Technologies for the Study of Full-Size Core with CT and Numerical Simulation Methods

Abstract

The work studies "digital petrophysical" technologies applied to the full-size borehole core. During the study various CT aspects were compared: the use of different CT systems, their key characteristics and principles of technological solutions, depending on the general technical conditions and possible tasks. Special attention is paid to the modeling of real characteristics of sections according to CT data. The paper describes calibration procedures and subsequent calculations based on two-energy survey. The results obtained (volume density data stacks and Zeff) have high convergence with GIS data, profile and laboratory measurements. Brand new results obtained on the basis of CT study of full-size core material are applicable both in the current petrophysical graphs of stone material processing and GIS interpretation settings. They also serve as a basis for the creation of digital models using the "digital core" technology.