Geophysical research: article

Depth distribution of internal friction coefficient and cohesion in sedimentary rocks of Sakhalin Island
P. Kamenev
L. Bogomolov
Institute of Marine Geology and Geophysics, FEB RAS, Yuzhno-Sakhalinsk, Russia
Journal: Geophysical research
Tome: 18
Number: 1
Year: 2017
Pages: 5-19
UDK: 550.82+571.642
DOI: 10.21455/gr2017.1-1
Full text
Keywords: geomechanics, geomechanical parameters, stress, cohesion, internal friction coefficient
Аnnotation: The paper is devoted to evaluation of geomechanical parameters of sedimentary rocks on the basis of empirical expressions found for different kinds of deep borehole logging. Using the data of acoustic logging for Polyarninskoe oil and Aniva gas fields we estimated cohesion and internal friction coefficient. The maximum possible value of horizontal tectonic stresses is determined. The results are applicable to in situ evaluation of stress-strain state of rocks around oil and gas deposits and to construction of their geomechanical models.