WellCAD Basics - Advanced Logic Technology

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152 - BOOK 1 - WELLCAD BASICS 1.5.12.3 Closure Distance, Closure Angle and DLS www.alt.lu For each depth sample of the Northing and Easting coordinates calculated with the former process a Closure Distance (or drift) from the TVD axis and a Closure Angle (or Drift Direction) in [deg] can be calculated and output in a Well or Mud Log. Units of the Closure Distance values are the same as for Northing and Easting. Additionally a channel containing the curvature – also known as Dog Leg Severity – is computed. The units are [deg/100ft] or [deg/30m] Northing axis Easting axis Well Path Explanation of Closure Angle and Closure Distance for a well path shown in a Bulls Eye view. To open the options dialog box and start this process select the Closure Distance, Angle And DLS process from the Process > Common > Borehole Deviation menu. The following options dialog box opens: Options dialog for Closure and DLS calculation
BOOK 1 - WELLCAD BASICS - 153 Input Channels: Select the appropriate input channels from the drop down lists. Well and Mud Logs are listed. 1.5.13 Spectral Gamma Processing Data from spectral gamma tools can either be imported into <strong>WellCAD</strong> using the *.TFD file import, a special file format output by the MATRIX logging system, or loaded from an ASCII file. The spectrum data should be imported into a FWS Log type in order to allow a spectrum display and support the conversion of counts to energy. A number of processes have been implemented to work with spectrum data. These processes are explained in the following paragraphs and can be accessed from the Process > Spectral Gamma menu. 1.5.13.1 Stack Spectra Gamma ray emission is a random process and count rates generally vary about a mean value. Counts must be accumulated over a period of time and averaged in order to obtain a reasonable estimate of the mean. The Stack Spectra process creates a new FWS Log containing at each depth or time sample an average spectrum computed from the actual trace, the N/2 traces preceding and the N/2 traces succeeding the actual trace. N corresponds to the number of stacks and must be entered by the user. The following figure illustrates the principle of the Stack Spectra process. N / 2 Trace . . . Actual Trace N + 1 traces � Average Trace . . . N / 2 Trace E.g. the process can be applied to a static measurement, where the spectral gamma probe was held over a certain time at a constant depth in the center of an enriched zone within a calibration pit. The stacking rate should be chosen high enough to
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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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Page 113 and 114: Switch between header and trailer s
Page 115 and 116: Empty dynamic text fields Interacti
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Page 125 and 126: 1.4.5 Data Export BOOK 1 - WELLCAD
Page 127 and 128: 1.4.5.2 Generating a LAS File BOOK
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Page 131 and 132: 1.4.6.2 Page Setup BOOK 1 - WELLCAD
Page 133 and 134: 1.4.6.3 Print Preview and Print BOO
Page 135 and 136: BOOK 1 - WELLCAD BASICS - 125 Const
Page 137 and 138: Formula for Vsh BOOK 1 - WELLCAD BA
Page 139 and 140: Code recorded as data, it refers to
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Page 145 and 146: 1.5.5 Setting up Classifications BO
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Page 151 and 152: BOOK 1 - WELLCAD BASICS - 141 Litho
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Page 155 and 156: 1.5.11 Correcting Data for Borehole
Page 157 and 158: Note: 1.5.12.1 Azimuth and Tilt BOO
Page 159 and 160: 1.5.12.2 Easting, Northing and TVD
Page 161: Balanced Tangential: Coordinates of
Page 165 and 166: 1.5.13.3 Drift Correction Spectrum
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Page 169 and 170: 1.5.13.7 Window Based Model BOOK 1
Page 171 and 172: Remarks Tab Model Design Tab Window
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Page 175 and 176: Log containing the measurements (sp
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Page 181 and 182: 1.5.14 Hole Volume Calculation BOOK
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Page 185 and 186: Interval: Select a log dealing with
Page 187 and 188: Inserting intervals: After selectin
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Page 195 and 196: List of existing layers Click to al
Page 197 and 198: 1.7.1.2 Creating Anchor Points Link
Page 199 and 200: Common link lines and their effect
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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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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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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
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Breakout Log Description: APPENDIX
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Title: APPENDIX A - 407 Enter the t
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Breakout projection style settings
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To delete a breakout pick: � Sele
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Inserting a new Bio Log: APPENDIX A
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APPENDIX A - 417 Position: You can
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APPENDIX A - 419 When opening the H
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APPENDIX A - 421 Style: If the Disp
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Flying Menu: Bio Log Flying Menu AP
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Engineering Log Description: APPEND
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Display Styles: APPENDIX A - 427 En
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Full, Left and Right display styles
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Drill Item Example of a log with th
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Flying Menu: Engineering Log Flying
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Shading Log Description: APPENDIX A
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Inserting A New 3D Log: APPENDIX A
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Title: APPENDIX A - 441 Enter the t
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Frame: APPENDIX A - 443 If no Frame
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APPENDIX A - 445 Select the log tha
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450 - APPENDIX A www.alt.lu Breakou
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452 - APPENDIX A www.alt.lu Box: Po
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454 - APPENDIX A www.alt.lu Rose Di
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456 - APPENDIX A www.alt.lu Mean Di
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458 - APPENDIX A www.alt.lu For pur
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460 - APPENDIX A www.alt.lu Grid: Y
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462 - APPENDIX A www.alt.lu Rose Az
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464 - APPENDIX A www.alt.lu Concent
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466 - APPENDIX A www.alt.lu Vector
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468 - APPENDIX A www.alt.lu Rose Di
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470 - APPENDIX A www.alt.lu As the
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472 - APPENDIX A www.alt.lu Editing
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474 - APPENDIX A www.alt.lu Fill: A
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476 - APPENDIX A Cross Section Log
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478 - APPENDIX A www.alt.lu Data dr
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480 - APPENDIX A www.alt.lu extensi
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482 - APPENDIX A www.alt.lu � Cli
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484 - APPENDIX A www.alt.lu Default
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486 - APPENDIX B Tool Bar www.alt.l
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488 - APPENDIX B www.alt.lu Toggle
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490 - APPENDIX B Pen Bar www.alt.lu
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492 - APPENDIX B Document Layout Ba
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Appendix C Listed are all functions
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Power( A, P ) Returns argument (A)
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Index 3 3D Log · 37, 438 3D Log Ma
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Deleting Logs · 39 Depth Axis · 7
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Marker position · 148 Mask horizon
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Structure Log Editing · 399 Struct
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