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Summary
Description(Non) Conventional Deposits.svg
Deutsch: Schematische Darstellung der Erdöl- und Erdgasförderung aus konventionellen und unkonventionellen Lagerstätten. Man beachte, dass die permeable Schicht, in der sich die konventionelle Lagerstätte links im Bild befindet (öl- und gasgesättigtes Gestein sowie wassergesättigtes Gestein unmittelbar unterhalb der Lagerstätte farbig dargestellt), nach rechts impermeabel wird und sogenanntes Tight Gas enthält, das mittels hydraulischer Stimulation (Hydraulic Fracturing, „Fracking“) gewonnen werden kann. Das Muttergestein von konventionellem Öl und Gas sowie vom Tight Gas, der kohlenwasserstofführende Tonstein („Oil shale“ bzw. „Schiefergestein“) darunter, stellt ebenfalls eine unkonventionelle Lagerstätte dar und kann ebenfalls mittels Fracking erschlossen werden.
English: Scheme of petroleum or natural gas extraction in conventional and unconventional deposits. Note that the permeable stratum at the left, in which the conventional deposit is located (oil- and gas-saturated rock and water-saturated rock immediately below the reservoir highlighted in colors), becomes non-permeable to the right and contains so-called tight gas that can be produced by using the hydraulic fracturing technique (“fracking”). The mother rock of the conventional oil and gas as well as the tight gas is the hydrocarbon-bearing claystone (“Oil shale”) below. It is an unconventional deposit as well and it can also be produced by means of fracking.
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