Inverse modeling of tight gas reservoirs [Elektronische Ressource] / von: George Mtchedlishvili

Inverse Modeling of Tight Gas Reservoirs Der Fakultät für Geowissenschaften, Geotechnik und Bergbau der Technischen Universität Bergakademie Freiberg eingereichte Dissertation Zur Erlangung des akademischen Grades Doktor-Ingenieur Dr.-Ing. vorgelegt von: Dipl.-Ing. Mtchedlishvili George geboren am 01.10.1977 in Tbilisi, Georgien Freiberg, den: 25.01.2007 Abstract The present thesis focuses on the following issues: (i) inverse modeling techniques for characterization of tight-gas reservoirs, (ii) the numerical investigations of advanced well stimulation techniques, such as hydraulic fracturing as well as underbalanced drilling, and (iii) the statistical analyses of results for identification of the optimal level of parameterization for calibrated model as quality and quantity of the measured data justifies. In terms of a considerable increase the quality of characterization of tight-gas reservoirs, the aim of this work was (i) an accurate representation of technological aspects and specific conditions in a reser-voir simulation model, induced after the hydraulic fracturing or as a result of the underbalanced drill-ing procedure and (ii) performing the history match on a basis of real field data to calibrate the gener-ated model by identifying the main model parameters and to investigate the different physical mechanisms, e.g. multiphase flow phenomena, affecting the well production performance.