2019
DOI: 10.22564/rbgf.v37i3.2004
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Improving Pre-Salt Reservoirs Seismic Images When Considering the Stratified Evaporites Insertion in the Initial Model for the Velocity Updating Processes Prior to the Seismic Migration

Abstract: ABSTRACT. Structurally complex areas, such as the pre-salt section in the offshore Santos Basin, SE Brazil, is a challenge to represent the geology using seismic images. One of the main causes of the observed imaging problems is the evaporitic section and its considerations about velocities used for seismic migration purposes. Some authors consider set to this section an almost constant value (close to 4,500 m/s) which approximately represents the halite velocity, the most abundant mineral in this salt formati… Show more

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Cited by 4 publications
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“…The salt thickness varies expressively in the area. Besides, salt properties are not homogeneous, as can be seen by the internal reflections -this characteristic plays an important role in properly imaging those areas (Maul et al, 2019).…”
Section: Methodsmentioning
confidence: 99%
“…The salt thickness varies expressively in the area. Besides, salt properties are not homogeneous, as can be seen by the internal reflections -this characteristic plays an important role in properly imaging those areas (Maul et al, 2019).…”
Section: Methodsmentioning
confidence: 99%