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Logical, Systematic, Complete Print pdf
--------- DAY1 --------- INTRODUCTION Petrophysical Objectives and C&F Failure Entry Points PHYSICAL CHARACTER OF CARBONATES & FRACTURES
Contrasting Geological Origins Clastic vs. Carbonate Physical Differences Micropractical Dominant Minerals About Clay Minerals Clastic vs. Carbonate Diagenesis Effect on Pore Geometry, Porosity vs. Permeability, Resistivity Fracture Key Physical Properties & Controls Stress, Orientation, Spacing(D), Width(E) & Mean length(L) Carbonates & Wettability Is your reservoir non-strongly water wet? Check list Fracture-Matrix Interaction AM Practical Session: Physical Characteristics LUNCH Carbonate Classification Systems vs. Petrophysical Requirements Lucia's "Rock Fabric" approach, its derivatives and application In Defense of Lucia! Fracture Reservoir Classifications Fooled By Fractures Why Classification Systems are Crucial to C&F Petrophysics PM Practical Session: Classification Systems Application
--------- DAY2 --------- Morning: Daily Recap, Questions, Debate
IMPACT OF CHARACTER ON MEASUREMENT AND EVALUATION
Cheap Logs and Failure Entry Points Impact on Porosity Micropractical What is Carbonate "Effective" Porosity? Fracture Porosity Calculations Impact on Saturation Swrt, Swnmr, Swcr, Swpc, Swsig Impact on Permeability Impact on kpor, knmr, kcts Impact on Netpay Thickness Impact on Contacts & FWL
MISLEADING DATA
Fracture Well Tests Biased Routine Core Analysis Cheap Logs Tight Carbonates and Common Mineral Variations Low Rt, High Rt Conventional Log Analysis How to Understand Cheap Logs in Carbonates C&F Major Petrophysical Difficulties AM Practical Session: Fractures LUNCH
ACHIEVING COST-EFFECTIVE DATA ACQUISITION
Characteristics of C&F Cost-Effective Data The Principles & Application to C&F Reservoirs of: - Mud properties - Mudlog data - SP - Rxo - Miniperms - Whole core - Sonic Density Neutron - Water zones - Purpose designed well tests - Analogs - PetroDB - HFU/FZI - Magnetic Resonance (NMR) logs - Dielectric logs - Pulsed neutron (Sigma) logs etc PM Practical Session: Impact on Measurements & What To Do
--------- DAY3 --------- Morning: Daily Recap, Questions, Debate
POWERFUL DATA!
You must come to the course for this LONG LIST of Carbonate Powerful Data and How To Use It! Micropractical Relative Contribution of Different data types: Clastics vs. C&F The Key Questions Your Data Acquisition Program Must Answer
ACHIEVING FIT-FOR-PURPOSE QUICK-LOOK RESULTS
The basic problem for the Clastics petrophysicist Reminder: the reservoir, borehole, invasion, symbols, tools, principles, curves, petrophysical function QL Porosity density-neutron, sonic QL Reconciling nuclear and sonic porosities QL Common matrix problems QL Vugs QL Impact of vugs and fractures QL Variable cementation exponent (m) and prediction(s) QL Ro prediction QL saturation exponent (n) AM Practical Session: Achieving Cost Effective Data Acqusition LUNCH
QL Swrr (resistivity ratio) QL Logical reconciliation of Por, Sw QL HC detection Micropractical QL Fracture ID QL Essential Carbonate & Fracture evaluation techniques - recap PM Practical Session: A Carbonate Log Analysis
--------- DAY4 --------- Morning: Daily Recap, Questions, Debate
CARBONATE MATRIX EVALUATION
Key elements and Logical Information Flow: Pore geometry-Fluid distribution-Fluid flow Principles to remember What are GR, SP, DN separation telling you and how to use them Achieving accurate matrix properties and porosity in tight carbonates Carbonate m values - measure, understand, predict! More about m and vugs vs. fractures How to recognize pore geometry (m) variations from Cheap logs/Modern hi-tech logs/NMR/Cores/Special core/Water zones/Pulsed neutron logs/Carbon oxygen logs/Forgotten logs Micropractical Capillary Pressure: What is it? How it controls Sh, Cap. equilibrium in carbonates, Lab measures, Reservoir measures, Use in carbonate matrix evaluation QL Swpc (yes, quick-look cap.press Sw's are possible!) Swpc: Process summary Micropractical More about Rock types Carbonate Swcore AM Practical Session: Achieving Fit For Purpose QL Results LUNCH
NMR - the wasted resource Pore Throat Size Distribution vs. NMR. It's use in carbonate matrix evaluation Using NMR porosity bins quickly and effectively Movie Using Coates Bound Fluid concept in C&F's - reasons to be cheerful NMR permeability What is an acoustic Stoneley wave and is it useful? WFTs (MDTS etc) FWLs Movie Carbonate matrix evaluation Key Points Integrating matrix results in the C&F geo.model A Consistent Geological Model
FRACTURE EVALUATION AND FRACTURE MATRIX INTERACTION
Fracture evaluation - Process Fracture porosity and permeability equations Fracture finding data - Ranked PM Practical Session: Achieving Fit For Purpose QL Results, contd
--------- DAY5 --------- Morning: Daily Recap, Questions, Debate Fractures Modern Techniques More about Acoustic Stoneley waves Acoustic shear wave splitting - what is it and how to use it Movie Micropractical Image logs: resistivity, acoustic. Application to C&F evaluations Estimating Fracture-matrix interaction Fracture surpirses! Key questions for the Petrophysicist and geo.model Fractures: Summary, Key Questions, Key Recommendations Major Practical Session: How to use Carbonate Capillary Data: Look up tables, Sw-Ht functions, RCA, resistivity and geo.model integration
LUNCH Continue Cap.Press Practical Session
RECAP AND RECOMMENDATIONS
10 Common Systematic Errors which will Ruin your C&F geo.model C&F Key Recommendations for the Petrophysicist, Management and User of Petrophysical Results
Record of Daily Recaps Twice Daily Practical work sessions Each morning - Your considered questions and debate Abbreviations Key C&F technical papers References Charts
Being able to recognize, understand and treat the critical issues which threaten the C&F petrophysicist via the structured process detailed in this course, will give you fresh confidence and enthusiasm for your work as a C&F geoscientist.
If you love petrophysics you will love this course!
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