Magnetotelluric and Controlled-Source Electromagnetic Methodologies for Geoscientists

The Magnetotelluric (MT) and Controlled-Source Electromagnetic (CSEM) methodologies course is meant to introduce a geoscientist to the physical concept of each electromagnetic measurements and to illustrate the added value of the integration of these methodologies for a better understanding of specific geologic targets in both marine and land environments.

 This course has also the objective to introduce the features of the Petrel Magnetotellurics and of the Petrel Controlled-Source EM plugins for the display, pre-conditioning, QC, modeling and interpretation of electromagnetics data.

 The course includes a theory section intended to present the physical principles of each electromagnetic discipline and a basic introduction to the data acquisition process.

Most of the course is focused on the introduction of the EM data processing and interpretation workflow through the presentation and the explanation of the Petrel plugins features by means of practical examples.

The explanation of the software features is interleaved with practical exercises to allow the attendees practicing with the Petrel plugins.

• Agenda
• Audience
• Prerequisites

• Agenda

  Day 1

   Theory Magnetotellurics

  • Basic concepts
  • Data processing
  • Modeling and interpretation

  Plug-in training  MT core

  • MT survey: creation & actions
  • Data import:
    • o Data version concept
    • o Rotation
    • o Source datum
  • MT survey:
    • o Site visualization on 3D window
    • o Geometrical filters
  • [Exercises]
  • MT window/QC tools
  • Data navigator, viewing and legends
  • Interactive data selection and cursor tracking
  • Data editing tools
  • [Exercises]

  Day 2

   MT core

  • Maps
    • o Maps creation, display and editing
  • Pseudo-sections
    • o Profile and profile window management
    • o Pseudo-section creation, display and editing
    • o [Exercises]

  MT 1D

  • Basic concepts (1D modes, hierarchy, actions)
  • 1D Model creation, display and editing
  • 1D Inversion workflow
  • Conversion to wells and well log reduction
  • Well log reduction
  • [Exercises]

  Day 3

   MT 2D

  • Model geometry building and property population
  • 2D MT forward and inversion job setup and execution
  • Inversion QC
  • [Exercises]

  MT 3D

  • Model geometry building and property population
  • 3D MT inversion setup
  • Omega system: EM_MODELING SFM setup
  • Inversion results data import
  • Inversion QC

  
   

  Day 4

   Plug-in training  CSEM core

  • CSEM survey: creation & actions
  • Data import:
    • o Data version concept
    • o Rotation
    • o Source datum
  • CSEM survey:
    • o Site visualization on 3D window
    • o Geometrical filters
  • [Exercises]
  • CSEM window/QC tools
  • Data navigator, viewing and legends
  • Interactive data selection and cursor tracking
  • Data editing tools
  • [Exercises]

  Day 5

   CSEM core

  • Maps
    • o Maps creation, display and editing
  • Pseudo-sections
    • o Profile and profile window management
    • o Pseudo-section creation, display and editing
    • o [Exercises]

  CSEM 1D

  • Basic concepts (1D modes, hierarchy, actions)
  • 1D Model creation, display and editing
  • 1D Inversion workflow
  • Conversion to wells and well log reduction
  • Well log reduction
  • [Exercises]

  CSEM 2D

  • Model geometry building and property population
  • 2D CSEM forward setup and execution
  • Inversion QC
  • [Exercises]

  CSEM 3D

  • Model geometry building and property population
  • 3D CSEM inversion setup
  • Omega system: EM_MODELING SFM setup
  • Inversion results data import
  • Inversion QC

• Audience

  Geophysicists, Geologists and Geoscientists working with electromagnetic data (MT or CSEM)

• Prerequisites

  General knowledge of geophysics or geology

  Petrel fundamental course or familiarity with Petrel interface and core functions

   

• Prerequisites