SUBSURFACE MODELING AND UNCERTAINTY MODELS OF THE NEOGENE-QUATERNARY SEDIMENTS IN THE PART OF SAVA DEPRESSION BASED ON DIGITALIZATION OF LEGACY MAP DATA
Journal Title: UNKNOWN - Year 2015, Vol 30, Issue 2
Abstract
Aim of the research was the accurate digitalization and subsurface modelling of the legacy data, namely paper-based geological maps. The research area covers approximately 1053 km2 and is located in Croatian part of Pannonian Basin System, Sava Depression, i.e. in the surrounding of Stružec Oil Field. Data input for the structural analysis were structural maps which were previously made in the 1980. Set included five structural maps based on regional E-log markers and one map of pre-Neogene surface. All were digitalized in program ArcGIS, and later modelled in Petrel. Structural contours and total of 134 faults were exported into Petrel software where they were further processed and regrouped. From such digitalized and processed data the geological model (geomodel) was made using complex fault framework. The study concerned the advantages and errors that occur during creation of such geomodel. It clearly displays relations between major and minor faults and fault slips, geological structures and structural traps in 3D (e.g. anticline of the Stružec Field). Another advantage is multicolored presentation of depths and faults, which enables easier recognition of geological structures and potential traps for hydrocarbons. Errors and issues can occur during digitalization of contour lines, selection of the appropriate algorithm and those ones that arise when model is created. Low error between two approaches indicates accuracy of digitalization of data and subsurface modelling. Uncertainty models (maps of statistical percentage deviation) were made in the Petrel Software for the display of the deviation between handmade maps and Petrel models for each E-log marker and one pre-Neogene top.
Authors and Affiliations
Tomislav Baketarić, Marko Cvetković
Keywords
Related Articles
- EP ID EP30086
- DOI -
- Views 210
- Downloads 2
ŽIVA U ZRAKU IZNAD URBANIH I INDUSTRIJSKIH DIJELOVA GRADA ZAGREBA
Posljednjih godina grad Zagreb se susreće sa značajnim ekološkim problemima zagađenja svih medija; vode, zraka i tla. Povremena i stalna praćenja koncentracije određenih anorganskih zagađivača u atmosferi izvode se već d...
DESIGN AND MECHANICAL INTEGRITY OF CO2 INJECTION WELLS
Geologic Sequestration (GS) is part of a process known as “carbon capture and storage (CCS)” and represents the process of injecting CO2, into deep subsurface rock formations for long-term storage. For injecting of CO...
DETECTION OF AN AIRPLANE BOMB BY GEOMAGNETIC TESTING OF THE »REDVIT« BUILDING IN SLAVONSKI BROD
An old abandoned building was examined in order to perform a restoration project. Due to the presence of a round opening in the roof and the fact that Slavonski Brod was heavely bombed in the last war, it was assumed tha...
CONTROL OF FRAGMENTATION BY BLASTING
The degree of fragmentation influences the economy of the excavation operations. Characteristics of blasted rock such as fragment size, volume and mass are fundamental variables effecting the economics of a mining operat...
OPTIMALNI POLOŽAJ OTKOPNE FRONTE U ODNOSU NA STRUKTURNI SKLOP (GRAFIČKA METODA PRIMJENOM RAČUNALA)
Diskontinuiranost stijenske mase kao jedno od osnovnih obilježja strukturnog sklopa obrađena je matematičkom i grafičkom metodom analize pomoću računala. Razvijen je matematički model za određivanje optimalnog položaja o...