Open AccessGALVANIC AND ELECTROMAGNETIC LOGS IN MODELS OF WEST-SIBERIAN CRETACEOUS FORMATIONS
Author(s) -
Carina V. Sukhorukova,
А. М. Петров,
I. A. Moskaev,
O. V. Nechaev,
М. Н. Никитенко
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-2-3-79-88
Subject(s) - geology , inversion (geology) , isotropy , cretaceous , annulus (botany) , anisotropy , galvanic cell , geophysics , paleontology , materials science , tectonics , physics , metallurgy , composite material , quantum mechanics
Geoelectric models describe the main types of the Cretaceous sediments of Western Siberia. Permeable layers in thin-layered model may be isotropic or anisotropic and include invaded and annulus zones formed during drilling. Galvanic and electromagnetic logs do not provide an accurate resistivity evaluation for thin electrically contrasting layers. The use of special signal transformations partially solves this problem, but 2D inversion provides a more reliable estimation of model parameters.