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Quantifying the Effect of Overburden Multiples on Miocene Reservoirs in the Levantine BasinNormal access

Authors: P. Doulgeris, D. Anestoudis, P. Haffinger, A. Droujinina and D. Gisolf
Event name: 80th EAGE Conference and Exhibition 2018
Session: AVO/AVA Analysis - Case Histories
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201800665
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 656.32Kb )
Price: € 20

Summary:
The Karish Main field was discovered in 2013 in the Levantive Basin, 75km offshore the northern coast of Israel. The Oligocene-Miocene submarine fan systems form the primary reservoirs of most commercial hydrocarbon discoveries to date in the region. At the end of the Miocene, the Mediterranean Sea became isolated from the Atlantic Ocean, which led to the deposition of up to 1,500 m of evaporites. The prospect was supported by seismic amplitudes and was proven by drilling well Karish-1. The aim of the current study is to model and understand the impact of the overburden evaporite on the seismic response of the reservoir. The wave-equation-based interbed multiples investigation technique deployed was able to identify the major multiple generators while quantifying the level of constructive interference expected on amplitudes at reservoir level from overburden multiples.


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