Oil & Gas and Petroleum
Mapping Subsurface Structures

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Mapping Subsurface Structures Course
Introduction:
This course covers the essential ideas and methods needed to precisely create structure maps in 3D, ensuring that you get the most out of your data. It's not just a list of general guidelines. Solving multiple exercises by hand (with drafting tools and a calculator) and applying tactics and processes similar to those that participants will use back at the business using computers serves as an illustration of concepts and methodologies.
Course Objectives:
Participants will learn how to:
- Recognize common contouring pitfalls
- Find thickness in deviated wells
- Use thickness maps to interpret structure
- Construct predictive cross sections
- Apply the best techniques for projecting data
- Make fault maps and integrate them with horizon maps
- Build a complete 3D interpretation
- Recognize valid and invalid fault surfaces
- Interpret folds and faults from dipmeters
- Construct juxtaposition (Allan) diagrams for fault trap and seal analysis
- Map structures with multiple overlapping faults
Who Should Attend?
Development geoscientists and those exploring mature areas; early-career geoscientists and technologists who make structure maps; those who need to judge the validity of maps and cross sections.
Course Outlines:
- Manual and computer contouring techniques
- Using dip in mapping
- Different measures of thickness
- Thickness in deviated wells
- Thickness maps
- Dip-domain cross sections
- Data projection
- Trend and plunge of folds on tangent diagrams
- Composite-surface maps
- Fault shapes and displacement distributions
- Relationships between stratigraphic separation and heave & throw
- Faults on isopach maps
- Mapping across faults
- Structural quality-control techniques
- Multiple-surface map compatibility
- Map validation using implied fault contours
- Finding faults and fault orientations with SCAT analysis of dipmeters
- Soft linked and hard linked faults
- Relay and branching fault patterns
- Mapping sequential cross-cutting faults