Comparer des méthodes

	Inversion géophysique	Analyse diagraphique
Domaine	Géosciences	Géosciences
Famille	Process / pipeline	Process / pipeline
Année d'origine	1963	1940s
Auteur d'origine	Tikhonov and Tarantola	Guyod and Barnhart
Type	data assimilation pipeline	subsurface characterization pipeline
Source fondatrice	Tarantola, A. (1987). Inverse Problem Theory: Methods for Data Fitting and Model Parameter Estimation. Elsevier.	Asquith, G. B., & Gibson, C. R. (2004). Basic Well Log Analysis (2nd ed.). American Association of Petroleum Geologists.
Alias	inverse problem solving, parameter estimation, model-data fitting	wireline logging, borehole logging, petrophysical analysis
Apparentées	3	5
Résumé	Geophysical inversion is the process of using observed geophysical data to estimate subsurface properties and structures. Formalized by Tikhonov (1963) and expanded by Tarantola (1987), this mathematical framework solves the inverse problem: given measurements (gravity, magnetics, seismic, electrical), what subsurface model produced them? Inversion is central to all quantitative geophysics and enables extraction of detailed subsurface information from surface or borehole measurements.	Well log analysis is the systematic examination of measurements recorded by instruments lowered into a borehole to characterize subsurface lithology, fluid content, and petrophysical properties. Originating in the 1940s, this method has become indispensable for petroleum exploration, groundwater assessment, and engineering geology. Well logs provide direct depth-correlated data that anchor interpretation of seismic surveys and constrain reservoir models.