geoframe basic petrophysical interpretation using...

Schlumberger Basic Petrophysical Interpretation using PetroViewPlus

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GeoFrame Basic Petrophysical Interpretation Using PetroViewPlus

Training and Exercise Guide

GeoFrame 4 September 20, 2001


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Contents

About This Course

Chapter 1 PetroViewPlus Workflow

Learning Objectives

Keywords

Overview

Workflow

Chapter 2 Single Well PetroViewPlus Basic Features

Learning Objectives

Keywords

Exercise 2.1 Overview

Exercise 2.1: Basic Features

Chapter 3 Single Well PetroViewPlus Advanced Features

Learning Objectives

Keywords


Exercise 3.1: Advanced Features


Exercise 3.2: PetroViewPlus Express Mode

Chapter 4 Multiwell PetroViewPlus Features

Learning Objectives

Keywords


Exercise 4.1: Parameter Creation and Zoning


Exercise 4.2:Multiwell Crossplot (Normalization)


Exercise 4.3: Multiwell Data Functioning


Exercise 4.4: Multiwell Presentation Display


Exercise 4.5: Multiwell Processing

Chapter 5 Reservoir Property Summation (ResSum) and Mapping

Learning Objectives

Keywords


Exercise 5.1: ResSum Workflow


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About this course

This course teaches geoscientists the use of GeoFrame 4 petrophysics tools for processing and interpreting well logs. You will learn how to use deterministic approaches to do interpretation by using PetroViewPlus for a single well evaluation or multiwell evaluation


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Chapter 1 PetroViewPlus Workflow

Learning Objectives

After this lesson, you will be aware of some of the features in PetroViewPlus and how they will benefit you in your day-to-day work, and the workflow on how to use PetroViewPlus will be covered. They are presented in two sections:

Features overview of PetroViewPlus

Workflow using PetroViewPlus

Keywords

PetroViewPlus, Single Well Mode, Multiwell Mode, GeoFrame Petrophysical Analysis, Workflow

Overview

PetroViewPlus is a GeoFrame petrophysics application that provides quick and easy, guided petrophysical analysis for the generalist user.

The PetroViewPlus program has two modes: Single Well and Multiwell.

The Single Well PetroViewPlus program guides the user through the minimum number of operations required to do a simple petrophysical evaluation of well-log data. It offers a limited number of simple evaluation models for processing, plus user-defined functioning capabilities. It also offers interactive parameter selection from crossplots, histograms, and log displays and provides graphic presentations of input and output data.

The Multiwell PetroViewPlus program provides the ability to do multiwell zonation, multiwell cross-section display, multiwell crossplot display, multiwell data normalization, multiwell data functioning and multiwell data processing and interpretation based on the Single Well PetroViewPlus model and session file.

The Output of Multiwell PetroViewPlus and the LithoZone created by WellPix can be input to Reservoir Summation program to provide the reservoir properties summation data (porosity, volume of shale, water saturation, etc.) for geoscientists, by integrating with mapping software such as BaseMapPlus, the reservoir properties can be visualized and gridded.

Workflow

The typical workflow to use GeoFrame 4 basic petrophysical interpretation:


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Chapter 2 Single Well PetroViewPlus Basic Features

Learning Objectives

After completing this exercise, you will be able to

Perform deterministic interpretation on a single well using PetroViewPlus guided model of operation

Setup the equations (porosity, water saturation and shale volume) to perform Sand/Shale formation interpretation

Setup badhole indicators and perform data preparation

Pick parameters interactively from crossplot, log display and histogram graphics

Input parameters from external measurements

Generate and customize the interpretation results

Save all processing procedures into a session file with .qkv as file name extension

Quality control the interpretation results

Keywords

PetroViewPlus, Deterministic interpretation, Shaly-Sand model, Porosity, Water saturation, Shale volume, Badhole indicator, Data binding, Data preparation, Formation water resistivity, Crossplot, Histogram, Log display, Pickett plots, Archie, Dural water, Waxman-Smiths, Wyllie, Hunt-Raymer, Linear, Non-linear, Session file


The following are some of the major features in PetroViewPlus single well evaluation:

Model Zonation: Shaly-Sand, Carbonate, Simple Archie and Zoned Sand/Carbonate Models are available

Porosity Option: Density-Neutron, Density, Sonic, Neutron, External Porosity or User-defined equation

Water Saturation Equation: Archie, Dual water, Waxman-Smiths, Indonesia, Nigeria, Simandoux, User-defined equation

Wyllie Sonic Porosity or Hunt-Raymer equation

Linear or non-linear shale volume calculation

Bad borehole detection

Interactive parameter selection from: Log Curve, Crossplot, Histogram


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Session file save and recall (Express mode)

As for the further explanation in detailed for the features mentioned above and formulae (equation) used in PetroViewPlus, please refer to the online help documentation from GeoFrame Bookshelf.

Exercise 2.1: Basic features

The purpose of this exercise is to do single well petrophysical interpretation by using the basic functions of PetroViewPlus module.

(If the data has been loaded into your GeoFrame database, please skip step 1 to 7)

1) From GeoFrame Application Manager, click the Data icon to open Data Management Catalog window.


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2) From the Data Management Catalog window, select or highlight Data Load module under Loaders and Unloaders folder, and click OK (or Apply) to start the Data Load main window.


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3) Click the Input File… button to open the Select the File(s) to Load dialog window

4) Type in the directory path (the instructor will tell you what it is)/*.dlis inside the Filter’s blank text field

5) Click Filter to display files of the selected directory and select the file petro_updates.dlis from the Files sub-window, and then click OK

Do not assign a Field, Well, Borehole, or Producer name to the project at this time.

6) Click the Run button to start loading data

7) After data loading is finished, click the Exit button to close the Data load window (click OK for all pop-up message windows

8) From GeoFrame Application Manager, click the Process icon to open the Process Manager main window

9) Start a new activity in the Process Manager by selecting File > New Activity

10) Click the icon on the left side of the Process Manager main window to open the Product Catalog window, and then click the Petrophysics folder to select PetroViewPlus module and click the OK button


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11) Click the Activity button to open a sub-window, and name your activity as what you wish to call it.

12) Click the first icon from top on the left side of the Process Manager main window to open the Data Focus Selection window. Set the data focus on WELL-8B, by doing the following from this sub-window:

• Highlight the project name by clicking on it with MB1 (left mouse button), if it is not highlighted

• Change the Show menu to Borehole

• Highlight only the WELL-8B borehole, under StrattonB field, and click OK

13) Select and double-click on PetroViewPlus module to bring up the main window of PetroViewPlus


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14) Select the Shaly Sand model, under the pull-down Model menu of the PetroViewPlus main window. Shaly Sand is the default model of PetroViewPlus if you do not wish to change.

Phase1: Setup

15) Click the Setup icon to open the sub-window Shaly Sand Setup


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16) Click the Input Equations icon and set the input equations as follows: Click on the orange areas with MB3 to bring up a pull-down menu with available options:

Main Porosity = Density –Thermal - Neutron (CNL)

Badhole Porosity = None

Water Saturation = Dual-Water

Flushed Zone Analysis = Off

Water Cut from CMR = None

Coal Detection = OFF

Anhydrite Detection = OFF

Halite Detection = OFF

17) Click the Shaly Sand Shale Indicators icon, and toggle the Gamma Ray to Linear and all other shale indicator switches OFF. (Combine option applies only if you have more than one indicator, so leave as default for this exercise)

18) Click the Bad Hole Indicator icon, and turn all selectors OFF

19) Select the Binding Preference icon to define which types of arrays (log curve) PetroViewPlus will use and where it will start looking for them when it comes to binding the arrays (next step). Leave it set to the default for this exercise, so click the OK button


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20) Click the Input Curves Binding icon to set all necessary input channels. You should have all necessary input channels (M_CH and N_CH are optional parameters from core analysis) except for the Temperature TEMP_CH, which will be calculated by PetroViewPlus later in this exercise, and click OK. If no channels are bound or you wish to change the channel’s binding, do the following:


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Highlight (click MB1) the channel first, and then

Click MB3 to select the array from the database (standard Data Item selector of GeoFrame)

21) Click the Processing Interval icon and set the interval from 4580 to 7560

22) Click the General Parameters icon and set the parameters as:


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RMF = 0.264

MST = 85

Rw = 0.11

RWT = 220

OBM switch = Off

Surface Temperature = 80° F

Bottom Hole Temperature = 220° F at 7560 ft

23) Click the Data Preparation icon to check that Input Neutron Matrix is set to Limestone. Leave all other parameters and settings as default. The program will now calculate a temperature channel.

24) Click the Display Input Curves icon to view the input log curves and do the quality control to verify that the input log curves appear correctly.


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25) When satisfied, select File > Close on the Input Curves Display main window and click the OK button in the Shaly Sand Setup window.

Phase 2: Shale/Porosity Picks

1) Click the Shale/Porosity Picks icon from PetroViewPlus main window to open a sub-window which contains a number of tasks


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2) Click the Badhole Parameters button to bring up a sub-window for setting parameters. For this exercise, keep the default settings, just click OK to close the sub-window

3) Click the Matrix Points icon and click in the RHOBMatrix input field, then click on CrossPlot. An interactive crossplot appears. You can drag the shale points (the lower right apex of the triangle) to interactively set Density and Neutron response parameters.

4) Drag the shale point to the lower right corner of the cloud of data points (about 0.36, 2.62). You will see the actual parameter values in the information window at the bottom of the crossplot. When you click OK in this window, the program computes a Vclay channel.


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5) Click the Shale Points icon. Click in the GRcln field, and then click Log Display. Use MB1 to move the red line to make GRcln exactly equal to the lowest gamma ray reading in the sand at approximately 6300 feet (60-65API). Select GRshl and set its value near the average value in the shales below 6070 ft to approximately 140-145 API.

6) Click the Rwa Parameters button and set the following values:

WCLP = 0.15

A_ZP = 1

C_DWA = 0

M_MWA = 2


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26) Click the Hydrocarbon Parameters icon

27) Set RHOHYD to 0.2, LH_CORR to Off, HTYP to Gas and click OK.

28) Click the Compute/Display Shale/Porosity/Rwa icon.


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29) Use File > Close on the Shale/Porosity/Rwa Display and click OK in the Shaly Sand Shale/Porosity Picks window

Phase 3:Rw from Pickett Plot

30) Click the Rw Picks button.


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31) Click the Select Rw/Clay button. Click in the Rw input field and then click on Crossplot...

A Pickett plot appears. You need to discriminate the clean sections:


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32) In the Pickett Plot window, click the Scale icon. In the Change Plot Scales window, click in the VCL1 input field and change the 0 to 0.25. Click OK (or Apply) to see the change. Click the Pickett Plot

Parameters icon to change the Sw3 line to 30%. (You can also change A, M, or N in this window.)

33) Click OK. Observe the change on SW values on the lines.

34) Use MB1 to drag the red Sw line to the bottom left edge of the cloud of clean water zone data points (approx Rw = 0.075 ohm.m). Click OK.

35) Click in the Rwb input field, then click Log Display. Set the red line on the shale water resistivity value (approx Rwb=. 085 ohm.m). Click OK in both the Log Display window and the Zone Parameter Editor.

36) Click the Rw Quality Control button.

A display appears with the wet resistivity (R0) overlaid on the total resistivity RT. There should be a reasonable overlay in 100% shale and 100% clean water sands. If not, then Rwb and Rw will need to be adjusted.


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37) Click File > Close to close the Rw Quality Control display and click OK in the shaly-sand Rw Picks window when you are satisfied with the fit.

Phase 4: Sw Computation

1) Click the Sw Computations button.

2) Click the Compute/Display Sw button to see the final display.


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3) Select File > Close to close the Sw Display and click OK in the Sw Computations window.

4) Save your work to a session file by clicking the Save icon in the main PetroViewPlus window. Save your session file as stratton8b.qkv by entering the file name in the light blue selection box.

5) Your file will be saved to the wa_petroview set in your local user area (wa_petroview/stratton8b.qkv). This file will be used in the multiwell exercises.

6) Select File > Save Output Results to save zone parameters and output channels.

7) If the program refuses to let you save the file in wa_petroview, it is because you do not have a subdirectory of that name. Go to the GeoNet launcher and start a GeoFrame Xterm. Type mkdir wa_petroview at the prompt. Now go back to PetroViewPlus and File > Save Session File as...


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Chapter 3 Single Well PetroViewPlus Advanced Features

Learning Objectives

After completing this exercise, you will be able to:

Setup PetroViewPlus to perform Zoned Sand/Carbonate interpretation

Utilize some of the advanced features of PetroViewPlus

Use shallow resistivity input for Sxo saturation calculation

Light hydrocarbon correction and oil-based mud interpretation

Coal, Anhydrite, Halite detection

Save all processing procedures into a session file with .qkv as file name extension

Apply saved (.qkv) file to another wells

Setup a zone and change parameters for the zone

Quality control the interpretation results

Keywords

Sand/Carbonate Zonation model, Flushed zone water saturation, Coal, Anhydrite, Halite, Light hydrocarbon correction, Oil-based mud, Pickett Plots, Non-linear shale volume calculation


Advanced Features in PetroViewPlus

Model Zonation: Allows you to switch between the “Shaly Sand” and “Carbonate” models

Computation of Sxo Saturation: Allows you to compute Sxo (flushed zone) saturation needed for a light hydrocarbon correction or to produce a “moved-oil” plot that might be indicative of productive intervals

Coal, Anhydrite and Halite Detection: Allows you to detect special minerals and flag these minerals for geological correlation

Non-linear shale volume calculation

Support for Oil-Based Mud

Light Hydrocarbon correction: Allows you to compute a correction to porosity based on the density of the hydrocarbon in the flushed zone and get a more accurate porosity


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User-defined Sw lines on Pickett Plots: Allows you to define the Sw lines and cutoff on the data that is used in the Pickett plot and then get a good Rw determination

As for the further explanation in detailed for the features mentioned above and formulae (equation) used in PetroViewPlus, please refer to the online help documentation from GeoFrame Bookshelf.

Exercise 3.1: Advanced Features

The purpose of this exercise is to do single well petrophysical interpretation by using the advanced functions of PetroViewPlus module.

(If the data has been loaded into your GeoFrame database, please skip step 1 to 7)

1) From GeoFrame Application Manager, click the Data icon to open Data Management Catalog window.

2) From the Data Management Catalog window, select the Data load module under the Loaders and Unloaders folder and click OK (or Apply) to start the Data Load main window.

3) Click the Input File… button in the Data Load main window to open the Select the File(s) to Load dialog window

4) Type in the directory path (your instructor will tell you what it is) /*.dlis inside the Filter’s blank text field

5) Click the Filter button to display files of the selected directory and select the file petro_updates.dlis from the Files sub-window, and then click OK

6) Do not assign a Field, Well, Borehole, or Producer name to the project at this time.

7) Click Run in the Data Load main window to start loading data

8) After data loading is finished, click the Exit button to close the Data Load window (click OK for all pop-up message windows after clicking Exit)

9) From GeoFrame Application Manager, click the Process icon to open the Process Manager main window


11) Click the icon on the left side of the Process Manager main window to open the Product Catalog window, and then click the Petrophysics folder to select PetroViewPlus module and click OK

12) Click the Activity button to open a sub-window, and name your activity as what you wish to call it

13) Click on the first icon from top on the left side of the Process Manager main window to open the Data Focus Selection window. Set the data focus on Complex-Sand-Carb borehole by doing the following from this sub-window:

Highlight the project name with MB1 (if it is not highlighted)

Change the Show menu to Borehole


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Highlight (MB1) only the Complex-Sand-Carb borehole under Complex-Sand-Carb field and click OK

14) Select and double-click (MB1) on PetroViewPlus module to bring up the main window of PetroViewPlus

15) Select the Zoned Sand/Carbonate model from the Model pull down menu.

Phase1: Setup

1) Click the Setup icon to open the sub-window Zoned Shaly Sand Setup/Carbonate which contains a number of tasks.

2) Click the Input Equations icon and set the input equations as follows: (Click on the orange areas with MB3 to bring up a pull-down menu with available options)

Main Porosity = Density – Thermal - Neutron (CNL)

Badhole Porosity = Sonic - Wyllie

Water Saturation = Dual - Water

Flushed Zone Analysis = Using – Flushed – Zone - Resistivity

Wet< > Dry Clay = WCLP

Water Cut from CMR = None

Coal Detection = Off

Anhydrite Detection = On

Halite Detection = On

3) Click the Shaly Sand Shale Indicators button. Leave the Density - Thermal Neutron as Linear and change the Gamma Ray to Clavier. Use MB3 to toggle between options.

4) Click the Carbonate Shale Indicators button. Leave the Gamma Ray as Linear.

5) Click the Bad Hole Indicators button. Turn the Differential Caliper and Hole Rugosity ON and all others OFF.

6) Click OK


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Special Mineral Indicators

1) Click the Special Mineral Indicators button. Turn the following indicators to ON and leave all others OFF:

ANHYDRITE: Density = ON

ANHYDRITE: Thermal Neutron = ON

HALITE: Density = ON

HALITE: Thermal Neutron = ON

2) Click the Binding Preference button. This option allows you to define which types of arrays PetroViewPlus will use and where the program will begin searching for them when it comes to binding the arrays (in the next step). Leave it set to the default for now.

3) Click the Input Curves Binding button. You should have all necessary input channels (M_CH and N_CH are optional parameters from core analysis) except for the hole rugosity channel (HRUG) that will be calculated by PetroViewPlus later in this section. Select the arrays as in following procedure:


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4) Click on arrays name and then click MB3 and select Log Curve Selector, the release MB3


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5) Enter in the array name and hit <Return>, use the Standard Data Item selector to select which curve you wish to use

6) Click the Processing Interval button. For the purpose of this exercise, process the whole interval

7) Click the General Parameters button and set the following values:

BHT = 85° F @ 2586 ft.

Surface Temperature = 75° F

RMF = 0.04ohm.m

MST = 85° F

Rw = 0.047ohm.m

Rwt = 85° F

8) Click the Data Preparation button. Change Caliper to HRUG to YES. Leave all other parameters and settings at default. The program will calculate Hole Rugosity.

9) Click the Display Input Curves button to view the input log curves, and the newly calculated HRUG. Keep this display for future reference.


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10) When you view the plot, notice that there is an abrupt change in lithology at 2496 ft. This is the boundary between sand-shale and carbonate-evaporite. You can now go back to the General Parameters task to put in this zoning.

11) Click the General Parameters button and insert a zone at 2496 ft to be able to zone the FMODEL parameter. To do this, follow these steps:

Click in the input field that holds the bottom depth of the zone labeled Sand Carbonate.

Click on Insert and enter the depth 2496 ft in the at slot. Name the upper zone as Carb-Evap.


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In the General Parameter Editor window, change the value of the FMODEL parameter to Sand for the lower zone.

Click OK.

12) Click OK in the Setup window.

Phase2: Shale/Porosity Picks

1) Click the Shale/Porosity Picks button.

2) Click the Badhole Parameters button. Click in the MXHRUG (Maximum Allowable Hole Rugosity) input field, then click Log Display.

3) A plot of HRUG versus depth appears. You can move the line with MB1.

4) Set the parameter as follows:

MXHRUG = 0.167

PHIMAX = 0.3

MDCS = 4.8


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RHGAMin = 2.65

5) Click OK.

6) Click the Matrix Points button. Set the values as follows:

RHOBShale = 2.6

RhobSand = 2.65

NPHIShale = 0.36

NPHISand = -0.07

You can use the crossplot to determine the endpoints only for the zones in which the model type has been set to Sand.

7) Click the Shale Points button. Click in the GRcln field, and then click Log Display. Move the red line to make GRcln to the lower part of the GR readings (about 6 Gapi). Similarly, select GRshl and set it to approximately 100 Gapi.

8) Click the Badhole Porosity button. Click Calibrate.

An ElanPlus Parameter calibration process runs (ParCal) to estimate the best Sonic parameters to match the neutron-density porosity. The calibrated values are displayed in a popup window. The new values are displayed in green. If limited by the threshold, they will be displayed in red.

9) Click OK in the ParCal Output window to use these parameters. The calculated values should be approximately 47.5 us/ft for SonicCarb and 70 us/ft for SonicShale. Click OK to use these values.

10) Click the Special Mineral Parameters button. Click on the RHOB Halite parameter field and click Log Display. The threshold should be set to catch the salt in the upper interval above 2430 feet. Set the value to about 2.23. Similarly, set the other parameters. The final values should be approximately:

RHOB Halite = 2.23

RHOB Anhy = 2.834

NPHI Halite = 0.024

NPHI Anhy = 0.04


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These values are different from the default endpoints for the pure mineral. The objective is to be able to properly detect the special mineral, allowing for impurities in the mineral and averaging effects in the logs (at bed boundaries, for example). These endpoints should also be selected so that the mineral is not detected in the reservoir sections. This is not a problem in this exercise because there is so much difference in log values between the sand/carbonate and evaporites when using both the density and the neutron.

11) Click the Rwa Parameters button and set the following values:

WCLP = 0.15

A_ZP = 1

C_DWA = 0

M_MWA = 2

Light Hydrocarbon Correction

12) Click the Hydrocarbon Parameters button. Turn the LH_CORR parameter ON in the lower zone (Sand/Carbonate) and set the RHOHYD to 0.6


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13) Click the Compute/Display Shale/Porosity/Rwa button.

The program creates a display of the lithology and porosity for quality control. Check that the Sand/Shale model displays in the lower part of the well, and that it changes to the carbonate model above 2496 ft.

Phase3: Rw Picks

1) Click the Rw Picks button.


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2) Click the Rw/Clay icon. Click in the Rw input field for the lower zone, and then click on Crossplot. A Pickett plot appears. Although this exercise does not have a wet zone, it would still be useful to discriminate the clean sections:

3) Click in the Rwb input field for the lower zone, and change the value to 0.1. Click on the Constant button to apply this value to both zones (respecting the temperature difference in the zones).

4) Click the Rw Quality Control button.

A display appears with the wet resistivity (R0) overlaid on the total resistivity RT. Since there are no wet zones or shales, it is difficult to gauge the quality of the selections.


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Phase4: Sw Computation

1) Click the Sw Computations button.

2) Click the Compute/Display Sw button to see the final display.


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3) Save your work to a session file. Go to the File pull-down menu on the main PetroViewPlus window (not Playback) and choose Save Session File as. Call the file sand-carb.qkv. You should save the file to the wa_petroview set. Then File > Save Output Results to save the zone parameters and output channels.

4) Re-run PetroViewPlus with new Parameters.

5) Now that you have been through all the parameters once, it is not necessary to follow the full sequence of

parameter setting. Under Shale/Porosity Picks , click Special Mineral Parameters

and change RHOB Halite to 2.5 in the upper zone.

6) Click on Sw Computations in the main PetroViewPlus window. Then click on

Compute/Display Sw.

The display should now show more salt in the upper zone.


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The purpose of this exercise is to do single well petrophysical interpretation by using the Express Mode & Iterations of PetroViewPlus module. The session file will come from the previous exercise and, we will use it to process another new well data from the Express mode feature of PetroViewPlus

Exercise 3.2: PetroViewPlus Express Mode

1) Start a new activity in the Process Manager by selecting pull down menu File > New Activity

2) Click the Process Manager icon on the left side of the Process Manager main window to open the Product Catalog window, and then click on Petrophysics folder to select PetroViewPlus module, and click OK.

3) Click the Activity button to open a sub-window, and name your activity as what you wish to call it.

4) Click on the first icon from top on the left side of the Process Manager main window to open the Data Focus Selection window. Set the data focus on Well-20B borehole by doing the following from this sub-window:

Highlight the project name (MB1), if it is not highlighted

Change the Show menu to Borehole

Highlight only the Well-20B borehole under StrattonB field, and click OK

5) Select and double-click the PetroViewPlus module to bring up the main window of PetroViewPlus

6) On the PetroViewPlus main window, click the Open File icon and choose the stratton8.qkv file saved in exercise 1.

7) The Sw Computations window opens.

8) Click the Compute/Display Sw button.

The General Parameter Editor window will open because the Bottom Hole Temperature Parameter has not been set for this well.

9) In the General Parameter Editor window, set the Bottom Hole Temperature (BHT) to 220° F at 7400 ft. and click OK

The final display will appear when the computation is completed.

You will probably need to iterate on some of the parameters to improve the results for Clay Volume and Porosity. You can do this easily by returning to the relevant step, as shown in the following example.


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10) Click the Shale/Porosity Picks button.

11) Click the Shale Points button . Click in the GRshl type-in field, and then click the Log Display button. Set the GRsh value to approximately 98 and the GRcln value to approximately 60.

12) Click OK and re-run Compute/Display Sw . Adjust other parameters and re-run the computation as required.

13) Add a zone to the model by:

Click the Shale/Porosity Picks button.

Click the Shale Points button . Insert a zone at 6225 feet by clicking in the lower left hand box (where 7400 is displayed), click the Insert button to set the boundary at 6225 and give the upper zone a name Top

Click OK to insert the boundary

Click in GRsh for the Top zone and set the parameter to about 115 using the interactive log display

Click OK to exit the parameters setting

14) Re-run Compute/Display Sw . Adjust the vertical display scale to 1:1000 by clicking the pull down menu.

15) Click View > Scale to see the results

16) You can save several versions of the analysis to the database if desired. Click User > Save Output Mode to control whether outputs from the module overwrite previous outputs.

17) Click File > Save to save the session file. The Session File Selection dialog box opens.

18) Enter the file name wa_petroview/ stratton20B.qkv in the Selection field, and click OK to save all data.

19)


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Chapter 4 Multiwell PetroViewPlus Features

Learning Objectives

After completing this lesson, you will be able to

Use PetroViewPlus in the Multiwell mode

Understand the functions of Multiwell PetroViewPlus:

Multiwell Parameter Management

Multiwell Graphical Zonation

Multiwell Normalization

Multiwell Crossplots/Histograms/Regression Analysis

Multiwell Data Function

Multiwell Data Processing

Multiwell Cross-Section

Iterative Well Normalization

Describe the basic elements of the Multiwell PetroViewPlus main window

Create Multiwell parameters and zones to control processing

Perform Multiwell crossplots to apply normalization to log data

Perform Multiwell data functioning

Create simple cross-sections and view/edit the cross section display

Perform multiwell processing from a key well’s session file

Save output into database

For more information on these features, please refer to the online help from GeoFrame Bookshelf.

Keywords

PetroViewPlus Multiwell Mode, Data normalization, Multiwell Data functioning, Multiwell crossplot, Multiwell cross section, Multiwell data processing


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The Zone Parameter Editor allows you to perform graphical zonation. The editor also allows creation of multiwell parameters and provides user-controlled, multi-spreadsheet views of parameters

The purpose of this exercise is to create Parameters and Zones for multiwell interpretation by using PetroViewPlus Multiwell Mode

Exercise 4.1: Parameter Creation and Zoning


2) Click on the icon on the left side of the Process Manager main window to open the Product Catalog window, and then click the Petrophysics folder to select PetroViewPlus module. Click OK

3) Click on Activity to open a sub-window, and name your activity as what you wish to call it.

4) Click the Data Focus Selection icon to open the Data Focus Selection window. Set the data focus on the StrattonB Field by doing the following from this sub-window:

Highlight the project name (if it is not already highlighted)

Change the Show menu to Field

Highlight only the StrattonB field under the project and click OK

5) Select and double-click on the PetroViewPlus module to bring up the main window of PetroViewPlus multiwell Mode


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6) If you set data focus on Borehole, it will bring up the single well mode PetroViewPlus main window. On the PetroViewPlus main window, select User > Multiwell Mode to change to the multiwell mode.

7) In the Multiwell PetroViewPlus, click on StrattonB in the Containing Fields panel. Highlight WELL-7B, WELL-8B, and WELL-9B in the Available Wells panel and move them to the Selected Wells area using the right arrow button.

8) Open the Well Initialization dialog box by selecting Utilities > Initialize Well Intervals. Use the default settings to set the top and bottom well intervals based on the GR curve. Click OK.


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9) In the Multiwell PetroViewPlus window, open the Zone Parameter Editor by clicking on the Parameter

Editor icon .

10) Create two new parameters, RW and RWT, for all of the wells by doing the following:


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Click the New button (located under the Existing Parameters box). In the Create Parameter window, highlight all of the wells and turn OFF the Add the parameters to the FIELD only toggle (red=on, gray=off).

Click the Codes button. The Parameter Codes Directory window opens.

In the Search For field, type RW and hit <Return> on the keyboard. Select the RW parameter and click OK.

In the Initial Value field of the Create Parameter window, type 0.03 and click Apply.

11) Repeat the above process to create the RWT parameter, with an initial value of 175° F. Click OK in the Create Parameter window when you have finished.

12) In the Zone Parameter Editor window, highlight WELLS 7B, 8B, and 9B and the parameters RW & RWT. Click Redisplay to check that all parameters/wells are correctly initialized.

Values for RW and RWT for selected wells appear in the Zone Parameter Editor window.

Create Zones

1) Click the Zoning button on the Zone Parameter Editor window to open the Display Setup window.

2) You can change the order in which the wells are displayed by using the Up, Down, Top, and Bottom buttons beneath the Well Display Order box. For this exercise, display them in numerical order.

3) Check that the Presentation… is ON (the indicator to the left of it is red) and is set to: wa_elan/zoning_default.lgp. Change the Initial Scale… to 1:500

4) Click OK to create the Multiwell display.


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5) Apply three zones at the following approximate depths:

Zone WELL-7B WELL-8B WELL-9B Upper Stratton 6290’ 6287’ 6282’ Middle Stratton 6597’ 6585’ 6599’ Lower Stratton 7294’ 7346’ 7342’

6) To apply these zones, scroll up to around 6300 feet

7) Click the Graphical Zone Editor icon. Place a zone marker in each well for the Upper Stratton Zone at the depth listed above. Select Zone > Rename in the Graphical Zone Editor and type Upper Stratton into the Zone Name field. Repeat for the other two zones, and select File > Close when done.

8) In the Zone Parameter Editor, change the RW to 0.035 for the Upper Stratton Zone for all the wells. This is best accomplished by highlighting all the wells in the left panel, all the zones in the middle panel, and the parameter RW in the right panel. Click Redisplay.


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9) Make the changes and click OK to exit the Zone Parameter Editor.


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The multiwell crossplot allows you to crossplot single or multiple wells and histogram multiple wells. You can also use this window to define “Key Wells” vs. “Target Well” and normalize the Target Well in the histogram or crossplot window.

The purpose of this exercise is to use basic functions of multiwell CrossPlot in PetroViewPlus Multiwell Mode

Exercise 4.2: Multiwell Crossplot (Normalization)

1) Continue with the same activity of previous exercise (Create Parameters and Zones). If you forget the activity name, just go back to the Process Manager to select the activity you named by using pull down menu File > Open Activity

2) In the Multiwell PetroViewPlus window, set the displays for cross-section and crossplot by using the Utilities > Set Module Displays pull down menu. Leave Crossplot set to Default and change CrossSection to the other screen: hostname: 0.1 or hostname: 0.0 (whichever is the screen opposite to the one that PetroViewPlus started on). Click OK.

3) In the Containing Fields section, select the StrattonB field. In the Available Wells section, highlight the following three wells and move them to the right to the Selected Wells section: WELL-7B, WELL-8B, WELL-9B

Crossplot Wells by Color

1) Click on the Crossplot icon to open the Crossplot Setup window.

2) In the Crossplot Setup window, click the Attributes button to select the following curves for display:

Axis Channel Code Linear/Log X NPHI Lin Y RHOB Lin

Cutoff1 GR Linear


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3) For each axis, toggle the Axis Type, enter the channel code, and hit <Return>. Toggle the Scale Type to Log for the X and Y axis before changing the Axis Type.

4) Click OK to exit.

5) Click Edit Symbol Color in the Crossplot window.

6) The Crossplot Editor window opens.

7) Change the color for Well-9B to Green (green3 in RGB mode) and the symbol to a plus sign (+). Leave the other wells at default. Click OK.

8) Click the Plot button.

9) The Crossplot displays (see note below).

10) In the Crossplot window, click on the Scales icon to change the scales as follows:

Axis Left/Bottom Right/Top RHOB 1.95 3.15 NPHI -0.15 0.45

11) Click OK.


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12) The crossplot will be redrawn, based on corrected scales.

Save the Crossplot Template

1) In the Crossplot window, click File > Save Plot Settings to save the scales and curve definitions. Use the file name:

2) In the Crossplot window, click File > Close to exit the plot.

Companion Plot Interactions

1) In the main Multiwell PetroViewPlus window, click Utilities > Well Initialization to set the display intervals. In the Well Initialization window, keep the default of using the GR curve to define the intervals and click OK to accept (if you continued with the previous exercise: Create Parameters and Zones, you can skip this step).

2) Generate the crossplot again with the new cutoff settings. In the Crossplot window, use the pull-down menu Options > Companion Plot to generate a cross-section of the wells.

If you have two screens and set the module display parameter correctly, the cross-section should appear on the opposite screen. The RT curve is scaled linearly. This can be changed by clicking on the curve and changing Scale Type to Logarithmic.

3) In the Companion Plot window, click the Zone icon to activate the zone selection. Scroll to approximately 6250 ft and MB1 to select the following zone in Well-7B: 6240 - 6250 ft. The relevant points will highlight in red on the crossplot.

4) In the Crossplot window, click the free-hand icon and select some points in the crossplot by drawing a small circle around selected points. These selections will show up in the Cross-Section window.

When viewing data like this, it is helpful to change the vertical scale in the Cross-Section window using the View > Scale pull-down menu. Set the Vertical Scale to 1/1000 or a similar compressed scale to see more of the data.

Multiwell data normalization

The purpose of this exercise is to do multiwell data normalization by using multiwell CrossPlot/Histogram in PetroViewPlus Multiwell Mode

1) Continue with the same activity of previous exercise (CrossPlot), if you forget the activity name, just go back to the Process Manager to select the activity you named by clicking File > Open Activity

2) If not already selected, move WELL-7B, Well-8B, and Well-9B into the Selected Wells panel in the Multiwell PetroViewPlus window.

If wells are not available, click StrattonB in Containing fields. The wells will then appear in the Available box. If you have started a new session, remember to select Utilities > Well Initialization

3) Open the Multiwell Crossplot Editor by clicking on the Icon .

4) In the Selected Channels (middle) panel, select the X Axis and then click the Attributes button, which is immediately below this panel.


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5) In the Axis Attributes window, click the Channel Code button. A Channels Codes Dictionary appears. Find GR and select it. Make sure that it appears in the Selection field, and then click OK. In the Axis Attributes window, click Apply.

6) Change the Axis Type to Y and set the Channel Code to RHOB. Similarly, set the Cutoff1 to NPHI.

7) Adjust the NPHI cutoff interactively by pressing High Cut Point. After the log display that appears, move the red line to eliminate some of the more suspect data points (approximately 0.50). Click OK on the log display, and then click Close to close the Axis Attributes window.

8) Click Target Well and make sure that WELL-7B is selected. (If the well is selected, it will have a > to the left of it.)

9) Click Plot in the Crossplot window to display the crossplot.

You will see that there are two clouds of data. Ideally, these should overlie each other. We are now going to look at a way of correcting for this.

10) Open a GR Histogram by clicking the Histogram icon in the Crossplot window. Make sure that the

Histogram Shift icon (in the Histogram Plot window) has a turquoise halo (click on with MB1), indicating that it is active.

11) “Grab” the target GR histogram data (the blue line) by placing the cursor over it and holding down MB1. Move the histogram until it overlays the orange one.

12) You also can use the automatic shift and squeeze icon to do the normalization.


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13) Click OK in the Histogram window to apply the changes and exit.

The two clouds of data should now overlay each other.

14) To write this transformation to the database, select File > Save Target Data.

15) Experiment with the other activities on the crossplot window (such as Log Curve Fit).


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16) Select File > Close to exit the Crossplot window. Click the Close button on the Crossplot Setup window to return to the Multiwell PetroViewPlus window.


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Using the multiwell data functioning window, you can apply equation functions on multiple wells.

The purpose of this exercise is how to use Multiwell Data Functioning in PetroViewPlus Multiwell Mode

Exercise 4.3: Multiwell Data Functioning

1) Continue with the same activity of previous exercise (CrossPlot), if you forget the activity name, just go back to the Process Manager to select the activity you named by using pull down menu File > Open Activity


If wells are not available, click StrattonB in Containing fields. The wells will then appear in the Available box.

If you have started a new session, remember to select Utilities > Well Initialization

3) Click the Invoke Data Functioning icon to open the Data Functioning window.

4) This function computes values for Volume of Shale, Effective Porosity, and Water Saturation.

5) Select File > Open to load the quickklook_mwelp.func function (your instructor will tell you what the directory is).


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6) Use the Parse button to verify the functioning expressions will work, and click OK. Click Bind… to verify the input curves are present, and click OK.

7) Click Compute to compute new outputs. Note the zone messages in the main Session Manager Message Area at the bottom of the window.

8) Click List Data… to display the List Data window.

9) In the List Data window, highlight all wells and click Apply to view the outputs. They will appear in the Computation Results section of the Data Functioning window.

10) Finally, click Save Data in the Data Functioning window, followed by Save in the Save Data window, to output the results to the database.

11) Click Close to close the Save Data window. Select File > Close in the Data Functioning window.

The saved items will be displayed in the Data Functioning window.

Viewing the results:

12) Go to General Data Manager to query for the results computed above, or use the Log Curve Data Manager to check from the database.


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13) Use the template presentation file built from the next exercise (Multiwell cross-section) to display all wells computed results.

Question: There is no RW parameter setting for the quicklook_mwelp.func, why this exercise can get right computation?


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The purpose of this exercise is how to use WellCompositePlus Presentation Builder to generate the user customized template file and make multiwell cross section display in PetroViewPlus Multiwell Mode

Exercise 4.4: Multiwell Presentation Display

1) Continue with the same activity of previous exercise (CrossPlot). If you forget the activity name, just go back to the Process Manager to select the activity you named, by clicking File > Open Activity.



If you have started a new session, remember to select Utilities > Well Initialization

3) Go back to the Process manager and start a new module WellCompositePlus from the Petrophysics product catalog.

4) Set Data Focus on Well-8B, and double-click on WellCompositePlus to open the Parameters window.

5) Change the template file as blank.lgp, and click Run to open the main graphics window.


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6) Select the Presentation Editor icon to open the Presentation Editor main window.

7) In the Presentation Editor main window, click in the text field T1 beneath the Track Name panel. Rename it Depth, and change the Track Width to 0.5.

8) In the Presentation Editor main window, click the Add Track button (beneath the Tracks panel) to add a new track. Name it Shale volume and change the Track Width to 1.5.

9) In the Presentation Editor main window, click the Add Track button beneath the Tracks panel to add a new track. Name it Free fluid and change the Track Width to 1.5.


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10) In the Presentation Editor main window, click Object Type and select General > Depth/Time Number, then click the Track button and select Depth.

11) Click on the Attribute Editor (AE) icon (scroll to the far right) to change the attributes of depth number

12) In the Presentation Editor main window, click Object Type and select General > Log Curve, then click the Track button and select Shale volume. Click the blue button Add Log Curve and type in VSH in the Code Selection text field. Click OK to close the window.

13) Click on the Attribute Editor (AE) icon (scroll to the far right) to change the left and right scale to 0 (zero) and 1.0. Change the foreground color to blue (you also can change the line thickness and texture.)

14) In the Presentation Editor main window, click Object Type and select General > Area Shading, then click the Track button and select Shale volume. Click the blue button Add Area Shading and click on the Attribute

Editor (AE) icon.

15) In the Area Editor window, modify the filling mode as Fill From To (Click the Boundary 1… button and select Left. Click the Boundary 2… button and select VSH.) Select a Shale pattern with a gray background. Click OK.

16) In the Presentation Editor main window, click Object Type and select General > Log Curve, then click the Track button and select Free fluid. Click the blue button Add Log Curve and type in PHIE in the Query by Code text field. Click OK to close the window.

17) Click the Attribute Editor (AE) icon to change the left and right scale to 0.5 and 0. Change the foreground color to red. You also can change the line thickness and texture.


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18) In the Presentation Editor main window, click Object Type and select General > Log Curve, then click the

Track button and select free fluid. Click the blue button, select Add Log Curve and type in BVW in the Query by Code text field. Click OK to close the window.

19) Click on the Attribute Editor (AE) icon to change the left and right scale to 0.5 and 0. Change the foreground color to red. You also can change the line thickness and texture.

20) In the Presentation Editor main window, click Object Type and select General > Area Shading, then click the Track button and select Free fluid. Click the blue button Add Area Shading and click on the Attribute Editor

(AE) icon.

21) In the Area Editor window, modify the filling mode as Fill From To (Click on Boundary 1… button and select PHIE and click on Boundary 2… button and select BVW) and select a Sandstone pattern with a red background. Click OK.


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22) Click OK to close the Presentation Editor window. The final display looks like this:


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23) From WellCompositePlus main window, go to menu File > Save Presentation As to save the graphics as a template file (such as lgp_templates/quicklook.lgp). Click OK.

24) Go to the Multiwell PetroViewPlus main window.

25) Select the Cross Section Display icon. In the Setup window, click the toggle button beside Presentation. The toggle is red when it is selected. Click the Presentation button to choose your presentation file (change wa_petroview/*.lgp to lgp_templates/*.lgp and hit <Return> to select quicklook.lgp).

26) Set the Initial Scale to 1/600 and click OK.


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27) View the Presentation (this is what you calculated from the previous exercise: Multiwell Data Functioning), and then click File > Close to exit.

Use a similar way to build a presentation file for multiwell PetroViewPlus results display.

28) Go to the WellCompositePlus main window and start from the blank.lgp.

29) Select the Presentation Editor icon to open the Presentation Editor main window.

30) In the Presentation Editor main window, click in the T1 text field (beneath the Track Name panel), rename it Depth, and change the Track Width to 0.5.

31) In the Presentation Editor main window, click the Add Track button (beneath the Tracks panel) to add a new track. Name it PVP results, and change the Track Width to 2.


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32) In the Presentation Editor main window, click Object Type and select General > Depth/Time Number, then

click the Track button and select Depth. Click the Add Depth/Time Number button, and then click the icon to set up parameters for depth number display.


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33) In the Presentation Editor main window, click Object Type and select Petrophysics > Elan Volume. Click the Track button and select PVP results. Click the button Add Elan Volume and select Collection PVP FINAL OUTPUTS ELAN_PVP_OUTPUTS. Click OK.

34) Click OK to close the Presentation Editor window.


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35) From WellCompositePlus main window, go to menu File > Save Presentation As to save the graphics as a template file (such as lgp_templates/mwpvp.lgp). Click OK.


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Multiwell Processing allows you to perform the deterministic computation of reservoir properties for several wells at one time.

Perform a dummy run validation before computing

Compute wells by zone

Salinity Initialization logic for Rw/Rwt and Rmf/MST calculations

The purpose of this exercise is how to do multiwell processing by using a key well session file in PetroViewPlus Multiwell Mode.

Exercise 4.5: Multiwell Processing

1) Continue with the same activity of previous exercise (CrossPlot), if you forget the activity name, just go back to the Process Manager to select the activity you named by using pull down menu File > Open Activity.



If you have started a new session, remember to select Utilities > Well Initialization.

3) Select StrattonB in the Containing Fields panel and click the Attributes button. In the Field Attributes Editor, click the Field Session button and select the stratton8b.qkv (the session file you saved from the first exercise: Basic single well PetroViewPlus interpretation) file. Click OK in both windows.

4) In the Session Manager, click Edit > Salinity Initialization editor, toggle ON the Re-initialize button, and click OK.

5) Click the Multiwell Processing Tool icon to open the Validation/Computation window.


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6) Press on Bind… button to check the data binding well by well. If the required data is not bound correctly, click the Browser button to change the data binding.

7) Click Validate to perform a “dry” or “dummy run” to test that the processing will work.

The Process Status window opens.

8) Click Close when finished.

9) Click Compute and wait until finished.

10) Click Close when finished. (The Save button saves the text of the report to an external file.)


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11) Click Close to close the Validation/Computation window.

12) Use the Cross Section Display icon to display the results. Toggle ON the button beside the Presentation File button, and click the Presentation File button, and select the file mwpvp.lgp you saved in the previous exercise.

13) Exit when finished.


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14) Now you create two new zone parameters (GR_CLA2 and GR_SILT) and set different values for different boreholes, then re-run the multiwell PetroViewPlus. Display the result to see what is the difference with the results from the previous processing parameters.

15) Back to the main Multiwell mode PetroViewPlus window, start the Zone Parameter Editor by clicking on the

icon.

16) The zones you created in the previous exercise will be visible in the Zone Parameter Editor - Existing Zones panel and the parameters (RW, RWT, etc.) you created in the previous exercise will be visible in the Existing Parameters panel.

17) Create two parameters (GR_CLA2 and GR_SILT) for all of the wells by pressing the NEW… button beneath the Existing Parameters panel

18) In the Create Parameter window, highlight all of the wells, and turn OFF the Add the parameter to the Field only toggle (red=on, gray=off).


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19) Press the Codes… button, the Parameter Codes Directory Window appears. Note that descriptions are displayed whenever you select a particular code

20) In the Search for field, type in GR* and then hit <Return> on keyboard. Select the GR_CLA2 parameter and press OK.

21) In the Initial Value field in the Create Parameter Window, type in 200 and click Apply.

22) In the same way, (repeat steps 16 & 17) create the GR_SILT parameter with an initial value of 20. Press OK in the Create Parameter Window when you have finished creating these two parameters.

23) In the Zone Parameter Editor Window, highlight WELL-7B, WELL-8B and WELL-9B and the Parameters GR_CLA2 and GR_SILT together with one of the zones (Middle Stratton). Click Redisplay to check that all parameters and wells are correctly initialized.

24) Change the GR_CLA2 to 140 for all zones in WELL-7B by using the Constant… button.

25) Click on Constant… to set GR_CLA2 = 140 to all the zones in WELL-7B.

26) Check all your changes and then click OK to exit the Zone Parameter Editor.

27) In the main Multiwell PetroViewPlus window, click Attributes… (under the Containing Fields panel) and change the select button for Existing Outputs from Intact to Over-write

28) Use the Multiwell processing tool to re-run the PetroViewPlus computation (repeat steps 5-10) for all three wells, you will see that the new results for WELL-7B are more reasonable, but the Clay Computation for WELL-8B and WELL-9B may need to adjusted.

29) You can use Zone Parameter Editor and Zoning… to adjust new parameters for all wells to get the best results.

30) Select File > Save As from the multiwell PetroViewPlus main window to save the multiple well sessions to a file called stratton.mw.

31) Select File > Save Data from the PetroViewPlus window. Click Zone Sets and Zone Parameters to be saved, and click OK.

Saving the session file actually saves the zone sets and well attributes to an ASCII file that can later be loaded to restore the status of the Multiwell session. The data save step saves the zone sets and parameters to the database, so that the reservoir summation program can pick up the proper zone boundaries.

Next step, Create Multiwell lithozone from WellPix, Lump the multiwell properties from ResSum, and make a 2D distribution (contour/gridding) map for multiwell properties from BaseMapPlus.


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Chapter 5 Reservoir Property Summation and Mapping (ResSum)

Learning Objectives

After completing this lesson, you will be able to: Create a LithoZone by using WellPix

Perform Reservoir Parameter Summation using ResSum

Create a reservoir summation model

Setup and customize cutoff sets for ResSum

View the ResSum result from Data Manager

Visualize ResSum result from BaseMapPlus

Keywords

WellPix, LithoZone, Zone version, Reservoir property summation, Summation model, Cutoff set, Gross, Net, Net reservoir, Net Pay, BaseMapPlus, Porosity, Saturation, Volume of Shale, Permeability


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This chapter will describe a workflow for calculating and mapping reservoir properties based on the petrophysical logs and formation markers. This workflow will use the WellPix and ResSum to create LithoZones and compute reservoir properties and averages for the zones.

ResSum creates sums and averages of log petrophysical properties by zone for one or multiple boreholes. These properties can then be output to a report, and they are saved to the database as part of the zones associated with layers. These properties can then be gridded and mapped in Basemap or CPS3 products.

For more information on WellPix, ResSum, and Basemap, please refer to the Online Help from the GeoFrame Bookshelf.

Data Requirement (Log Curve data and petrophysical analysis data)

LithoZone for specific Zone Version: Created from WellPix

Petrophysical analysis data (Porosity, Volume of shale/clay, Water Saturation, Permeability, etc.): Output from petrophysical analysis products (GeoFrame PetroViewPlus, GeoFrame ElanPlus or third party applications)

Exercise 5.1: ResSum Workflow

Run WellPix to Create a LithoZone

1) From the Application Manager, click the Geology icon to open the Geology Catalog window.


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2) From the Geology Catalog window, double-click on WellPix to open the WellPix window.

3) From the WellPix window, go to menu File > Template > Open to open the Open Borehole Display Templates dialog box.

4) From the Open Borehole Display Templates dialog box, select WellPix_gr.bdt and click OK to close the Open Borehole Display Templates dialog box.

5) Click All in the Open Template confirmation window.

6) From the WellPix window, click File > Add Boreholes to open the Select Borehole dialog window.

7) From the Select Borehole dialog window, select WELL-7B, WELL-8B, and WELL-9B (use <Ctrl> + MB1 to make multi-selection) and click OK to close the Select Borehole dialog window.

8) Click View > Depth Scale to open the Depth Scale window.

9) From the Depth Scale window, change Scale to 200, major tick to 100, and click OK to close the Depth Scale window.

10) Click Depth… (in the lower-right corner of the WellPix window) to open the Text Entry window, type in 6000 and click OK to close the Text Entry window.

11) From the graphic area, click on WELL-7B, and click Edit > Add UDC Template… to open the Open UDC Template dialog box


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12) From the Open UDC Template dialog box, erase the existing text in the Filter text field and enter directory (your instructor will tell you what it is) /*.lgp and press <Return>.

13) Select the petro.lgp from the Files panel, and click OK to close the window.

14) Click Yes in the UDC Track Propagation confirmation window.

15) Click Zone Version (lower-right corner of the WellPix window) to open the Select Zone Version window.

16) From the Select Zone Version window, click Zone Version Data Manager… to open the Project Zone Version Data Manager window.

17) From the Project Zone Version Data Manager window, enter stratton_sands_zv in the Name text field and click OK to create a new Zone Version to store the LithoZone, which will be created from WellPix. Close the Project Zone Version Data Manager window.

18) Click OK to close the Select Zone Version window.


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19) From the WellPix Window, select WELL-7B, and click the Create Single Litho Zone icon (6th icon from top) to open the Single Litho Zone Interpretation window.

20) From the Single Litho Zone Interpretation window, click Create Layer… button to open the Layer Creation window. Type in stratton_sands in the Layer name text field.

21) Click on Upper Surface to open the Feature Boundary window. Select Stratton Sands from the list, and click OK to close the window.

22) Click on Lower Surface open the Feature Boundary window. Select Base Stratton Sands from the list, and click OK to close the window.

23) Click on Layer Pattern to open the Pattern Selector Panel. Select the sand pattern (column 6, row 3). Click OK to close the window.

24) Click on Layer Color to open the Color Selector Panel. Select Gold color and click OK to close the window.

25) Click OK to close the Layer Creation window.

26) From the Single Litho Zone Interpretation window, click on Boreholes… to open the Select Boreholes for Single Litho Zone Interpretation window. Select WELL-8B and WELL-9B. Click OK to close this window.

27) Toggle ON the Propagate zero-length zones option.

28) Click OK to create the Lithozone stratton_sands, and close the Single Litho Zone Interpretation window.


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29) Click File > Exit to close the WellPix window.

Run BaseMapPlus on your secondary screen.

1) From the Application Manager window, click the Visualization icon to open the Visualization Catalog window.


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2) Select Basemap and change the last 0 to 1 in the Display field. Click OK to run the BaseMapPlus on your secondary screen.

3) Select the Create default geological map option and click OK.

4) Manage the Basemap graphics appearance based on what you have learned about how to use Basemap.

Run ResSum on your Primary screen

5) From the Geology Catalog window, double-click on ResSum to open the ResSum window


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6) From the ResSum window, click on Summation Model… to open the Select a Summation Model window.


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7) From the Select a Summation Model window, enter the name stratton_sands_model in the Summation Model text field and click on Create… to open the Summation Model Definition window.


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8) From the Summation Model Definition window, click on Zone Version… to open the Select Zone Versions window, select the stratton_sands_zv from the list panel, and click OK to close the Select Zone Versions window.

9) Click on Layers… to open the Select Layers window, select the stratton_sands from the list panel, and click OK to close the Select Layers window.

10) Click on Boreholes… to open the Select Boreholes window, select WELL-7B, WELL-8B and WELL-9B and click OK to close the Select Boreholes window.

11) Click OK to close the Summation Model Definition window.

12) From the ResSum window, click Curve Selection… to open the Log Curve Selection dialog box.

13) Click Selected Log Curves to open the Input Curves window.

14) Check to see if Vol. of Shale, Porosity, and Water Saturation have been bound with the data from the database. Then click OK to close the Input Curves window.


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15) Click OK to close the Log Curve Selection window.

16) Click Properties… to open the Summation Saved Properties window. Select the properties you wish to calculate, and toggle ON MD and TVD options, as well as the Zone Property, and Scatter Set options.


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17) Click OK to close the Summation Saved Properties window.

18) Click on Global Cutoff Set… to open the Cutoff Set for Summation Model window.


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19) From the Cutoff Set for Summation Model window, click New to open the ResSum Text Entry window. Enter a name cutoff_set1 and click OK to close the window.

20) Highlight the cutoff_set1 from the Name list panel, and change the Minimum Porosity to 0.15.

21) Toggle OFF Maximum Gamma Ray and Minimum Permeability option.

22) Toggle OFF Curve 1 Code and Curve 2 Code.

23) Click OK to close the Cutoff Set for Summation Model window.

24) In the Property Version text field, erase the existing name and enter a new name: stratton_sands_pv.

25) Highlight all boreholes (WELL-7B, WELL8-B, WELL9-B) in the Boreholes panel in ResSum window, and click

the Cutoff Set icon to open the Cutoff Set for Boreholes window.


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26) From the Cutoff Set for Borehole window, select cutoff_set1, and click OK to close it.

27) Highlight all zones in the Zones panel (in the ResSum window) and click the Cutoff Set icon to open the Cutoff Set for Boreholes window.

28) From the Cutoff Set for Borehole window, select cutoff_set1 and click OK to close it.

29) Click Compute… to open the Summation Computation window. Click OK to calculate the properties for lithozone.


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30) Click View to check the results from the Project Zone Data Manager.

31) Go to Results > Print to output the results to a text file or printer.


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32) Click Setup to specify the properties you wish to post on the Basemap, drag the property from the one Property Selection panel and drop it to the Selected Properties panel. You can select up to four properties to post in the Basemap window each time. Click on Layers… to select which layer you are going to work with.


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33) Click Map to post the properties you selected in the Basemap window (see what happened in the Basemap window).

13) In Basemap window, you can grid the properties you posted, and map the results.

14) In ResSum window, go to menu File > Exit to close the window.

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