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The SiO2 Occurrence and Origin in Shale Reservoir, a Case Study from the Yanchang Formation, Ordos Basin
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 7th EAGE Saint Petersburg International Conference and Exhibition, Apr 2016, cp-480-00003
- ISBN: 978-94-6282-179-8
Abstract
This study employs samples from the Yanchang Formation of Ordos Basin, probing the SiO2 occurrence and origin in shale reservoir in order to figure out the effect of SiO2 on physical shale properties.In order to research the SiO2 occurrence and origin in shale reservoir a series of integrated and repeatable methods has been used including X-ray diffraction of bulk and clay minerals, cathode luminescence analysis, Ar-ion polishing, focused ion beam scanning electron microscopy (FIB-SEM) and energy dispersive spectrometry. three point-views were drawn about SiO2 occurrence and its effect on rock property.