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Channel Confined Pockmarks - A Case Study from the Present Day Seafloor, Offshore Niger DeltaNormal access

Authors: U. Benjamin, M. Huuse and D. Hodgetts
Event name: 75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
Session: Case Studies on Seismic Interpretation
Publication date: 10 June 2013
DOI: 10.3997/2214-4609.20130587
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.21Mb )
Price: € 20

Using a 738 km2 3D seismic dataset from deep offshore Niger Delta, two types of channel confined pockmarks (channel-margin and intra-channel pockmarks) have been identified and imaged within a submarine channel on the present-day seafloor, offshore Niger delta. The channel-margin pockmarks are aligned along the inner channel margins while the intra-channel pockmarks are randomly distributed within the channel. Our study shows that the pockmarks and their distribution patterns are related to palaeo-channels within a shallow buried channel complex of Quaternary age, and could be useful in understanding fluid flow processes and migration pathways in the basin.

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