Abstract
In this study, the ratio of compressional and shear wave velocity versus acoustic impedance as rock physics template for northern part of the Vienna Basin has been derived for siliciclastic rocks based on formation evaluation of well-log data. The results have been verified through wells in different areas drilled in various depths. Additionally, depositional sequences like prograding deltas and braided rivers have been plotted onto the rock physics template to illustrate the effect of changing shale volume. Carbonates below the basin have been included into the study and results from previous projects, based on laboratory data and petrophysical models on certain lithologies in the Vienna Basin, have been used to compare the outcome. The result is a rock physics template which includes important properties such as porosity, true vertical depth and fluid type from log data and which is considered useable throughout different areas and various lithologies of the Vienna Basin.
Highlights
Seismic measurements are the most frequently used methods in exploration activities in the oil and gas industry
Lithology and fluid effects and the influence of different depositional sequences within the Vienna Basin on the plotting behaviour and the derived shale the x-axes is different from the previous crossplots (7000 g m/cm3 s) due to the deeper depth of investigated formations and sand lines within the Neogene sequence of the Vienna Basin, as well as ‘‘the main dolomite’’ beneath will be interpreted and discussed
A general rock physics template for Vienna Basin derived fully from log data is created throughout the study
Summary
Seismic measurements are the most frequently used methods in exploration activities in the oil and gas industry. Rock physics templates for carbonate reservoirs have been created too. Ba et al (2013) created multiscale rock physics templates for carbonates and validated them with laboratory, well and seismic data. Gegenhuber and Pupos (2015) determined elastic properties with Hashin and Shtrikman (1962) bounds and derived vp/vs–acoustic impedance-based rock physics templates from laboratory data for three different carbonate types from Austria under dry and wet conditions, applied on log and seismic data (Pupos 2015). The combined use of these two attributes can help differentiate between fluid and lithology anomalies in the rock physics template. Avseth and Carcione (2015) used rock physics templates to get an understanding of complex kerogen-rich Jurassic source rocks from the Norwegian Shelf. Avseth and Carcione (2015) used rock physics templates to get an understanding of complex kerogen-rich Jurassic source rocks from the Norwegian Shelf. vp/vs–acoustic impedance behaviour
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
