ANALYSIS OF FRACTION CONTENTS IN ROCK SCRATCH TESTS FOR ESTIMATING THE ANGLE OF INTERNAL FRICTION FOR THE SEDIMENTARY COVER OF THE KOVYKTA FIELD

The article describes the possibility of using the granulometric analysis of rock cuttings formed in controlled core scratching tests to estimate the angle of internal friction. The study object is the Kovykta gas-condensate field (GCF) that occupies a wide area in the southeastern part of the Irkut...

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Published inGeodinamika i tektonofizika Vol. 12; no. 3S; pp. 748 - 753
Main Authors Toropetsky, K. V., Borisov, G. A., Smirnov, A. S., Nosikov, A. V.
Format Journal Article
LanguageEnglish
Russian
Published Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust 01.01.2021
Subjects
angle of internal friction
controlled core scratching
correlation analysis
geomechanical properties
granulometric analysis
kovykta field
scratch test
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Summary:The article describes the possibility of using the granulometric analysis of rock cuttings formed in controlled core scratching tests to estimate the angle of internal friction. The study object is the Kovykta gas-condensate field (GCF) that occupies a wide area in the southeastern part of the Irkutsk amphitheater of the Siberian platform. This uniquely complex geological structure holds significant reserves of hydrocarbons. Its sedimentary cover is composed of the Vendian – lower Paleozoic and partly Riphean formations. Their total thickness exceeds 6000 m, as estimated from the new seismic survey data [Vakhromeev et al., 2019]. The sedimentary cover of the Kovykta GCF has been studied by surface and borehole geophysical techniques, remote sensing and geostructural methods, in combination with the tectonophysical approach [Seminsky et al., 2018] based on drilling data, including standard and special core sampling data.
ISSN:2078-502X
2078-502X
DOI:10.5800/GT-2021-12-3s-0551