N249 Advanced Pore Pressure Prediction Workshop: Concepts, Mechanisms, and Workflows

Course Facts

Course Code:
N249
Duration:
4 days
Type:
Classroom
CEU:
3.2 Continuing Education Units
PDH:
32 Professional Development Hours
Certificate:
Certificate Issued Upon Completion

Summary

This advanced, hands-on workshop gives participants a strong understanding of the processes that generate overpressure in multiple dimensions and experience in predicting pressure and fracture gradient. The course evaluates the approaches to estimate trap integrity and linkages between pore pressure prediction and basin modeling. Participants also develop a greater understanding of pore pressure prediction in different tectonic environments (e.g. unconventional, thrust, and salt settings).

A better understanding of these concepts will allow the geoscientist to increase the likelihood of exploration success and decrease drilling and development costs.

Duration and Training Method

This is a four-day classroom course, which intersperses lectures with frequent practical exercises, and the use of web-based software and Excel worksheets to reinforce concepts. Approximately 60% of the course time is spent on lectures and 40% on PC-based exercises.

Participants will learn to:

  1. Characterize pressure based on limited data.
  2. Predict pore pressure in one dimension using multiple approaches.
  3. Predict pore pressure in two- and three-dimensions using centroid approaches.
  4. Interpret and model fracture gradient.
  5. Predict trap integrity by applying pore pressure concepts.
  6. Evaluate how basin modeling is used to predict pressure.
  7. Predict pressure in thrust belt environments.
  8. Predict pressure in unconventional basins.
  9. Assess the challenges of pore pressure prediction near salt.

This advanced workshop covers:

  • Characterization of pore pressure, overburden, and fracture gradient
  • Petrophysical pore pressure prediction
  • Seismic-based pore pressure prediction
  • Estimation of trap integrity
    • Mechanical seal
    • Capillary seal
  • Compositional and mineralogical controls on shale compaction
  • Workflows for predicting pressure in 2- and 3-dimensions
    • Protected trap analysis
    • Centroid-based pressure prediction
    • Techniques for predicting sand and shale pressures
  • Basin modeling and pore pressure prediction
    • Principles and assumptions
    • Input requirements
    • Output results
    • Limitations of existing software/data
  • Predicting pore pressure and stress in different environments
    • Compressional regimes
    • Unconventional (shale) basins
    • Salt environments
  • Well Design
    • Choosing intermediate casing points and mud programs
    • Choosing appropriate mudweights for control of shallow water flow
    • Drilling implications
    • Predicting wellbore under-balance and lost circulation situations
  • Limits of current petrophysical and seismic prediction / detection techniques

Who should attend

Geologists, geophysicists, petrophysicists, drilling engineers, and other subsurface technical staff who want to develop additional expertise in the latest techniques of predicting pore pressure and fracture gradients at the well scale and the basin scale.

Prerequisites and linking courses

Attendees should ideally have taken N013 (Overpressure in Petroleum Systems and Geopressure Prediction), and/or have a minimum of 2 years' experience in pore pressure prediction.

Persons who want to understand the impact of geopressure on petroleum generation and migration can take the Basic Application level course N010 (Geochemistry and Petroleum System Modelling).

Click on a name to learn more about the instructor

Peter Flemings

Related Subjects

Great refresher in pore pressure information. Loved the handout exercises as it made you pay attention and follow along.