FE1: Basic Log Interpretation

2023 Programme
3 Days | £2150+VAT per attendee
Course Aims
To provide an overview of Quick-Look Interpretation from traditional open-hole wireline and LWD logs.
This practical course uses worked examples and a final Case Study to allow students to practise and become familiar with basic geological and reservoir evaluation techniques.
Target Audience
Wellsite Geologists, Operations Geologists, Reservoir and Development Geologists, Drilling Engineers, Mudloggers, LWD Engineers, Directional Drillers, Support Staff.
Delegates Will Learn:
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About the reasons for geophysical logging and information required
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About the basic theory of operation of traditional open hole logging tools
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How to interpret lithology from well logs
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How to identify reservoir rocks and the location and type of fluids present
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How to determine Porosity from Sonic, Density and Neutron Porosity tools and make simple corrections for lithology, shaliness and gas effects
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How to identify hydrocarbon-bearing zones and calculate water saturation using the basic Archie Formula while making corrections for environmental effects
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About the differences between Wireline and LWD tools.



Course Outline
Obtaining Well Logs
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The Nature of Well logs
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Conveyance Methods
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Borehole Environment
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Invasion
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Log Scales and Presentation
Theory of Operation
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Gamma Ray
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Resistivity
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Neutron Porosity
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Density
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Sonic
Log Interpretation
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Log QC
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Lithology Determination
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Gamma Ray and S.P.
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Density/Neutron
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Crossplots
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Facies and Environments
Reservoir Evaluation
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Recognition of Permeability
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Identification of Hydrocarbons
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Fluid types & contacts
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Porosity and Permeability Determination
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Water Saturation (Sw) estimation
Wireline Logs: Basic Concepts
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Types of Open Hole Logs
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Information Required
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Log Header
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Relationships
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Borehole Environment
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Invasion Profiles
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Rw & Rmf
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Porosity and Permeability
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Resistivity and Water Saturation
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Temperature Corrections
Wireline Logs: Theory of Operation
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Spontaneous Potential
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Gamma Ray
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Resistivity Logs
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Laterologs
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Induction Logs
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Microresistivity Logs
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Neutron Porosity
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Sonic
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Formation Density
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Dipmeter Tools
MWD & LWD Logging
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Theory of Operation
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Transmission Systems
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Tool Configuration
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Sensors
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Operating Procedures and Practice
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MWD/Wireline Response Comparison
Geological Interpretation
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Log QC Procedures
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Identification of Lithology
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Environment and Facies
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Identification of Permeability
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Identification of Porosity
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Geosteering Applications
Reservoir Evaluation
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Quick Look Porosity Calculations
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Identification of Hydrocarbon Bearing Zones
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Hydrocarbon Type Evaluation
Saturation Calculations
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Archie
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Shaly sands
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Carbonates
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Resistivity Ratio
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Cross-Plots