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P1: Formation Pressure Evaluation
2024 Programme
3 Days | £2150+VAT per attendee
Course Aims
To familiarize delegates with the challenges of planning and drilling wells in a safe operating window to minimise Health and Safety Incidents and Non-Productive Time.
To provide practical instruction in pore pressure and fracture pressure prediction to produce PPFG plots.
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Target Audience​
Wellsite Geologists, Operations Geologists, Reservoir and Development Geologists, Drilling Engineers, Mudloggers, LWD Engineers, Directional Drillers, Support Staff.
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Delegates Will Learn:
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How to calculate and plot normal hydrostatic pore pressure and overburden pressure
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About the mechanisms that generate abnormal pore pressures
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How to calculate fracture pressure from LOT data and mathematical models
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How to produce PPFG plots from offset well data
Course Outline
Introduction
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Well Planning Requirements
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Safe Operating Window (PP-FG)
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Pore Pressure prediction and detection
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Wellbore Stability
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Fracture Pressure
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Pressure Concepts and Gradients
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Definitions and Normal Pore Pressure
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Overburden Pressure Calculations
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Pressure Gradient Calculations
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Fracture Pressure Estimations & Modelling
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Abnormal Pressure
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Causes of Abnormal Pore Pressure
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Pore Pressure Estimates from:
Dxc, ROP, Mud-Gas relationships -
Petrophysics
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Borehole Stability
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Origin of Abnormal Pore Pressure
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Compaction Disequilibrium
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Aquathermal Processes
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Clay Diagenesis
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Stratigraphic Processes
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Tectonic Processes
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Fluid Expansion
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Fracture Pressure & Well Planning
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Evaluation of Rock Fracture Pressure:
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Leak-Off Tests
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Mathematical Modelling
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Borehole Stability
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Kick Tolerance
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Well Control Procedures
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Well Planning Issues
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HP/HT Drilling: Definitions & Challenges
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Definitions of HPHT
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High Fluid Density
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High Formation Temperature
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Narrow Operating Windows
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Managed Pressure Drilling
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Formation Pressure Evaluation
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Fundamentals
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Hydrostatic Pressures
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Pressure Gradients
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Elevations and Datums
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Formation Balance Gradient
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RFT data and PZ plots
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Overburden Pressure Gradient
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Data Sources
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Calculation methods
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Practical Formation Pore Pressure Evaluation
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Seismic Data
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ROP and Dxc
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Formation Gas Evaluation
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Borehole Behaviour
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Drilling Parameters
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Drill Cuttings and Cavings
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Geothermal Gradients
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Wireline/MWD Data
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Health, Safety, Security, Environment
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Requirements and Well Planning
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Recent Incidents
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Operator Responsibilities
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Individuals’ Responsibility
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General Duty
Pore Pressure Methods
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Trend Line Methods
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Ratio
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Eaton
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Equivalent Depth
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Unloading (Bowers)
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Fracture Pressure Gradients
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Leak-off Tests
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Mathematical Modelling
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High Angle well
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