Freshwater sensitivity of corrensite and chlorite/smectite in hydrocarbon reservoirs — an ESEM study
作者： J.C Baker , P.J.R Uwins , I.D.R Mackinnon
DOI: 10.1016/0920-4105(94)90043-4
关键词: Chlorite 、 Environmental scanning electron microscope 、 Fresh water 、 Hydrocarbon 、 High magnification 、 Porosity 、 Clay minerals 、 Chlorine 、 Chemistry 、 Mineralogy
摘要: Abstract An Environmental Scanning Electron Microscope (ESEM) has been used to investigate the freshwater sensitivity of secondary corrensite (regularly interstratified chlorite/smectite) and chlorite-rich chlorite/smectite in order determine whether hydrocarbon reservoirs hosting these clays should be regarded as sensitive. ESEM experiments involved an examination close comparison selected clay areas three samples at high magnification before, during after prolonged treatments. Corrensite chlorine/smectite did not visibly swell when immersed fresh water. After soaking water for up months, retained their original morphology associated porosity. Hence, presence or a reservoir need indicate that is
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