Recovery of Porosity and Permeability for High Plasticity Clays

Anette Krogsbøll, Niels Nielsen Foged

Research output: Contribution to conferencePaperResearchpeer-review

Abstract

Clays, which have been loaded to a high stress level, will under certain conditions keep low porosity and permeability due to the high degree of compression. In some situations it seems that porosity and permeability will recover to a very high extent when the clay is unloaded. This seems to be the case for high plasticity clays that are uncemented, and with a high content of clay minerals, especially smectite. Oedometer tests on samples from the Paleogene period show that 80% or more of the compaction will recover when unloaded, and if unloaded to a stress lower than in situ stress level the clay will expand to an even higher porosity.
Original languageEnglish
Publication date2012
Number of pages5
Publication statusPublished - 2012
EventThird EAGE Shale Workshop Shale Physics and Shale Chemistry: New Plays, New Science, New Possibilities - Barcelona, Spain
Duration: 23 Jan 201225 Jan 2012
Conference number: 3

Conference

ConferenceThird EAGE Shale Workshop Shale Physics and Shale Chemistry: New Plays, New Science, New Possibilities
Number3
CountrySpain
CityBarcelona
Period23/01/201225/01/2012

Fingerprint Dive into the research topics of 'Recovery of Porosity and Permeability for High Plasticity Clays'. Together they form a unique fingerprint.

Cite this