High Resolution 3D Seismic Data in Shallow Waters of Arabian Gulf: Acquisition and Processing Challenges

Maersk Oil Qatar acquired a large high resolution 3D seismic data covering the<br>entire Block 5 offshore Qatar during 2006 and 2007. The survey parameters were<br>designed to enable optimum imaging of the shallow target of the Al Shaheen<br>reservoirs. Significant processing challenges are typically encountered in the data<br>originating from this area, with considerable multiples issue and difficult velocity<br>analysis being identified as the main ones in this data set. Despite the challenges,<br>the achieved data quality from the first processing of the Al Shaheen seismic<br>survey has allowed important new geology insight.