TypeOnsite Course
DateJan 6, 2020 - Dec 12, 2020
PlaceHouston, TX
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A practical state of the art Course designed for the well drilling planning and construction/operation team


  1. Develop a comprehensive understanding of geo-pressure generation, occurrence, and detection in real time
  2. Focused practices on real time detection of pore pressure relative to mud pressure
  3. Understand the practical methodologies for estimating pore pressure in shale, sandstones, and in carbonate with the necessary caveats for each lithology.


Who should attend?

Anyone who is connected with well construction from the planning phase to post mortem including drillers, tool-pushers, drilling engineers, geologists, crew members, and service personnel.

Course Materials

The course will be delivered using a mixture of power point presentation, a course manual, and some use of software tools.


Course Content:

Day Topics
1 Fundamentals of Geopressured Occurrence

·        The well planning process

·        The role of pore pressure prediction on well planning

·        Geopressured Concepts and Basic Definitions

·        Hydrostatic Pressure vs Water Salinity

·        Normal Pressure, Subnormal Pressure, Abnormal Pressure

·        Overburden Pressure

·        Abnormal Pressure Causes (Under compaction, Aqua thermal Expansion, Clay Digenesis, Tectonics, others)

2 Pore Pressure Detection While Drilling

·        Abnormal Pressure Indicators While Drilling (Gas (trip, background, connection, ROP (d-exponent), Cuttings and Caving.

·        Caving analysis from pore pressure and geomechanics perspectives

·        Abnormal Pressure Indicators (Logging and Seismic)

·        Case studies

3 Basic Pore Pressure Principles and Calculations

·        Effective Stress (Terzaghi’s Equation)

·        Effective Stress versus depth for different Water Depths

·        Overburden Gradient Calculation

·        Pore Pressure Models

·        General Velocity / Effective Stress Relationship

·        Normal Trends

·        Secondary Pressuring (Unloading)

4 Pore Pressure Interpretation Pitfalls and Uncertainty

·        Variances in pressure predictions – uncertainties

·        Pressure regressions models and geologic causes

·        Pressure Compartments

·        Structural Uplift (Centroids)

·        Anisotropy in pore pressure and logging responses

·        Uncertainty analysis


5 Fracture Gradient

·        Fracture Gradients Models and Assumptions

·        Non-Conventional Fracture Gradient Estimation

·        LOT interpretation

·        Class Projects

·        Pore pressure prediction from seismic data alone

·        Pore pressure prediction in real time

·        Post mortem pore pressure analysis


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