Mapping Subsurface Structures - MSS

Discipline: Geology
Level: Foundation
Instructors who teach this course:
  • Mr. James D Morse


Related courses
Compressional and Transpressional Structural Styles - CPST
Structural Styles in Petroleum Exploration - ST
Analysis of Structural Traps in Extensional Settings - ESS
Structural and Stratigraphic Interpretation of Dipmeters and Borehole-Imaging Logs - SSI
About the course Designed For You will learn Course Content
About the course
Not just a collection of rules of thumb, this class presents the fundamental concepts and techniques required to accurately construct structure maps in 3D so that you will get the most out of your data. Principles and techniques are illustrated by solving numerous exercises by hand (with drafting tools and a calculator) using strategies and workflows analogous to those that participants will use back at the office using computers. Participants will be prepared to develop more accurate structural models of reservoirs, avoid dry holes, find new traps in old fields, extract the maximum information from exploration wells, and validate or recognize errors in existing interpretations. Dr. Richard Groshong's book, 3D Structural Geology, is included with the course materials.
Designed For
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.
You 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
Course Content
  • 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