Bosnia Herzegovina: Geological Resources Digitization of Hardcopy - - PowerPoint PPT Presentation
Bosnia Herzegovina: Geological Resources Digitization of Hardcopy Maps and Data Catalogue 27.07.2011 Simon Neal Dr. Emlyn Hagen 1 CLASSIFIED 30/08/2013 Goal Gather available data for exploration in BiH Convert hardcopy data in digital
27.07.2011 Simon Neal
30/08/2013 1 CLASSIFIED
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Geo‐reference scanned map 10‐12 control points (xy co‐ordinates)
Each component provides data that needs to be integrated into a digital geo‐database, a few examples are shown below
Digitise map features Define schema and symbology for Lithology data Define schema and symbology for Stratigraphy data
(links to well data and 3D model)
All data is accessible through ArcGIS and Shell global servers. A few mouse clicks gives access to all data in the system: Metadata – Map Name, Date, Type etc Features – Lithology, Age, Depositional Environment, Description Symbology – Feature colour /patterns can represent any data associated with it Extract Data – Area, Percentages, Statistics Export – e.g to 3D Modelling Package Maps – Create any map you wish with any data Features and schema are populated with the raw data from the map and brought together into a single related spatial database
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Shell CDS / EDM Archive & EP Catalogue
Collect from various sources Modernise data and apply format Basic data load and archive Create technical insight and data workability
Mapping / Spatial Database 3D modelling and interpretation Visual wells database
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Integration step would begin to relate all the data and organise for easy summary and interpretation.
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Scan original paper map and split into component parts
Extract map for Geo‐ Referencing and digitizing Extract cross section for Geo‐referencing and digitizing – input to 2D and 3D mapping software Lithology to generate digital schema and symbology Surface features to generate digital schema and symbology Lithology columns and Stratigraphy data, generate schema and digitize for model integration Map information for metadata and further symbology – link to Shell Standard Legend
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Movement Factors Point of Interest DEM Slope/Elevation Surface Geology Land Use, Farming, Forests Military Ranges Nature Reserves Road Infrastructure Population Density GSM Coverage, Communications Vehicle Specifications Hospitals Police Civil Defense Fire Brigade Ambulance Medical Treatment Water Wells, Mining Wells Mineral Mining Exploration Petroleum Exploration Geological Outcrops G&G Other Natural HSSE
GSM Coverage Population density Time distance map Slope 30/08/2013 7 CLASSIFIED
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All data in one place; an interactive 3D interpretation and modelling workspace
Exported from ArcGIS to Petrel
Geology Map Sheets High Resolution DEM Satellite Imagery Convert to point data and use as input to modelling process. Allows accurate surface calibration of horizons and details on structural model. Essential for depth calibration
planning of wells and acquisition programs. Insight into structural model. Calibration of Geological data (Surface Geology, Structure, Seeps). Planning wells and acquisition programs. High resolution subset Surface geology as control points in 3D space Satellite imagery draped onto DEM with Surface geology control points. Well paths and horizon picks
All data in one place; an interactive 3D interpretation and modelling workspace
Sources: Standard file formats, ArcGIS
2D polygons QC and cleaned manually, input into fault model using custom script Surface Faults Timing, offset,
Groups created for easy interpretation Many 3D Fault Objects Organised 3D Faults Regional structural knowledge; maps , stress fields, plate movements Scanned and Geo‐referenced (in 3D) structural cross sections Integrate data types to QC and improve data quality and interpretation
All data in one place; an interactive 3D interpretation and modelling workspace
Sources: Standard file formats, Gravitas
Paper Logs Gravitas Charts Petrel Well 1 Well 2 Well 3 Well 4 Well 5 Well 6 3D view of a well in Petrel, wire‐line data can be visualised in many ways. Detailed view of wire‐ line log data: Natural Gamma, Density and Optical Televiewer Well sections used for interpretation of horizons and formations