WellCAD Basics - Advanced Logic Technology

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456 - APPENDIX A www.alt.lu Mean Dip & Azimuth: Average azimuth and average dip angle are calculated from all selected structure picks found in each depth interval covered by the Polar & Rose diagram box. The values are displayed inside a circular symbol (average azimuth on the top, average dip angle below). Additionally a vector pointing to the average azimuth is shown. Mean Azimuth & Dip display Vector Dip & Azimuth: This type of diagram provides a graphical presentation of cumulatively added unit vectors of azimuth or dip data. Adding the vectors from top to bottom (or vice versa) even small changes of structural dip or azimuth over the investigated depth interval can be visualized and detected. Vector Azimuth Plot
APPENDIX A - 457 Woodcock Diagram: The Woodcock diagram can be used to characterize the overall shape of a distribution of dips. Expressing each dip direction and angle as a vector, a matrix containing the sums of squares and cross products of the direction cosines can be created. From this matrix the Eigenvectors and Eigenvalues (E1, E2, E3) are determined. The meaning of the Eigenvectors can be best understood when comparing with the concept of moments of inertia in physics. Imaging that each pole to a dip placed on the surface of a sphere would represent an equal weight. The moment of inertia of the sphere will be low about the axis that goes through a cluster of poles but high about an axis that is far away from the cluster. In general the minimum moment of inertia can be obtained for an axis passing through the average orientation, the maximum obtained 90° away from the minimum along an axis corresponding to the best fit girdle. Eigenvector 1 determined from our matrix corresponds to the largest moment of inertia and estimates the pole to the best fit girdle. Eigenvector 3 corresponds to the smallest moment and estimates the centre of the densest cluster, similar to a mean direction. Eigenvector 2 corresponds to the emptiest part of the best fit girdle. The Eigenvalues E1, E2 and E3 (where E1 > E2 > E3) can be used to describe the overall shape of a distribution of poles. The K parameter - a ratio of ln(E1/E2) / ln(E2/E3) - describes the scattering of the distribution. The figure below shows a sample of a Woodcock diagram derived from the poles shown in the polar projection plot.
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4.4 Book 1 - Basics
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Introduction ......................
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Comment Log .......................
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Introduction INTRODUCTION - I Licen
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INTRODUCTION - III running a Flexne
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Book 1 - WellCAD Basics BOOK 1 - WE
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BOOK 1 - WELLCAD BASICS - 3 The Tit
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1.2.1.1 Reader Module BOOK 1 - WELL
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1.2.3 Draft, Presentation and Print
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1.2.4.1 Switching between documents
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BOOK 1 - WELLCAD BASICS - 11 Usuall
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Display Styles: 1.3.1.3 Depth Colum
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1.3.1.5 Marker Log Display Styles:
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1.3.1.7 CoreDesc Log Display Styles
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1.3.1.9 Strata Log Display Styles:
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Data Format: BOOK 1 - WELLCAD BASIC
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1.3.1.12 Full Wave Sonic Log Descri
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BOOK 1 - WELLCAD BASICS - 25 1.3.1.
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1.3.1.16 Analysis Log Display Style
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1.3.1.18 Structure Log Display Styl
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1.3.1.19 Breakout Log Description:
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1.3.1.21 Engineering Log Descriptio
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1.3.1.23 Polar & Rose Log Descripti
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1.3.1.25 3D Log Display Styles: Des
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BOOK 1 - WELLCAD BASICS - 39 An alt
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1.3.2.3 Naming Logs Right click on
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Tick to enable snap to specified mu
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To display the Document Layout Bar:
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After aligning logs side-by-side In
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BOOK 1 - WELLCAD BASICS - 49 Log wi
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1.3.2.7 Depth Shifting Logs BOOK 1
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1.3.2.9 Extending Logs 1.3.2.10 Cut
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BOOK 1 - WELLCAD BASICS - 55 � Pr
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1.3.2.13 Comparing Log Data - The T
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1.3.2.15 Find and Replace data BOOK
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BOOK 1 - WELLCAD BASICS - 61 Check
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General settings: Check to hide the
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1.3.3.2 Main Settings Background: B
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BOOK 1 - WELLCAD BASICS - 67 Or �
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1.3.3.4 Copy Settings between Logs
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1.4 Basic Document Editing 1.4.1 De
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BOOK 1 - WELLCAD BASICS - 73 Note:
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BOOK 1 - WELLCAD BASICS - 75 measur
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1.4.2 Data Import BOOK 1 - WELLCAD
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To use an alias table during import
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BOOK 1 - WELLCAD BASICS - 81 Use Al
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List of data channels contained in
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BOOK 1 - WELLCAD BASICS - 85 Previe
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BOOK 1 - WELLCAD BASICS - 87 repres
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Click to select the channels to imp
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BOOK 1 - WELLCAD BASICS - 91 config
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Preview of the embedded configurati
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Selected Files: BOOK 1 - WELLCAD BA
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BOOK 1 - WELLCAD BASICS - 97 The DL
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BOOK 1 - WELLCAD BASICS - 99 WellCA
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BOOK 1 - WELLCAD BASICS - 101 The d
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Switch between header and trailer s
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Empty dynamic text fields Interacti
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BOOK 1 - WELLCAD BASICS - 107 Dialo
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BOOK 1 - WELLCAD BASICS - 109 1.4.4
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Enabled when data overlap must be h
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BOOK 1 - WELLCAD BASICS - 113 Gamma
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1.4.5 Data Export BOOK 1 - WELLCAD
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1.4.5.2 Generating a LAS File BOOK
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BOOK 1 - WELLCAD BASICS - 119 � S
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1.4.6.2 Page Setup BOOK 1 - WELLCAD
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1.4.6.3 Print Preview and Print BOO
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BOOK 1 - WELLCAD BASICS - 125 Const
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Formula for Vsh BOOK 1 - WELLCAD BA
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Code recorded as data, it refers to
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BOOK 1 - WELLCAD BASICS - 131 Examp
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BOOK 1 - WELLCAD BASICS - 133 Conta
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1.5.5 Setting up Classifications BO
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BOOK 1 - WELLCAD BASICS - 137 The f
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BOOK 1 - WELLCAD BASICS - 139 Dialo
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BOOK 1 - WELLCAD BASICS - 141 Litho
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BOOK 1 - WELLCAD BASICS - 143 If We
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1.5.11 Correcting Data for Borehole
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Note: 1.5.12.1 Azimuth and Tilt BOO
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1.5.12.2 Easting, Northing and TVD
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Balanced Tangential: Coordinates of
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BOOK 1 - WELLCAD BASICS - 153 Input
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1.5.13.3 Drift Correction Spectrum
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BOOK 1 - WELLCAD BASICS - 157 Log:
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1.5.13.7 Window Based Model BOOK 1
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Remarks Tab Model Design Tab Window
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BOOK 1 - WELLCAD BASICS - 163 The i
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Log containing the measurements (sp
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2 nd element (e.g. U): BOOK 1 - WEL
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Where �WK � � C � � �
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1.5.14 Hole Volume Calculation BOOK
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Unit: BOOK 1 - WELLCAD BASICS - 173
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Interval: Select a log dealing with
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Inserting intervals: After selectin
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To display the Annotation Bar: �
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Begin is where you clicked to draw
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1.6.1.3 Callout Annotation BOOK 1 -
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List of existing layers Click to al
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1.7.1.2 Creating Anchor Points Link
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Common link lines and their effect
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BOOK 1 - WELLCAD BASICS - 191 If yo
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BOOK 1 - WELLCAD BASICS - 193 Tilt
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Select the depth reference that cor
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BOOK 1 - WELLCAD BASICS - 197 Step
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BOOK 1 - WELLCAD BASICS - 199 The m
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BOOK 1 - WELLCAD BASICS - 201 Date/
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BOOK 1 - WELLCAD BASICS - 203 Orien
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BOOK 1 - WELLCAD BASICS - 205 Cross
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1.8.1.2 Chart Settings Chart Title
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1.8.1.4 Depth Range Selection BOOK
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1.8.2.2 Log Overview Axis Settings
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BOOK 1 - WELLCAD BASICS - 213 Highl
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1.8.2.3 Cluster Statistics 1.8.3 Bu
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Creating a Cluster � Move your cu
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1.8.4 Adding Regression 1.8.4.1 Reg
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1.8.4.2 Regression Data Source 1.8.
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BOOK 1 - WELLCAD BASICS - 223 Right
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Annotation Clusters Legend Plot Leg
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Plot Legend BOOK 1 - WELLCAD BASICS
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1.8.5.2 Inserting Annotations BOOK
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Appendix A APPENDIX A - 231 The fol
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Display Styles: Well Log data is al
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APPENDIX A - 235 Scale: The horizon
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Select the presentation style for e
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Classification: APPENDIX A - 239 Cl
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APPENDIX A - 241 Copy: Copies the d
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Mud Log Description: APPENDIX A - 2
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APPENDIX A - 247 polarity positive
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APPENDIX A - 249 correct depth. A c
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Editing Methods: APPENDIX A - 251 T
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Shift by: Performs a constant depth
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APPENDIX A - 255 Mud Log to Litho L
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� Open the Edit > Insert New Log
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APPENDIX A - 259 Position: The dept
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APPENDIX A - 261 Items Count: For e
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APPENDIX A - 263 Cut: Copies the da
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Interval Log Description: APPENDIX
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Classified Bar: Classified Bar styl
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APPENDIX A - 271 In some cases it m
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APPENDIX A - 273 Inserting data:
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Conversion to other log types: APPE
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Comment Log Description: APPENDIX A
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Format: APPENDIX A - 279 From left
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Editing Methods: APPENDIX A - 281 C
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APPENDIX A - 283 The following opti
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APPENDIX A - 285 Defaults can be se
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Inserting a new Marker Log: APPENDI
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Name Dictionary: APPENDIX A - 289 T
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Flying Menu: Settings: Get access t
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CoreDesc Log Description: APPENDIX
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Main Settings: Title: Core Descript
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Background hidden (right) to enhanc
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To re-position the entire interval:
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APPENDIX A - 301 When sorting is pe
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Lithology Log Description: APPENDIX
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APPENDIX A - 305 WellCAD. LTH libra
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Primary: Bed limits and contact lin
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Select a pattern that will be used
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Litho Bar attached to WellCAD Works
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Delete: Removes the log and its dat
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Pattern Dictionary: Lithology Log d
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Display Styles: APPENDIX A - 317 St
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APPENDIX A - 319 Column Settings: T
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APPENDIX A - 321 Left: Strata colum
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Box Style set to Center, Left, Righ
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Inserting Data: Click to insert fre
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APPENDIX A - 327 The following opti
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Stacking Pattern Log Description: A
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APPENDIX A - 331 Title: Enter the t
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APPENDIX A - 333 Changing top and b
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Conversion of stacking pattern inte
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OLE Log Description: APPENDIX A - 3
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Tool Bar and Menu Bar from EXCEL Ne
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Main Settings: Title: OLE Log Setti
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Slice at: Splits the data set into
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Inserting a new FWS Log: APPENDIX A
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APPENDIX A - 347 upper and lower pa
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Default Settings: APPENDIX A - 349
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Inserting a new VSP Log: APPENDIX A
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Editing Methods: APPENDIX A - 353 V
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APPENDIX A - 355 Image Log / Image
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Main Settings: Title: Select the We
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APPENDIX A - 359 The Shifted Curve
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APPENDIX A - 361 Copy: Copies the d
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RGB Log Description: APPENDIX A - 3
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Flying Menu: RGB Log Flying Menu AP
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RGB Log to Image Log conversion APP
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APPENDIX A - 369 Line style: Data p
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Style: APPENDIX A - 371 The Analysi
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APPENDIX A - 373 Clicking the Advan
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APPENDIX A - 375 Adjust the depth r
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APPENDIX A - 377 Continue inserting
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Default Settings: APPENDIX A - 379
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Main Settings: Title: Percentage Lo
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Line Style: Line style APPENDIX A -
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APPENDIX A - 385 The Analysis Compo
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Flying Menu: Percentage Log Flying
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APPENDIX A - 389 The default patter
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W S N E APPENDIX A - 391 N E S W N
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Additional Attributes: APPENDIX A -
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Caliper button: Structure Log in Pr
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Tadpole: Structure Tadpole style se
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Editing Methods: APPENDIX A - 399 N
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APPENDIX A - 401 sine wave that wil
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APPENDIX A - 403 Clear Contents: Er
Page 415 and 416: Breakout Log Description: APPENDIX
Page 417 and 418: Title: APPENDIX A - 407 Enter the t
Page 419 and 420: Breakout projection style settings
Page 421 and 422: To delete a breakout pick: � Sele
Page 423 and 424: Default Settings: APPENDIX A - 413
Page 425 and 426: Inserting a new Bio Log: APPENDIX A
Page 427 and 428: APPENDIX A - 417 Position: You can
Page 429 and 430: APPENDIX A - 419 When opening the H
Page 431 and 432: APPENDIX A - 421 Style: If the Disp
Page 433 and 434: Flying Menu: Bio Log Flying Menu AP
Page 435 and 436: Engineering Log Description: APPEND
Page 437 and 438: Display Styles: APPENDIX A - 427 En
Page 439 and 440: Full, Left and Right display styles
Page 441 and 442: Drill Item Example of a log with th
Page 443 and 444: Flying Menu: Engineering Log Flying
Page 445 and 446: Shading Log Description: APPENDIX A
Page 447 and 448: APPENDIX A - 437 Copy: Copies the d
Page 449 and 450: Inserting A New 3D Log: APPENDIX A
Page 451 and 452: Title: APPENDIX A - 441 Enter the t
Page 453 and 454: Frame: APPENDIX A - 443 If no Frame
Page 455 and 456: APPENDIX A - 445 Select the log tha
Page 457: Default Settings: APPENDIX A - 447
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Page 476 and 477: 466 - APPENDIX A www.alt.lu Vector
Page 478 and 479: 468 - APPENDIX A www.alt.lu Rose Di
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Page 482 and 483: 472 - APPENDIX A www.alt.lu Editing
Page 484 and 485: 474 - APPENDIX A www.alt.lu Fill: A
Page 486 and 487: 476 - APPENDIX A Cross Section Log
Page 488 and 489: 478 - APPENDIX A www.alt.lu Data dr
Page 490 and 491: 480 - APPENDIX A www.alt.lu extensi
Page 492 and 493: 482 - APPENDIX A www.alt.lu � Cli
Page 494 and 495: 484 - APPENDIX A www.alt.lu Default
Page 496 and 497: 486 - APPENDIX B Tool Bar www.alt.l
Page 498 and 499: 488 - APPENDIX B www.alt.lu Toggle
Page 500 and 501: 490 - APPENDIX B Pen Bar www.alt.lu
Page 502 and 503: 492 - APPENDIX B Document Layout Ba
Page 505 and 506: Appendix C Listed are all functions
Page 507 and 508: Power( A, P ) Returns argument (A)
Page 509 and 510: Index 3 3D Log · 37, 438 3D Log Ma
Page 511 and 512: Deleting Logs · 39 Depth Axis · 7
Page 513 and 514: Marker position · 148 Mask horizon
Page 515: Structure Log Editing · 399 Struct
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WellCAD Basics - Advanced Logic Technology

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