Imaging Stratigraphic Channeling with Seismic Attributes in the Malay Basin

In Seismic interpretation a reflection is generally characterized by its arrival time (T) or (F), its reflection strength or amplitude (A) and by its phase. All other attributes are simply linear combination of these three. Each of these attributes represents different aspect of a seismic reflection where in turn brings out different aspects of the geologic features. Amplitude characterizes the reflection strength and can be used in finding sweet spot. A strong amplitude bright spot may be a Direct Hydrocarbon Indicator (DHI) if it is structurally confirmable. An amplitude shutoff may be an indicator of a hydrocarbon water contact. Frequency on the other hand signifies resolution to detect thin beds or an attenuation effect indicative of gas. Phase is the most sensitive of all the attributes and is primarily an indicator of structural discontinuities like faults, unconformity or pinch outs and other geomorphological features.