Publications

North Sumatra Basin (NSB) is known as a potential region of oil and gas exploration and exploitation. One of the potential formations from NSB region is Baong formation which contains Middle Baong Sand (MBS) interval (Figure 1). The Baong formation was formed during the Mid-Miocene and has also been identified as transition zone with stratigraphic trap. Application of the concept of seismic stratigraphy helps to predict potential reservoir and its depositional environment types which is beneficial to maximizing exploration and exploitation activities. This study was conducted to predict Middle Baong Sand potential reservoir and its depositional environment by using seismic stratigraphy analysis consisting of sequence stratigraphy, seismic facies, chronostratigraphy, and system tract interpretation. Quality control by using seimic attribute RMS amplitude helps to justify the correlation of sandprone. The results of this study on MBS generated a map of depositional limit with shelf, slope, and basin floor. The type of potential reservoir is coastal belt sands with depositional environment tidal delta and coastal plain sequentially. Keywords: North Sumatra Basin, Middle Baong Sand, seismic stratigraphy, sequence stratigraphy, seismic facies, chronostratigraphy, system tract.