Publication Name: Australasian Exploration Geoscience Conference 2019
Authors: Zongying Gong*, Subhash Chandra, Xiaodong Wu, Yajing Li, Min Zhi, Michael Szczepaniak, Barry Hung
Date Published: September 2019
Number of Pages: 5
Abstract:
Recently, there has been increasing interest in exploration of the Gulf of Papua (GoP), part of the Papuan Basin. This Basin has undergone a complicated structural and stratigraphic evolution related to its position on the northeastern edge of the Australian plate. The presence of shallow absorbing anomalies, as well as complex tilted fault blocks and a mud volcano makes velocity model building and seismic imaging challenging. The image underneath such shallow gas anomalies suffers from considerable wavefield distortion and amplitude loss. There are also clear fault shadows and structural ambiguity underneath complex tilted fault blocks, as observed on the vintage PSTM seismic data. All these challenges are caused by the complexity of velocity and/or absorption (Q) fields.