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Application of Spectral Decomposition and Inversion to Understand the Structural Development of Thrust Belts
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, PGCE 2010, Mar 2010, cp-255-00008
Abstract
Since first discovery of oil on Khaur structure, oil companies have been actively looking for hydrocarbon in the thrust fold belts of Pakistan . A lot of regional work has been done to understand the evolution of thrust fold belts and development of individual structures. Most of the studies were focused on building a regional model based on plate tectonic, satellite imageries, surface geology, gravity, magnetic andseismic data. When it comes to developing detail understanding of individual structures, seismic data has been mostly restricted to making structure maps at reservoir level. In this paper we are demonstrating that special techniques like Spectral Decomposition and Inversion should be used regularly to build detail understanding of the structural and stratigraphic complexities involved within the individual structures. Working backwards this will result in refining our regional structural and stratigraphic model besides enhancing exploration and development capabilities of the area. Spectral Decomposition and Inversion was applied on a structure in Kirthar /Sulaiman foldbelt. The results were encouraging and showed both structural and stratigraphic detail not seen on the conventional seismic.