the post-salt layers. Complex salt structures were formed in this area due to the intrinsic characteristics of salt rocks as it flew away from the terrigenous depocenters, pushed in the Atlantic Ocean realms. Structures such as overhangs are common and sometimes difficult to be mapped. Their geometry generates multiple points with the same latitude and longitude, but at different depths as they are interpreted and thus represent a challenge for current surface interpolation algorithms. A workflow is proposed to optimize multi-z surfaces generation from the top of the salt layer from the interpretation this surface in conjunction with the analysis of the migration velocity model. Finally, a zonation map of the salt walls, mini-basins, salt domes, overhang and salt window in the region is presented. Keywords: halocynesis, seismic interpretation, salt structures zonation, top of the salt layer. RESUMO. Estudos sobre rochas evaporiticas sao de grande importância para a industria de petroleo e gas, pois podem criar armadilhas e selos para o acumulo de hidrocarbonetos. Alem disso, a alta ductilidade do sal permite a formacao de estruturas complexas associadas a halocinese, representando assim grandes desafios para a visualizacao das rochas em seus flancos e abaixo das estruturas salinas. Este artigo discute os efeitos da tectonica de sal nas camadas do pos-sal e as dificuldades em interpretar a superficie do topo do sal em uma area particularmente complexa da Bacia de Santos. Os dados sismicos e de pocos utilizados sao de uma area localizada na porcao distal da Bacia de Santos, onde as estruturas de sal existentes tiveram um grande efeito nas camadas do pos-sal. Estruturas complexas de sal foram formadas nesta area devido as caracteristicas intrinsecas das rochas salinas a medida que se distanciaram dos depocentros terrigenas, empurradas para o dominio do Oceano Atlântico. Estruturas como overhangs sao comuns e as vezes dificeis de serem mapeadas. Sua geometria gera multiplos pontos com a mesma latitude e longitude, mas em profundidades diferentes conforme sao interpretadas e, portanto, representam um desafio para os algoritmos existentes de interpolacao de superficie. Um fluxo de trabalho e proposto para otimizar a geracao de superficies multi-z do topo da camada de sal a partir da interpretacao sismica desta superficie em conjunto com a analise do modelo de velocidade de migracao. Por fim, e apresentada um zoneamento das muralhas de sal, mini-bacias, domos de sal e janela de sal na area de estudo. Palavras-chave: halocinese, interpretacao sismica, zoneamento das estruturas do sal, topo da camada do sal.

IMPACTS OF HALOKINESIS IN SEISMIC INTERPRETATION AND GENERATION OF THE TOP SALT SURFACE IN A DISTAL PORTION OF THE SANTOS BASIN, BRAZIL