Managing Survey Data from Legacy to Cutting Edge Technology
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1 1
2 Managing Survey Data from Legacy to Cutting Edge Technology Presented By: Cindy Lang, Natasha Spokes and Amanda Tingley
3 Outline History of Seisland Seismic Survey Timeline Newest Technology 3D Scanning UAV Post-Survey Data Management Seismic Database Cleanup Seismic Data QA/QC Conclusion 3
4 History of Seisland 1980 Garvin Geck founded Seisland as a oneman survey crew 2001 Ed Miyagishma joined as partner and VP Operations Today Seisland has a team of up to 80 field and office staff. 4
5 5
6 Seisland Today GIS Consulting Field Mapping Pipeline Locating Line Construction Supervision Field Survey Services 6
7 7
8 Seismic Surveying Timeline 8
9 9
10 Survey & Mapping Project Scouting Control Surveys Topographic Surveys Field culture mapping Geographic Information Systems/AutoCAD 10
11 LiDAR & Aerial/Satellite Photography Cover large areas Expensive to acquire or archive may be out of date 11
12 3D Laser Scanning Average scan file ~100MB 12
13 UAV/UAS Orthophotos Digital Surface Model (DSM) point cloud 13
14 14
15 Post-Survey Data Management Seismic Database Cleanup Seismic Data QA/QC 15
16 Seismic Cleanup Overview Purpose: ensure database contains accurate data Information items linked to respective seismic line Navigation has been verified Vendor Licensed Proprietary 16
17 Navigation Cleanup Example Vendor Licensed Data Spatial Comparison Scenarios: Vendor spatial and database spatial are the same Vendor spatial is longer than database spatial Vendor spatial is shorter or completely different than database spatial Challenges Vendors may not cooperate with re-issued data requests 17
18 Navigation Cleanup Example Vendor spatial and database spatial are the same 18
19 Navigation Cleanup Example Vendor spatial is longer than database spatial 19
20 Navigation Cleanup Example Vendor spatial is completely different than database spatial spatial 20
21 Seismic Cleanup Example Proprietary Data Spatial Comparison Scenarios: Acquired navigation and database navigation are the same Acquired navigation is longer than database navigation Acquired navigation is shorter or completely different than database navigation Challenges Missing data is generally irreplaceable 21
22 Seismic Data QA/QC Overview Purpose: ensure data entering the now cleaned up database has high integrity Load new data to database using client s standards 22
23 Data QA/QC Workflow Example Acquire data from client Review and compare support documents for respective line 23
24 Data QA/QC Workflow Example Confirm coordinate reference system Verify conversion between lat/long and projected X/Y values 24
25 Data QA/QC Workflow Example 25
26 Data QA/QC Workflow Example Measure spatial offset 26
27 Data QA/QC Workflow Example Assign positional confidence to navigation Navigation and SegY X/Y values have an offset <? meters Navigation has an offset from SegY X/Y values >? meters Navigation cannot be verified using support documents 27
28 Conclusion 28 Questions?
29 A POWERFUL INTEGRATED INFORMATION PACKAGE Contact: Amanda Tingley Natasha Spokes Seisland Surveys Ltd Flint Road SE Calgary Alberta Canada T2H 1G2 Tel:
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