A new type of gas chimney - "Linear Chimney"
A newly discovered type of hydrocarbon leakage structures: blade-shaped gas chimneys instead of classical cylindrical ones, is investigated following the preliminary works of Ho (2013; et al. 2012, 2013, 2016). These so called “Linear Chimneys” are hydraulic fractures caused by overpressured hydrocarbon fluids breaching the cover sediments along preferential directions. These directions are dictated by anisotropic stresses induced by faulting in sediments & pre-existing salt-diapiric structures.
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