Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Formation damage in sandstones caused by clay dispersion and migration
X-ray diffraction and electron microscopy were employed in conjunction with core flooding experiments to investigate clay migration phenomena; severe water sensitivity or loss of permeability was observed in suite of sandstones in spite of almost total absence of montmorillonite or swelling mixed layer clays; direct cause of damage was displacement of submicroscopic natural clay crystals of needle-shaped mica and hexagonal-shaped kaolinite; mobile clays were identified as authigenic crystals that are present on pore walls and are dislodged by changes in water chemistry combined with water movement.
Formation damage in sandstones caused by clay dispersion and migration
X-ray diffraction and electron microscopy were employed in conjunction with core flooding experiments to investigate clay migration phenomena; severe water sensitivity or loss of permeability was observed in suite of sandstones in spite of almost total absence of montmorillonite or swelling mixed layer clays; direct cause of damage was displacement of submicroscopic natural clay crystals of needle-shaped mica and hexagonal-shaped kaolinite; mobile clays were identified as authigenic crystals that are present on pore walls and are dislodged by changes in water chemistry combined with water movement.
Formation damage in sandstones caused by clay dispersion and migration
Clays Clay Minerals -- Nat Conf -- Proc
Gray, D.H. (Autor:in) / Rex, R.W. (Autor:in)
Proceedings of the 14th National Conference on Clays and Clay Minerals ; 1965
1965
12 pages
2 Plates
Aufsatz (Konferenz)
Englisch
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