Techloglink.petrel2010.2.Usermanual

Petrel 2010.2 Techlog link Plug-in

Version 2.0

User Manual

Petrel 2010.2 Techlog link Plug-in 2.0 Page 3 of 30

Copyright 2010 Schlumberger. All rights reserved.

This work contains the confidential and proprietary trade secrets of Schlumberger

and may not be copied or stored in an information retrieval system, transferred,

used, distributed, translated or retransmitted in any form or by any means,

electronic or mechanical, in whole or in part, without the express written

permission of the copyright owner.

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Schlumberger, the Schlumberger logotype, and other words or symbols used to

identify the products and services described herein are either trademarks, trade

names or service marks of Schlumberger and its licensors, or are the property of

their respective owners. These marks may not be copied, imitated or used, in

whole or in part, without the express prior written permission of Schlumberger. In

addition, covers, page headers, custom graphics, icons, and other design

elements may be service marks, trademarks, and/or trade dress of

Schlumberger, and may not be copied, imitated, or used, in whole or in part,

without the express prior written permission of Schlumberger. Other company,

product, and service names are the properties of their respective owners.

Petrel and Techlog are marks of Schlumberger.

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Table of Contents

1. Introduction ......................................................................................... 5 2. Help and support information ................................................................. 6 3. Getting Started ..................................................................................... 7 4. Import Wells....................................................................................... 10 5. Import Logs ....................................................................................... 12 6. Import Wellbore Images ...................................................................... 16 7. Import Dip Interpretation Logs ............................................................. 22 8. Export Well Tops, Model Segments and Zones ........................................ 24 9. Import Fluid Contacts .......................................................................... 27


1. Introduction

The Petrel Techlog Link provides the ability to exchange data directly between

Petrel and Techlog, without the need to use third party applications, files or other

ad-hoc methods.

The ability to share interpretation data between the Petrophysicists and

Geologists promotes a unified understanding of the reservoir by avoiding

duplicate interpretations and increases dialog between the two communities.

Additional benefits of this module include:

Simplification of data transfer, assuring data integrity and providing a

clear audit trail with less scope for user error.

Use of Petrel and Techlog API's ensures correct mapping of data between

the applications and insulates customers from underlying changes to

internal application data models.

Extensible and flexible implementation, which provides scope for

incorporation of additional data exchange items.

Supported workflows:

Wells

o Well and trajectory transfer from Techlog to Petrel

Logs

o One-dimensional numeric logs transfer from Techlog to Petrel

Borehole Images workflows

o Wellbore Image transfer from Techlog to Petrel

o Dip Interpretation logs transfer from Techlog to Petrel

Well Tops and Fluid Contacts transfers

o Well Tops, Model Segments and Zones transfer from Petrel to

Techlog

o Fluid Contact transfer from Techlog to Petrel

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2. Help and support information

For any issue that is not covered in this manual, please contact Schlumberger

Information Solution Customer Care Center ([email protected]),

mentioning Petrel Techlog Link in the subject, or visit the support portal (http://support.slb.com).


3. Getting Started

The Techlog Link Module is launched from the Techlog Data Exchange Menu of

Petrels Processes (see Figure 1).

Figure 1

Project Explorer

Once launched, the user accesses the Techlog Project Directory Location by

selecting the Import tab and then the Techlog project directory folder selection

icon (see Figure 2).

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Figure 2

Navigating the directory tree and selecting the desired Techlog project populates

the Techlog Project browser tree with available well, dataset and variable data as

in Techlog (see Figure 3).


Figure 3

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4. Import Wells

Open the Techlog Link (see Figure 1) and select a Techlog Project. Open the Wells

mapping tab, it shows the list of wells in the Techlog project, and either a well

with a matching name in the Petrel project, or the option. In the

later case, when you import data from that well, the well will be imported

automatically. You can also choose to ignore that well, or map to a different one

(see Figure 4).

Figure 4

You can import one or several wells directly by selecting them in the project

browser (hold down the Ctrl key for selecting multiple items, and the Shift key for

selecting a range of items in the project tree), and click on the Import button.

The location of the created well head is based on the X, Y and Elevation

properties of the Techlog well, while the trajectory will be imported by looking for

the MD, INCL and AZI variables in a dataset called (by default) Survey in that

well (see Figure 5).


Figure 5

If some of the location or trajectory information is missing, a well will still be

created, with a default location or trajectory. Refer to the Petrel message log to

find out what was missing.

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5. Import Logs

Open the Techlog Link and select the Techlog Project to view the Techlog project

browser. Open a well node, then a dataset node, and select either some individual

logs or entire datasets. Open the Log mapping tab to check and modify how the

logs from Techlog will be imported (see Figure 6).

The default mapping between log names and property templates is the one also

used by Petrels LAS import function for instance, which is controlled by an xml file (LogNamesToPropertyTypeCatalog.xml). If the Log name is known, either

through that mapping file, or if a global well log already exists in the Petrel

project, then the corresponding Property template is shown, and the Global well

log is set to that existing log, or to . Otherwise, for unmapped logs,

the property template is defaulted to General and Global well log to .

Note that arrays and text variables cannot be transferred at this point; only 1D,

numerical, measured-depth indexed logs are supported.

Figure 6

You may select entire datasets for import, or selecting some objects, and then

right click and select Create conditional selection, to select all the objects (datasets

or variables) with the same names as the current selection (see Figure 7).


Figure 7

Click on Import once the object selection is done, and both well and log mappings

are ok (see Figure 8).

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Figure 8

The well logs have been created or overwritten in the Petrel input tree (see Figure

9).


Figure 9

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6. Import Wellbore Images

Open a Techlog Project. Borehole Images are located in the well folder (see

Figure 10).

Figure 10

After selecting (highlighting) the desired Borehole Image dataset in the Techlog

project tree, open the Image view tab to look at the image. The scroll bar on the

right hand side enables visualization of the entire image (see Figure 10). Select

Import to transfer the image files to an external directory structure.

The save as window appears and you are able to choose the location to save this concatenated image file. Choose the location, leave the file type set to

Bitmap Image and select save (see Figure 11). Note: the filename consists of the

well name and depth reference. This information will be needed to properly locate

the image during the Petrel import routine.


Figure 11

Once the file has been saved to disk, in Petrel, highlight the well that corresponds

to the wellbore image exported from Techlog. Right-click and select Import (on

selection) (see Figure 12).

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Figure 12

Select the image, leave the file type set to Bitmap Log and select Open (see

Figure 13).


Figure 13

Insert the Start MD and Stop MD (these values are included in the filename) and

then select OK (see Figure 14).

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Figure 14

After a few seconds the borehole image log will be visible in the Input tree and it

can be displayed in a Well section window (see Figure 15).


Figure 15

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7. Import Dip Interpretation Logs

Open a Techlog project. The Techlog Link searches for a dataset group named

Final_Dip beneath the corresponding well folder (see Figure 16). All dip

interpretation datasets must be located under the Final_Dip data group in order

to be recognized by the Techlog Link as dips. (You may change this default group

name in the Settings tab.)

Figure 16

After selecting (highlighting) either the whole Final_Dip group or one of its

individual datasets, you may check the Well mapping and click on Import.

Dip and azimuth logs are then available in the Petrel Input tree and they can be

displayed as Tadpole Plots and Rose Diagrams in Well Section Windows (see

Figure 17).


Figure 17

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8. Export Well Tops, Model Segments and Zones

Select the Techlog Project with the Techlog Project Directory Icon as shown in

Figure 2. Select the Well Tops / Segments Export tab to open the Petrel export

dialog (see Figure 18).

Select a single well or a Wells folder (collection of wells) for export to Techlog.

Inserting a Well Tops set is optional. If selected, it will limit well top transfers to

the selected set. This is useful when the Petrel project has multiple well top sets.

Inserting a Model Pillar Grid is also optional. Providing the model pillar grid

enables the export of the models segments and zones. Model segments and zones exported to Techlog will be associated to hydraulic zones in the Techlog

Fluid Contacts module and are required to enable the transfer of fluid contacts

from Techlog back to Petrel.

Users are then given the opportunity to insert a dataset prefix or to overwrite an

existing dataset. The default dataset prefix is PETREL.

Figure 18

Select the Wells Mapping tab to enable well mapping functionality (see Figure

19). Techlog well mapping allows the selection of existing wells or ignoring wells

that do not need to be transferred.

The green and brown tree icon in the lower left of the display provides auto

mapping functionality that matches Petrel well names to Techlog well names.


The red cross ignore all icon sets all wells to ignore. Desired wells to be

transferred can then be mapped individually. This is useful when the user wants

to only to transfer a few wells from a long list.

Figure 19

After completion of the well mapping, select the Export Icon. Upon completion the

user will be prompted to reload the current Techlog project into the Petrel Techlog

Link (See Figure 20). Select Yes.

Figure 20

After reloading, select the Techlog Project Browser tab to view the Techlog data in

the Techlog Link module. For each transferred Well, a PETREL_Tops dataset is

created, containing the corresponding well tops information. If a model pillar grid

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was provided, the Tops dataset will also contain a fault block and a zone variable

(See Figure 21).

Figure 21

Note that if you had Techlog open before the transfer, youll have to reload the datasets (Shift+F5) in the Techlog application as well, to see the imported well

tops.

This Tops dataset can then be used as the input zonation by Techlogs Fluid Contact module, and the resulting output contacts dataset can be imported into

the Petrel model.


9. Import Fluid Contacts

After successful transfer of Well Tops, and Model Segments and Zones from Petrel

to Techlog, this information can be used to map Techlog fluid contacts to Petrel

segments and zones. Mapping fluid contacts enables the auto-population of Petrel

Fluid Contact sets directly from Techlog.

To transfer Fluid Contacts to Petrel, open the Techlog Link and select the desired

project (see Figure 2). Then select the contact set you wish to transfer (see

Figure 22).

Figure 22

The Settings tab allows you to specify the Pillar Grid to assign the fluid contacts

(see Figure 23). This should be the same pillar grid as the one selected during the

export of the Well Tops.

After specifying the pillar grid you can click on the Import button becomes active.

Select Import.

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Figure 23

Opening the fluid contacts icon in Petrel > Models > Pilar Grid Model > Fluid

contacts folder will show a new contact set named TL_Contacts (see Figure 24).


Figure 24

Closing (cancelling) the Techlog Link dialog and activating the Make Contacts

process in Petrel enables visualization of the imported fluid contacts by zone and

segment (see Figure 25). These contacts can then be displayed or used as any

native Petrel contact set, including volumetric calculations. In this example the

OWC for the zone Ness-2 has been defined for several segments.

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Figure 25

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