Tectonic Effect on the Reservoirs of southwestern Lorestan state (the Impact of Environmental Pollution due to Hydrocarbon seepage)
Subject Areas :
Keywords: tectonic influence, reservoirs, environmental effects, Zagros, Lorestan,
Abstract :
The studied area is located in the Lorestan sub-basin and the southwestern geological province of Lorestan. Lorestan is a folded part of Zagros, whose general trend is in line with the thrust region. Its north-eastern border is limited to the southern border of the Land slide region, and its eastern border corresponds to the rise of Balaroud, and its western-northwestern border corresponds to the southernmost Zagros anticline. The main folding in this basin is related to the Miocene and Pliocene times, which continues now and has caused the formation of elongated anticlines that form most of the oil traps in this region. Using the data of drilling wells in the study area and Arc GIS software, the same thickness maps have been prepared and analyzed. The thickness of the sedimentary layers may show lateral changes under the influence of tectonic processes. These changes can be related to erosion or the change of the lateral facies, which is of great importance in the oil industry. The aim of this research is to provide a comprehensive understanding of the interaction between hydrocarbon seepage and tectonic processes in the Lorestan region of the Zagros region of Iran. The findings of this study contribute to our understanding of hydrocarbon exploration and the environmental impacts associated with hydrocarbon spills. Based on the results and interpretation of the thickness maps of the Ilam, Asmari and Gachsaran formations in the middle parts of the area of the Kabirkoh, Samand, Anaran gas field and other folded structures in this area, which is related to the fissured reservoirs, more environmental pollution in have suffered the region.
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