Transcript
Intro to Geolog6.6
Darren Smith
Geolog6.6-The Fast Lane to Formation Evaluation
• Petrophysical Analysis, Well Data Management, & Geological Interpretaion
Geolog6.6-Course Objective
• “This introductory course provides the geoscientist and technician with a working knowledge of Geolog. The course provides an overview of project and data structure; manual and graphic editing, data transfer, utility modules, cross-sections, working in multi-well projects and single well layouts. The course is centered around hands-on exercises, which illustrate commonly used features and functionalities”
• Courses focusing on Deterministic Petrophysics, Wellbore Geophysics, Facimage, and other subjects are available. Please visit the Customer Hub to view scheduled courses.
Course Outline: Geolog6.6 & Well Log Anaylsis
• Day One:• Preliminaries: Create & manage projects.
Geolog6.6 behavior. Help?• Data Loading: Std. & Custom Formats• Data QC & Editing: Merge, depth, &
more• Well Log Anaylsis
Course Outline: Geolog6.6 & Well Log Analysis
• Day Two• Project Analysis, “The Big Picture”• Analyze Project Dataset• Develop Project Basesmap• Determine Candidate Wells for Cross
Section• Build, Correlate, & Interpret a Cross
Section• Generate Product & Present Findings . . .
Geolog6.6 Workflow by Application
Section 1. MAIN MENU-Geolog6.6 Basics
Section 1. MAIN MENU-Geolog6.6 Basics
• Launching Geolog• 1. PPM (Paradigm Product Manager)• 2. Command Prompt: geolog6.6/bin/geolog6• Open Existing Project• Project Structure• Deregister an Existing Project• Create a New Project• Geolog Behavior• Help• Feedback
Launching Geolog6.6-Paradigm Product Manager
Geolog6.6 Splash Screen
Open an Existing Project
• Project selection GUI lists
projects available to the user • Tabs at top can delimit project
parameters• Possible to search for existing
projects• Naming convention:
project_name@host
Geolog Basics pg. 61
Geolog6.6 Project Directories
• /Your_Project/• /bin/ executables specific to the project• /data/ houses raw data files; LAS, ASCII, DLIS, TIF• /layouts/ log layouts, cross plots, histograms• /loglan/ log language, user created code to process
logs• /plots/ graphic files for plotting or other applications• /reports/ pay summaries, info on data loads, .txt
& .pdf• /specs/ data loading specs, module parameters• /wells/ well data stored as *.well & well lists
Geolog Basics pg. 6
Deregister a Project.
Useful for:• Whenever analysis is completed or abandonment occurs• Limiting load on server & network• Make the project & data less visible to others
Geolog Basics pg. 65
Deregister a Project
• DOES NOT delete the data
• Project directories & data remain in original location
• Data is not visible by geolog until the project is recreated (reregistered)
Geolog Basics pg. 65
Create a New Project
• All names are suitable• Avoid use of “@”• Use an “_” in place of
spaces• Public & private projects
Geolog Basics pg. 59
Geolog6.6 Behavior
• Supported OS’s: Solaris, Irix, Linux, Win2K/XP• Geolog6.6 now runs windows native!• Developed on Unix & retains Unix behavior• MB1: select item• MB2: drag item & duplicate• MB3: options• MDI-Cursor position/attribute is reflected in all open
views/windows• Browser Bar project influences all sub-apps• Feedback
Geolog Basics pg. 7
Geolog6.6 Help
• Indexed online help• Search for keywords &
phrases in documentation• Adobe6.0 recommended
Geolog Basics pg. 46
Geolog6.6 Feedback
• Running dialog of all executions & errors• User Configurable• Great for trouble-
shooting
Geolog Basics pg. 35
Section 2. CONNECT Data Loading
Section 2. CONNECT-Data Loading
• Load & Unload Data to & from Geolog Projects• Load Standard Formats: LAS, LIS, TIF, BIT• Load Custom Formats: ASCII, Geolog ASCII• Transfer Data From Project to Project• Establish Mnemonic Conventions• File Conversions: LAS to TIF & others• Load & Unload Data to & from non-• Geolog Projects (OW & Geoshare)
Connect-Unload LAS3 file
• Choose: Connect-Unload
• Select a Well & Unload
format
Connect pg. 41
Unloading a LAS3 Format File
• Pick sets/curves & start unload Connect pg. 45
ASCII LOAD.TXT, CSV, DAT, etc.
• Load data files created in a spreadsheet application
• User Defined; sets, & curves
Connect pg. 25
Project to Project (copy data)
1. Choose Project to Project
2. Select input project (stars) and desired wells to copy. Then select target project (moons).
Connect pg. 48
Project to Project (copy data)
• Select import sets & curves
Connect pg. 48
Connect-File to File (convert file formats)
Connect pg. 51
Connect-File to File, LAS to LIS/TIF
Connect pg. 51
Section 3. WELL-Data QC
Section 3. WELL-Data QC
• Create Log Layouts to View Data• Append Runs/Merge Logs• Despike• Normalize • Resample• Fill Missings• Environmental Corrections
Section 3. Well-Log Layout
Well pg. 12
• 11 Track Types• Datum to MD, TVD,
TVDSS, etc.• Use Layouts for
Graphical Editing• Used for Formation
& Dip Editing
Merge Runs
Well pg. 81
• Graphical merging of logs
• Merge from end to end or splice in sections of logs
Despike Logs (Curve Insert)
Well pg. 85
• Smooth / despike curves with mouse graphically
• Module Interface: General-Log Edit-Despike
Normalize Logs-Using GR Histogram & Linear Transform
Model Well Well to Edit w/ Ghost of Model Well
Edited Well Normalized to Model Well
(not in tutorial, see Help-Xplot, Linear Transform)
Resample
Well pg. 131
• Irregularly sampled data• Reduce sampling rate• Reduce .well file size
Fill Missings
• Performs a linear interpolation across gaps
• Can occur with LWD data
(not in tutorial, use Well-General-Log Edit-Fill Missings)
Environmental Corrections
• Environmental corrections available for common logging tools
• Useful for older logs w/out corrections or as a comparison tool to achieve best correction e.g. SS/LS/DOL?
(not in tutorial, use Well-Petrophysics-Environmentals)
Section 4. WELL-Log Analysis
Section 4. Well Log Analysis
• Log Scanning for Zones of Interest• Using Basic Well Log Analysis method of Asquith and
Krygowski
Source: Basic Well Log Analysis. Asquith & Krygowski 2004
Log Scanning-Step 1. Find Clean Zones
• Mudlogs• Gamma Ray• SP• VSH (GR & SP)
Log Scanning- Sandstones or Carbonates?
• Consult Mudlog• Core Data• Offset Wells• Depositional
Environment
Log Scanning-Resistivity
• Scan Resistivity for High Values
• Spot Shallow & Deep Separations
• Invasion-Asses Permeability
Log Scanning-Evaluate Porosity
• NPHI-Possible Gas Effect• DPHI• SPHI • PHIE• Define Zones of Interest
Section 5. SECTIONMulti Well Analysis
Section 5. PROJECT-Multi-Well Anaysis
• Tool to Visualize “The Big Picture”-Mapsheet• Analyze Project Dataset-Well Catalog• Contour Well Data• Determine Wells for Cross Section-Well Catalog
& Mapsheet
Mapsheet Uses
• Project Overview
• Post/Manage Cultural Data
• Create X- Sections
• View Well Path projections
• Contour Data• Graphically
Select Wells to Process
Project pg. 15
Well & Section Catalog
• Text based project management
• Insert, copy, & delete of wells, sets, logs, & sections
• Search utilities• Edit well header
data• & more
Project pg. 49
Well & Section Catalog Search Functions
• Search project database for specific information• Build search criteria to constrain results• Uses: Flag data, specify wells to process, use as
starting point for processing
Project pg. 52
Contour Well Data. (Malabar Fmn. Thickness)
Project pg. 41
Section 6. Section-Multi Well Correlation
Section 6. SECTION-Multi-Well Correlation
• Construct a Cross Section Graphically • Spatially Define a Cross Section• Establish Correlations• Interpret Cross Section• Manipulate & Manage Existing Cross Sections
SECTION-Define a Section Graphically from Mapsheet
• Insert sections using the mouse
• Project multiple wells to the section
• Well spacing is fixed
Section pg. 3-6
SECTION-Define a Section Spatially.
Section pg. 11
• Allows for user defined spacing
SECTION-Establish Correlations
Section pg. 15
• Correlate any tops type interpolated curves
• Datum to a depth or formation
• Structural & stratigraphic cross sections
SECTION-Add User Interpretations
Section pg. 32
Section 7. ARTIST-Graphic Utilities
Section 7. ARTIST-Graphic Utilities
• Create Standard Log Header• Create Fill Pattern• Create Marker• Create Montages
ARTIST-Standard Well Header w/ Variable Text
• Header format obtains data from active well
• Well header, constants, & other data is available
• Use header for all projects & wells
Artist pg. 45
ARTIST-Create Fill Pattern For Use in Layouts, Cross Sections, & Artist Images
Artist pg. 42
ARTIST-Create Marker For Use in Layouts (point tracks), Xplots, & Artist Images
Artist pg. 40-44
ARTIST-Create Montage to Present Findings
Artist pg. 51
Section 8. Workflow Review & Summary
Section 8. Workflow Review & Summary
Geolog6.6 Project Directories (a review)
• /Your_Project/• /bin/ executables specific to the project• /data/ houses raw data files; LAS, ASCII, DLIS, TIF• /layouts/ log layouts, cross plots, histograms• /loglan/ log language, user created code to process
logs• /plots/ graphic files for plotting or other applications• /reports/ pay summaries, info on data loads, .txt
& .pdf• /specs/ data loading specs, module parameters• /wells/ well data stored as *.well & well lists
Geolog Basics pg. 6
Section 8. The Product
• Archives• Means for Asset Management• Standardized Data Formats-Layouts, Xplots,
Histograms• EPOS3 Datastore: Data is Available to All
Paradigm Products
Advanced Geolog Courses Offered
• Deterministic Petrophysics• Facimage• Geomage• Geophysics• Geosteering• Customized Training
The End.Thanks!
top related