METHOD OF IDENTIFICATION OF FORMATIONS IN CARBONACEOUS DEPOSITIONS Russian patent published in 1994 - IPC

FIELD: oil and gas industry. SUBSTANCE: geophysical characteristics of well stratigraphic section are examined and laboratory analysis data on test well core and sludge studied. Using sedimentary strata properties, harmonic analysis of well geophysical logs is accomplished, hidden harmonic components of well stratigraphic section are determined, and core data are identified with specific elementary cyclites. On this rule-of-thumb basis, dismemberment of entire stratigraphic section of well and identification of formation are accomplished. EFFECT: dismemberment of section and identification of formations justified, amount of coring reduced, accuracy of hydrocarbon reserve estimation increased. 1 dwg