Interpretation Report 2013 Hidden Valley 2D Seismic Survey, EP167, EP168 and EP198 McArthur/Birrindudu Basin NT

Abstract

The 2013 Hidden Valley 2D Seismic Survey was conducted by Geokinetics (Australasia) Pty Ltd on behalf of Pangaea (NT) Pty Ltd within EP167, EP168 and EP198, in the Beetaloo Sub-basin in the Northern Territory. The survey consists of a total of 22 new seismic lines with a total distance of 1407.28km. The acquired seismic data was sent to Velseis Processing for further processing using a standard Pre-Stack Time Migration processing sequence. Its main purpose was to gain a better understanding of the geology of the area.

The final migrated stack processed version of each line was used for the interpretation. The objectives of the interpretation were to 1) Map the potential organic-rich, unconventional shale reservoirs, primarily the Barney Creek Formation and the middle member of the Velkerri Formation, 2) Regionally map key McArthur/Birrindudu and Roper Group sequences across Pangaea's EPs, to confirm the relationship between the Birrindudu and McArthur Basin sequences, 3) Confirm that the distinctive continuous high amplitude reflection events observed on the historic seismic lines corresponded to the Palaeoproterozoic dolomitic units of the Teena/Coxco and Reward Dolomite equivalents, bounding the Barney Creek Formation or its equivalent, and 4) Understand the basin evolution, burial and structural history.