Spectrum 2000

SPECTRUM 2000 COURSE OUTLINE
c. 1978 - 2008 E. R. (Ross) Crain, P.Eng.
Rocky Mountain House, Alberta Canada T4T 2A2
403-845-2527 email usail
Updated 15 Oct 2007

Session SIX - GEOLOGICAL APPLICATIONS: STRUCTURE, STRATIGRAPHY, DIPMETER and IMAGE LOGS
Course Outline and Instruction Materials c. 1978 - 2008 E. R. (Ross) Crain, P.Eng.

Integrated Courseware Connecting Logs, Cores, Tests, Productivity, Cash Flow, and Seismic Petrophysics - Since 1973

Students in this class will have varied experience with logs, but need a clear understanding of the use of logs to aid definition of structure, stratigraphy, and electro-facies concepts to enhance their job skills. This seminar is supported by "Crain's Dipmeter Omnibus" (225 pages), a high quality PowerPoint presentation, and 2 or 3 days of instruction.

DURATION: 1 or 2 days - 8 or 16 Professional Development Hours (PDH)

DESIGNED FOR: Anyone who works with logs to determine geological structure and stratigraphy, or who wants to do more with their logs, or who works with other people who use logs:

Exploration and Production Geologists
Reservoir and Development Engineers
Log Data Processors and Analysts
Exploration Geophysicists and Data Processors
Geological, Geophysical, or Engineering Technologists
Managers and Entrepreneurs
Service Company and Consulting Personnel

SUMMARY: This semi-quantitative course covers all topics needed to understand dip log data acquisition, data processing, and presentation for use in dipmeter and image log analysis for both structural and stratigraphic uses. Interpretation limitations and processing options are stressed.

BENEFITS:

provides understanding of dipmeter and image log measurements
provides understanding of dipmeter and image log processing
gives insight into reservoir geometry and continuity
provides worked examples for further study
permanent reference material

SEMINAR OUTLINE:

DIPMETER / IMAGE LOG TOOLS
26.00 Introduction To This Chapter
26.01 Evolution of the Dipmeter Concept
26.02 Modern Dipmeters
26.03 Basic Continuous Dipmeter Calculations
26.04 Handling Correlation Closure Error
26.05 High Resolution Dipmeter
26.06 Handling Correlation Planarity Error
26.07 Determining Dip By Clustering and Pooling
26.08 Pattern Recognition Dip Calculations
26.09 Stratigraphic High Resolution Dipmeter

DIPMETER / IMAGE LOG CALCULATIONS
27.01 Formation Imaging From Dipmeters
27.02 Resistivity Microscanner Imaging
27.03 Dipmeter Advisor - An Expert System
27.04 Auxiliary Dipmeter Presentations
__1. Stick Plot
__2. Cylindrical Plot
__3. Schmidt Plot
__4. Azimuthal Frequency Plot
__5. Dip Removal Plot
27.05 Synthetic Dipmeter Curves
27.06 Dipmeter Calculations
27.07 Dip Subtraction and Rotation
27.08 True Stratigraphic and True Vertical Thickness
27.09 True Vertical Depth
__1. Tangential Method
__2. Average Tangential Method
__3. Balanced Tangential Method
__4. Mercury Method
__5. Radius of Curvature Method
__6. Minimum Radius of Curvature Method
27.11 Exercises

STRUCTURAL ANALYSIS 1 - Conventional Dipmeter Methods
31.01 Plate Tectonics - The Big Picture
31.02 Diastrophism - The Regional Picture
31.03 Subsidence and the Creation of Geosynclines
31.04 Folds and Faults
31.05 Petroleum Traps Formed By Structures
31.06 Analysis of Dipmeter Data For Structural Features
31.07 Choosing and Using Regional Dip
31.08 Deciding What The Patterns Mean
31.09 Classic Dipmeter Patterns On Arrow Plots -------- The Cook Book
31.10 Case Histories of Structural Analysis
__1. Unconformity
__2. Normal Fault with Rollover and Drag
__3. Normal Fault with Rollover and No Drag
__4. Normal Fault with No Rollover and No Drag
__5. Normal Fault with Drag and No Rollover
__6. Thrust Fault with Rollover and Drag
__7. Normal Fault with Rotation
__8. Normal Fault with Correlation to Unfaulted Well
__9. Complex Overthrust Faults
__10. Correlation in Thick Sand Sequence
__11. Angular Unconformity
__12. Growth Fault in Thick Sand Sequence
__13. Overturned Anticline
31.12 Exercises

STRATIGRAPHIC ANALYSIS 1 -
Depositional Environment
33.01 Rock Facies - Origin
33.02 Classification of Depositional Environments
33.03 Sedimentary Structures
33.04 Genetic Units
33.05 Marine Transgressive Overlap - Fining Upward Sequence
33.06 Marine Regressive Overlap - Coarsening Upward Sequence
33.07 High Energy Marine Deposition - Cylindrical Sequence
33.08 Curve Shape Patterns in Continental Sequences
33.09.Stratigraphic Traps
33.10 Grain Size
33.11 Dip Spread
33.12 Current Bedding
33.13 Curve Shape Analysis

STRATIGRAPHIC ANALYSIS 2 - Dipmeter Patterns
34.01 Dipmeter Patterns in Sedimentary Structures
34.02 Analyzing Dipmeter Patterns
34.03 Choosing Regional Dip
34.04 Subtracting Regional Dip
34.05 Deciding What The Patterns Mean
34.06 Sedimentary Models
34.07 Glacial Deposits
34.08 Alluvial Fan and Scree Slope Deposits
34.09 Sand Dune Deposits
34.10 Braided Stream Deposits
34.11 Meandering Stream Point Bars
34.12 Channel Cut and Fill
34.13 Delta Distributary Channels
34.14 Delta Front Distributary Mouth Bars
34.15 Tidal Channel Deposits
34.16 Beach and Shoestring Sands
34.17 Basal Unconformity Sands
34.18 Offshore Bars and Barrier Bars
34.19 Marine Shelf Sands (Blanket Sands)
34.20 Marine Shelf Carbonates
34.21 Reefs and Carbonate Banks
34.22 Turbidite Slumps
34.23 Classic Dipmeter Patterns For Stratigraphy - The Cookbook

STRATIGRAPHIC ANALYSIS 3 - Dipmeter / Image Log Case Histories
35.01 Case Histories
__2. Channel Cut and Fill 1
__3. Channel Cut and Fill 2
__4. Channel Cut and Fill 3
__5. Barrier Bar
__6. Unconformities
__7. Foreset Beds
__8. Cross Bedding
__9. Gouge
__10. Shale Dome
__11. Reef
__12. Channel with Foreset Bedding
__13. Sand Dunes
__14. Barrier Bar Mapping
__15. Unconformity
__16. Deep Water Clastic
__17. Channel Sand
__18. Braided Channel
__19. Sand Count
__20. Laminated Shaly Sand