Bosnia Herzegovina: Geological Resources Digitization of Hardcopy Maps and Data Catalogue Simon Neal Dr. Emlyn Hagen

Transcription

1 Bosnia Herzegovina: Geological Resources Digitization of Hardcopy Maps and Data Catalogue 1 CLASSIFIED Simon Neal Dr. Emlyn Hagen

2 Goal Gather available data for exploration in BiH Convert hardcopy data in digital data Integrate digital data in database for practical use for Shell 2 CLASSIFIED

3 Mapping Integration Example Geological Map Each component provides data that needs to be integrated into a digital geo database, a few examples are shown below Process RAW input Data Geo reference scanned map control points (xy co ordinates) Digitise map features Data into Geo Database Features and schema are populated with the raw data from the map and brought together into a single related spatial database + Integrated Digital Map (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.gto 3D Modelling Package Maps Create any map you wish with any data Define schema and symbology for Lithology data = Define schema and symbology for Stratigraphy data + 3 CLASSIFIED

4 Integration Workflow Overview Raw Data Collect from various sources Dig. & Ref. Modernise data and apply format Shell CDS / EDM Archive & EP Catalogue Petrel Arc GIS Gravitas Basic data load and archive Create technical insight and data workability 3D modelling and interpretation Mapping / Spatial Database Visual wells database 4 CLASSIFIED

5 Raw Data Shell CDS / EDM Archive & EP Catalogue Digitisation Referencing Process Described in following slides Arc GIS Petrel Gravitas Integration Process Integration step would begin to relate all the data and organise for easy summary and interpretation. 5 CLASSIFIED Not described in these slides

6 Mapping Integration Example Geological Map Scan original paper map and split into component parts Surface features to generate digital schema and symbology Lithology to generate digital schema and symbology Lithology columns and Stratigraphy data, generate schema and digitize for model integration Extract cross section for Geo referencing and digitizing input to 2D and 3D mapping software Extract map for Geo Referencing and digitizing 6 CLASSIFIED Map information for metadata and further symbology link to Shell Standard Legend

7 Cross-Country-Mobility (CCM) and On-Road-Mobility calculation Movement Factors Point of Interest G&G HSSE Other Natural DEM Slope/Elevation Road Infrastructure Surface Geology Population Density Land Use, Farming, Forests GSM Coverage, Communications Hospitals Police Civil Defense Fire Brigade Water Wells, Mining Wells Mineral Mining Exploration Petroleum Exploration Military Ranges Nature Reserves Vehicle Specifications Ambulance Medical Treatment Geological Outcrops GSM Coverage Population density Slope Time distance map 7 CLASSIFIED

8 Resulting CAP Map CLASSIFIED 8

9 Petrel Integration Example Data Various data from basic formats to full 3D integration Petrel All data in one place; an interactive 3D interpretation and modelling workspace Map Data 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 of subsurface model, aids planning of wells and acquisition programs. Insight into structural model. Calibration of Geological data (Surface Geology, Structure, Seeps). Planning wells and acquisition programs. Surface geology as control points in 3D space Satellite imagery draped onto DEM with Surface geology control points. High resolution subset Well paths and horizon picks

10 Petrel Integration Example Data Various data from basic formats to full 3D integration Petrel All data in one place; an interactive 3D interpretation and modelling workspace Subsurface Data: Faults Sources: Standard file formats, ArcGIS Surface Faults Many 3D Fault Objects Organised 3D Faults 2D polygons QC and cleaned manually, input into fault model using custom script Timing, offset, orientation analysed. Groups created for easy interpretation Integrate data types to QC and improve data quality and interpretation Regional structural knowledge; maps, stress fields, plate movements Scanned and Geo referenced (in 3D) structural cross sections

11 Petrel Integration Example Data Various data from basic formats to full 3D integration Petrel All data in one place; an interactive 3D interpretation and modelling workspace Subsurface Data: Wells Sources: Standard file formats, Gravitas Paper Logs Gravitas Charts Petrel Well 1 Well 2 Well 3 Well 4 Well 5 Well 6 Well sections used for interpretation of horizons and formations 3D view of a well in Petrel, wire line data can be visualised in many ways. Detailed view of wireline log data: Natural Gamma, Density and Optical Televiewer