Analysis on Characteristics of Clay Minerals of Ultra-Low Permeability Sandstone Reservoir and Potential Damage to Reservoir

Dan Lin; Ji Jia Liao; Ming Guang Liao; Ji Hao Liao

doi:10.4028/www.scientific.net/AMM.501-504.346

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Analysis on Characteristics of Clay Minerals of...

Analysis on Characteristics of Clay Minerals of Ultra-Low Permeability Sandstone Reservoir and Potential Damage to Reservoir

Abstract:

By X-ray diffraction analysis, scanning electron microscopy and other research methods, this paper detailedly analysizes types and micro-characteristics of clay minerals in the Ordos Basin, Chang 8 formation of Xifeng Oilfield. Studies suggest that clay minerals mainly include petal-like and pompon chlorite, bridge-like and curved sheet illite, page-like kaolinite. The content of illite / smectite interstratified minerals is less. Different kinds of clay minerals can lead to different kinds of reservoir damage. The chlorite mainly causes acid sensitivity. The illite and kaolinite are the main source of speed-sensitivity damage. The illite / smectite interstratified minerals could easily lead to water-sensitivity damage. Through the above studies, this paper can provide foundation of geological basis for rational development.

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Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

346-349

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.346

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Online since:

January 2014

Authors:

Dan Lin*, Ji Jia Liao, Ming Guang Liao, Ji Hao Liao

Keywords:

Clay Minerals, Reservoir, Reservoir Damage, Ultra-Low Permeability Sandstone

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