Publication

Retention Properties and Permeability of Shales

Lyesse Laloui
2013
Posters

Abstract

The water retention mechanisms play a major role in either fluid trapping due to the capillary forces present in low permeability formations, as in the case of shale gas reservoir, or in the resaturation of shale formations after ventilation, as in the case of deep geological repositories. Moreover, the permeability and the swelling/shrinkage behaviour of shale are related to suction, or the degree of saturation variations. The poster presents experimental techniques and results related to the analysis of the water retention behaviour and permeability-porosity relationship for Swiss shales.

Official source

https://infoscience.epfl.ch/entities/publication/d544bfbd-698f-47bc-9f29-47cccd58dcb5

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Lyesse Laloui
2013
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d544bfbd-698f-47bc-9f29-47cccd58dcb5

About this result

Related concepts (27)

Shale oil

Shale oil is an unconventional oil produced from oil shale rock fragments by pyrolysis, hydrogenation, or thermal dissolution. These processes convert the organic matter within the rock (kerogen) into synthetic oil and gas. The resulting oil can be used immediately as a fuel or upgraded to meet refinery feedstock specifications by adding hydrogen and removing impurities such as sulfur and nitrogen. The refined products can be used for the same purposes as those derived from crude oil.

Oil shale

Oil shale is an organic-rich fine-grained sedimentary rock containing kerogen (a solid mixture of organic chemical compounds) from which liquid hydrocarbons can be produced. In addition to kerogen, general composition of oil shales constitutes inorganic substance and bitumens. Based on their deposition environment, oil shales are classified as marine, lacustrine and terrestrial oil shales. Oil shales differ from oil-bearing shales, shale deposits that contain petroleum (tight oil) that is sometimes produced from drilled wells.

Shale gas

Shale gas is an unconventional natural gas that is found trapped within shale formations. Since the 1990s a combination of horizontal drilling and hydraulic fracturing has made large volumes of shale gas more economical to produce, and some analysts expect that shale gas will greatly expand worldwide energy supply. Shale gas has become an increasingly important source of natural gas in the United States since the start of this century, and interest has spread to potential gas shales in the rest of the world.

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Retention Properties and Permeability of Shales

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