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In 2006 the company determined that it lacked a solid understanding of the underlying regional deposition on all of the blocks. The company contracted Weinman Geoscience in 2007, to fully review the Madagascar geology and geophysics. Weinman conducted a comprehensive regional basin study, mapped the potential play fairways across each of the blocks and reconfigured all of the existing seismic lines. The study was able to identify lack of source, trap and/or seal in the prior efforts that explained why none of the 60 wells drilled for exploration in prior years were successful in finding commercial oil or gas reserves.
Utilizing the Weinman results, the seismic data on Madagascar Oil’s three exploration PSC Blocks – 3105 Manambolo; 3106 Morondava; and 3107 Manandaza was reevaluated by the company in late 2008, and several high potential areas were identified that warranted further investigation. These areas build on the knowledge from prior drilling and have defined potential reservoir structures that exceed 1.0 billion barrels in size. The evaluation identified the highest potential prospect on each block and the approximate location of the chosen structures is shown on the adjacent map.
All of the prior seismic data on the blocks has been examined and corrected for survey differences and reprocessed for correlation to the fairway play projections. The high potential prospects were also incorporated into a 200km seismic program in 2009 that was designed to provide additional detailed information for geophysical evaluation. That seismic has been processed and the preliminary results for nine identified leads are shown on the individual Block pages.
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