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Newsletter first releaseHappy new year 2007!

We are very pleased to sharewith you our rst edition ofTECHSIANEWS. Through this

journal, we shall keep you up-dated on our latest technical andcommercial developments to

better inform you of our variousactivities.

In this edition, we will report onthe recent expansion of TechsiaSA that puts us in the best posi-tion to support our growing in-ternational user-base, and wewill also share the recent historyof developments in the Techlogproduct suite.

Client feedback from the nowseveral hundred-strong interna-

tional user-base has been of in-estimable value in helping toshape the growth of the com-pany and the growth of theproduct. Now with many active

users on six continents, TechsiaSA has begun a phase of expan-sion to bring our support teamscloser to you, the users.

Whether you are a power user, astarting user, a user-to-be or just

an observer, we thank you foryour comments and contributionto the development of Techlog.Your inputs have helped us planand achieve a rate of productevolution that reects our com-

mitment to provide an activeSupport & Enhancement Serv-ice that is second to none in theindustry. With continued feed-back from all of you we can becondent that our developments

are focused and address realneeds within the petrophysicalcommunity.

TechArts made

by Techlog

4-7 June 2006,

SPWLA in Veracruz

TECHSIANEWS

Januar

y

2007

In this issueWorldwide expansion! 2Events! 5Techlog V2006.2 & V2006.3! 8Technical focus! 21

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Worldwide expansion

To better serve our client network we are expandingworldwide. Our subsidiaries main focus is to achieve threegoals: to be closer to our clients, thus to enable better directsupport of our regional customers; to provide training and

consultancy in the use of our products; to further promoteand introduce our latest developments and workows.

Our local support teams provide on-going day-to-day sup-port to our clients within similar time-zones and workingweeks to ensure all users rapidly become procient in utiliz-ing all aspects of the Techlog platform.

Backed up by our global Techlog support team based inMontpellier, we provide 24/7 on-call assistance to ensurethat our clients get the help they need, where they need it,as quickly as possible.

When consulting assistance is requested or when training iscalled for to address those special projects or workows, ourpeople can respond to your enquiries and requestspromptly. We currently run courses on-site in client ofcesdedicated to each client company and plan to expand ourprovision of training to include open-industry courses from

our regional ofce bases. We regularly provide technicalassistance in projects from database clean-ups to detailedreservoir rock-typing using the power of the Techlog suiteto provide new and efcient workows to address age-old

problems.

Techlog is changing the way the industry is managing itspetrophysical data.

To these ends, Techsia Inc was launched in Houston, Texason December 12, 2005, followed by our second subsidiary,Techsia Middle East LLC in Muscat, Oman on May 24,2006. Further subsidiaries are planned for the near future,starting with our Asian subsidiary earmarked for Malaysia.

We are actively recruiting petrophysicists with a variety oflanguage and cultural backgrounds to assist our supportteams to meet the demands of the international commu-nity.

2

TECHSIANEWSJanuary,2007

Expanding worldwide to be closer to you

Techsia Inc! 3Techsia Middle East LLC! 4

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Techsia IncA multicultural winning team

Techsia Inc was launched in December 2005. The setting-

up phase was instrumental in preparing the ground for

Aghogho Udi and Jos Silva to take over support of our

regional client sites and perform demonstrations for future

clients from July 2006. Richard Ellam has since joined the

team in September 2006 as Techsia Incs General Manager

and Executive Vice President, and we welcome him to the

team. Let us introduce the team to you!

Richard Ellam joined Techsia as Regional Manager,

Techsia Inc., in September, 2006. Richard has over 12 year

experience in the

oil and gas indus-

try with Schlum-

berger Wireline

working speci-

cally in the petro-

physical domain.

After graduatingfrom Bristol Uni-

versity with a rst

class honours

degree in Aero-

space Engineer-

ing, he embarked

on a career in

the highly tech-

nical oil industry

wi th Sch lum-

berger.

With over 7 years experience as a Wireline logging engi-neer, having front line experience in a range of land and

offshore environments in many locations around the world

covering the Middle East, the North Sea, Russia, West Af-

rica and the US., Richard has extensive experience of

Wireline data and sample gathering. In particular, his ex-

perience in operations spans the application of all types of

wireline and LWD data to petrophysical evaluation; he has

worked on the acquisition of pressure and uid sample

data, NMR, sidewall coring, seismic surveys, perforating

technology, production logging and cement evaluation.

After this broad base in front-line acquisition work Rich-

ard has a further 6 years experience in Operational Man-

agement with specic application to Service Quality, Serv-

ice Delivery, Product Development and Operations Man-

agement. Richard is managing our Techsia Inc subsidiary,

and we welcome him to the Techsia team.

Aghogho Udi received his degree in Petroleum engineer-

ing from the University of Port-Harcourt, (Nigeria) in

August 2000 and his Master of Science in Petroleum Geo-

science and Management at Manchester University,

(United Kingdom) in September 2001.

He started working for Shell Petroleum Development

Company, (Port Harcourt - Nigeria) as a Wellsite Engineer/

Geologist in February 1998. He followed that with a spell at

BP Exploration Operating Company, (Dyce Aberdeen -

UK), being employed as a geologist until June 2002 when

he took a position as a Drilling Service Engineer with

Schlumberger Drilling & Measurement, (Louisiana). Four

years later he joined Techsia Inc as a petrophysicist working

on regional support and training based in Houston.

Jose Silva entered his career in the oileld in 1998 study-

ing Geophysical Engineering at the Simon Bolivar Univer-

sity, one of the most prestigious universities in Venezuela.

He began his working career as a Geophysics Engineer in

PDVSA in 2002 as an intern to do Seismic and Structural

Interpretation in the Lake Maracaibo Catatumbo Area.

After a successful internship in PDVSA he started working

for Petrozuata (a joint venture between ConocoPhillips and

PDVSA).

In late 2004, he joined Schlumberger to work overseas in

the Gulf of Mexico as a Field Engineer (LWD/MWD

services).

In July 2006 he joined Techsia Inc as a Petrophysicist based

in Houston dedicated to regional support and training.

We are very happy to count on both Aghogho and Jose at

Techsia Inc. As a team they provide a very effective support

operation and have quickly developed a ne rapport with

their growing client base. We are delighted that they have

joined us!

TECHSIA INC - USA

10777 Westheimer,

Suite 1100Houston, TX 77042

T +1 713 260 9686

F +1 713 260 9687

3


Richard EllamRichard Ellam joined Techsia in Septem-

ber 2006 to be Techsia Inc General Man-

ager.

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Techsia Middle East LLCis open for business

Established on 24 May 2006, Techsia Middle East LLC,

ofcially opened its doors for business in the region at the

beginning of September. Operating out of the Knowledge

Oasis Muscat, a compound of IT specialist companies inthe Sultanate of Oman, Dr. Chris Chouker and his team

will provide diverse petrophysical services to the oil indus-

tries in the Middle East region. The present staff consists

of two petrophysicists and one Ofce Manager, Andrea

Schuster. The current client list is increasing rapidly due to

the quality of the product and the professional support

provided out of Muscat.

As more and more E&P companies throughout the Middle

East Region become interested in implementing Techlog,

the on-site support provided by Techsia Middle East LLC

will spread to other countries throughout the Gulf. In keep-ing with the goals of Techsia subsidiaries, Techsia Middle

East LLC also offers special case studies and trainings, both

software and petrophysical, based out of the ofce here in

Muscat.

Dr. Chris Chouker has been appointed General Man-

ager of Techsia Middle East LLC. Chris holds a diploma

degree in Geophysics and a PhD in natural sciences. Before

joining Techsia in

2 0 0 5 C h r i s

gained over 13

years of experi-

ence in the oil

and gas industry.

His career started

as a wireline eld

engineer in the

Middle East and

Cent ra l and

Eastern Europe.

Later he worked

as Senior Petro-

physicist and

Lead Petrophysi-

cist in two Euro-pean oil and gas

companies operating in both Central Europe and North

Africa.

Michael Mayerboeck graduated from the Mining Uni-

versity of Leoben in 2004 as a petroleum engineer with a

major in applied geosciences. Before joining Techsia in late

2005, he acquired experience with Siemens, RAG and

OMV. Currently Michael is the support manager for Tech-

sia Middle East LLC in Muscat, Oman.

Andrea Schuster graduated from the University of Vi-enna with a Masters degree in International Business Ad-

ministration and joined Techsia as Ofce Manager in Sep-

tember 2006. Prior to joining Techsia, Andrea gained ex-

perience with an Austrian oil and gas company operating

in Central Europe and North Africa.

TECHSIA LLC - OMAN

Knowledge Oasis Muscat

PO Box 32 Rusayl 124

Sultanate of Oman

T +968 95 41 58 91

4


Chris ChoukerDr. Chris Chouker joined Techsia in

August 2005 to be Techsia Middle East

LLC General Manager.

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Events

As we do each year, we had the pleasure to participate in the

SPWLA International Symposium and Exhibition held from

4-7 June 2006 in Veracruz, Mexico. Following the habit of

previous years, we installed a stand in the Exhibition area

and welcomed clients, observers, and other interested persons

to a series of presentations during the two and a half days of

the exhibition.

Visitors to the stand took the opportunity to catch up with us

on our latest developments and to informally chat with our

management and support teams. We provided 4 to 5 sched-

uled demonstrations each day lasting around 90 minutes

each. Brian Moss, the senior petrophysicist present, led these

events and was on hand to answer questions and perform

more specic demos at client request in between times. The

main demonstrations not only gave information on our cur-

rent tools but also on our planned developments, many

of these being based specically on clients feedback and

requirements.

Other members of the technical team were also engaged full-

time during the exhibition in discussions and small one-on-

one demonstrations for many interested enquirers.

Each year the interest in our products grows and the number

of attendees increases: over 200 people enjoyed the demon-

strations this year!

We are looking forward to meeting you all again at SPWLA

2007 in Austin, Texas (June 3-6, 2007)!

5


A dedicated and multilingual team com-

posed of top management members, ad-

vanced petrophysicists, IT engineers and

international coordinators to introduce

you to Techsias world

SPWLA 2006! 6

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SPWLA 2006Veracruz

Our attendance at the Exhibition is a very impor-

tant part of our calendar. The event provides an

unparalleled opportunity to engage with existing

clients and meet with new, prospective clients to

showcase our pace of development, of which we

are justiably proud.

And we dont just talk during the meeting; we lis-

ten hard to what our colleagues in the business are

telling us are the main issues they face in their day-

to-day tasks. All of this excellent information is fed

back to our development team, sifted, prioritized

and integrated with the plans in place. Key, repre-

sentative users from amongst our growing user-

base are then involved each quarter in planningthe next months main development tasks. In this

way we ensure no-one feels left out of the devel-

opment process.

Our clients tell us that we have a different ap-

proach compared to other vendors. We are appre-

ciated for our distinctive way of thinking and the

clear communication of our vision.

For instance, we were complimented at Veracruz

on our TechArt pictures. Nobody had quite

looked at petrophysical data in this way before.

How did this set of pictures come about? Well, we

had looked at many Techlog displays of modernlogging and core data and thought these images

are strikingly beautiful. We imagined an exhibi-

tion an art exhibition - where the pictures on the

walls were all derived from petrophysical data. So

was born our campaign The Art of Science.

Numerous visiting petrophysicists tried to guess

whether the data displayed on the postcards were

the work of artists or were produced by Techlog;

when it was revealed that all were produced in the

software, from real data, the common reaction was

astonishment at the breadth of capabilities in-cluded in the plotting features in the software.

To better know the SPWLA host country and to

support the local economy, we choose to work

each year with local companies to set up our

booth. This year was no exception, and our coor-

6


TechArt every-

whereWe launched our

TechArt campaign at

the SPWLA during

which visitors could

enjoy the TechArt

postcards, movies

and art gallery.

Your Techlog platform is impressive;

we cant wait to see your Borehole

Image processing module (BHI) in ac-

tion

Demo attendee

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dination and design team was very pleased to work

with local contractors. Together we created an

innovative, attractive and functional environment

in which to offer our guests our dedicated atten-

tion whilst encouraging a free ow of ideas and

exchange.

We look forward to meeting with you all again at

the next SPWLA to be held in June (3-6) 2007 in

Austin, Texas.

Watch this space for news of our imaging tools,

our thin-bed-analysis module, our new contact

management tools, our new saturation-height

modeling capability and our new dataset splicing

tools amongst other new ways of visualizing, man-

aging and extracting the most from your data.

Move to more, move to Techlog.

7


The art of

science

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Techlog 2006.2 & 2006.3The comprehensive and fully interactivemulti-well petrophysical solutionIt has been two months now since Techlog 2006.3 was

launched. This release is considered as major by the petro-

physics community and we are proud to introduce the new

developments to our readers. To facilitate the understanding

of the interaction between Techlog platform and its growing

number of modules, a road sign has been designed.

On the next page, you will nd the improvement list of both

releases 2006.2 and 2006.3. We will have a particular look at

the Quanti new properties editor, Techplot and Techdata

new families editor

CoreDB, the new way of managing core data has been deliv-

ered to Total. We will have a closer look at it.

8


I believe Techlog is a third millennium

package, robust, multifunctional and easy

to develop/implement new applications.

Shell senior petrophysicist

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Improvement list

RELEASENOTES November, 2006Techlog 2006.2 & 2006.3

Techdata > ImportTechlog 2006.2 OpenSpirit 2.9 import now working from both Open Works and Recall.

Import from OW is working well and fast, good for starting a new project fromscratch, but can also be used to clean up well header info.

DLIS import improvements (better management of the dataset names and properties, bigles)

Techlog 2006.3

Possibility to load DLIS in two steps to make this you need to select Selective DLIS im-port inside the import type list. This method is especially interesting for the import oflarge les. During the rst step only the well/dataset/variable information is read, after

that the user can select manually the data which should be imported (the user can also loada previously saved selection of data)

The LAS le and Geolog ASCII le load time improved (~10 times faster)

The import of a le from the Windows explorer can be done by simple drag and dropinside the Techlog workspace

Techlog OpenSpirit connection is working also with the 2.8 version of OpenSpirit

Better handling of operational daily updates (e.g. LWD). Now possible to append data toexisting dataset from the project browser

ASCII data wizard: the dataset type can be changed even if the input le type is top bot-tom

Better management of the innity values (NaN, INF) during the import of ASCII les

New families are dened to be included inside the reference dataset: Loggers, DrillersDepth, Depth Below Mudline, MD Reference 1

Techlog 2006.3.6

Creation of a Data Selection as a template directly from the project browser

> Properties

Techlog 2006.3

In the properties window, a green bar shows which properties are editable.

The name of the current object is displayed in the property header

Techlog 2006.3.2

Possibility to have a quick property access (move the properties to the mouse cursor) usingF4 shortcut

> Shortcut system

Techlog 2006.3

A new shortcut system is available involving key sequences, more tools are available fromthis new system

9


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Techdata > Additional variable types

Techlog 2006.2

Three blocked curve types are available (blocked, centered and inverted)

Two text curve types (simple and rich text) for better management of zone text in layout.

Techlog 2006.3

Added dip, casing shoes, cumulative array

> Additional dataset types

Techlog 2006.2

Variable group properties (to cater for logging pass info from Recall)

Techlog 2006.3

Added dataset type of wavelet used by Geophi

> Families

Techlog 2006.2 Additional options to dene line type + thickness and palettes by family.

Color, line style denition for most of the usual curves, Schlumberger standard taken asexample

Family tree changes, less granularity, new main families.

Core data Routine (Core porosities and permeabilities were move to here)

Core data Special

Mud Logs

Production Logging

Pulsed Neutron

With a good number of new families in each and with relevant family assignment rules for

a selection of standard contractor curve names. 2 options to preview effect of family changes (e.g. such as the move to a new version):

A Test only button is added to the Family assignment interface. This will show all thechanges in the message window in the bottom.

A script is available to create a CSV le (in data listing all the variables that will changefamily)

Techlog 2006.3

Added new families for BHI (dip, buttons), Geophi, Geo-mechanics

Added several family assignment rules (Halliburton)

Speed improvements of the aliases loading

> Multi-user session

Techlog 2006.3

Added new option to unlock the project at exit

Added possibility to dene a project to be opened directly in multi-user mode

> Unit system

Techlog 2006.3

Update to POSC unit system version 2.2 (new units are available and some conversionfactors are updated)

10


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Techdata > Workspace

Techlog 2006.3

When the workspace/project are closed you have a dialog asking if you want to close withor without saving all the windows or select individually to close like in the old Techlog ver-sions

Bi-screen: some dialogs are displayed in the middle of the particular screen where the cur-sor is present instead of in the middle of both screens

Possibility to enlarge vertically, horizontally or on the current screen (if you have bi-screen)using shortcuts (Ctrl+Shift+Click, Shift+Click, Ctrl+Click)

> Project browser

Techlog 2006.2

Option to cancel opening of a project

Possibility to save/open depth plot, cross-plot, histogram at User, Project, etc. levels

Techlog 2006.3

The delete and delete denitely actions have better distinction of the text and visualaspect of the dialog

Most of the Techlog objects (palettes, Python scripts, layouts) can be saved and loadedfrom the context menu from different levels (User/Project/Company/Techsia)

The conditional selection respects hierarchical order in its specication

The conditional selection and hierarchical grouping can be save, loaded as projectobjects

Speed improvement

> Resampling tool

Techlog 2006.3

All the continuous data resampling methods have anti-aliasinglter added

New method is added for linear anti-aliasing with special management of the over andunder sampling

The linear interpolation algorithm respects the original missing value samples

Point data shift now has maximum shift specied

Better detection of the logarithmic scale of the variable to dene the appropriate datatransformation

Techlog 2006.3.2

Specic management of the resampling of variable with angle degree (dega) unit (man-agement of the 360 wrapping)

> Harmonized dataset

Techlog 2006.2

Now possible to set to well alias for multiple changes

Techlog 2006.3

Possibility to update existing harmonized datasets (add variables, overwrite variable, re-place the missing values of existing variables)

The default resampling method for the continuous variable is the same as dened in theproperties of the project browser (is no more the linear interpolation)

11


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Techdata > Inventories

Techlog 2006.3

In the Variable list, there is now the possibility to access to the variables properties

Possibility to update existing harmonized datasets (add variables, overwrite variable, re-place the missing values of existing variables)

Project browser automatic refreshing after deleting or renaming actions from the inventorywindow

In the variable list, possibility to access to the variable properties

Alphanumerical columns enhancements

> Data editor

Techlog 2006.3

Possibility to dene conditions inside the equation, examples: SW if0 < SW < 1 elseMissingValue; MissingValue if1206.5 < MD < 1240.1 else SW

> TVD computation

Techlog 2006.3

The computation can now be done from a tie point

Added a new method Radius curvature

> Multi well zone editor

Techlog 2006.2

The user can now change the reference (to e.g. TVDSS), edit tops in this reference, andapply, to save it as a new zonation. The tops are then saved in a new data-set (xxx_2)with the reference in the new system (TVDSS in this case), having the right family, so thetops will plot on depth automatically when taken from this set..

Inserting a zone is now possible (was added at the back)

Adding TD is a new option to get the bottom zone meaningfully in depth plots, Quantiworkows, etc. (RMB in tops editor to get the option). It will take the TD from the wellproperties, or otherwise the deepest data-set depth.

Zonation_All creation now possible on ltered project

Techlog 2006.3

New interface of the Zone Editor including the zones being displayed as rows and thewells as columns

Multiple occurrences of the zones can be displayed and modied

The top and bottom of each zone can displayed and edited

The zones and wells can be ordered by the user or sorted All the tops and bottoms can be displayed and edited in different units and reference fami-

lies

A contact can be added in order to split a zone usinguid information

The display and save precision can be dened as a property of the Zone Editor

The table can be copied and pasted from/to Excel

Apply button is replaced with a Save icon button

> Export

Techlog 2006.3

Fixed errors on the export of large dataset as CSV le

Petrel LAS export (the unit m is replaced by M)

Better management of the innity value during the ASCII le export

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Techdata > Zonation

Techlog 2006.3.2

The default zone colour for zone "ALL" is setup to pale blue

> Database operations

Techlog 2006.3.2

Speed and memory use optimisation (add/modify/delete variable or array operations;data properties information loading)

> Folder management

Techlog 2006.3.3

Better folder management (possibility to have several project folders, easier switch betweenseveral company folders, enhanced conguration le management)

> Python

Techlog 2006.2

Better management / availability of company library of scripts.

Techlog 2006.3

Version 2.5 of Python is used. New inside this version: memory and speed optimisation,conditional statement function

New folder is specied as the external folder for version 2.5 scripts (if .pyc les that werecompiled with version 2.4 are present inside this new folder at the User, Project or Com-pany level, these should be recompiled with Python version 2.5

Better distinction between oat division / vs. // integer division

Better ASCII codecs management of scripts (for non Latin text present inside the scripte.g. Russian les) {new Python scripts}

The scripts can be saved from Python editor as being compatible with the old Techlog ver-sion or only as new Python version.

Automatic indentation implemented on typing the : character followed by carriage re-turn (and LOOP should now be written with : at the end (LOOP:) to conform withPython operators

Possibility to add or remove a Tab on selection of lines with Tab and Ctrl+Tab

More scripts are available inside the Techlog distribution package (including tutorial scriptsand several different examples)

The script can be saved with description parameters (author, date, version, external docu-mentation link)

Additional Python libraries are available with access to Techplot objects and/or dialogs

(TechlogDialog, TechlogDialogAdvanced, TechlogPlot) The sort operation of parameters is no longer automatic; you have an additional dialog to

conrm or not this operation in order to avoid unwanted sorting of the parameters

The line numbers of those lines with errors are now correctly displayed

Techlog 2006.3.2

Duplicated variable detection script (speed and memory used optimisation)

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Techplot > GlobalTechlog 2006.3

Additional patterns/textures are present and the name of the existing patterns were har-monized

New standard lithology palettes

The user display boundaries are preserved by default

> Histogram

Techlog 2006.3

The cumulative frequency grid is now the main grid and no more the relative frequencygrid

> Chart

Techlog 2006.3.3

Update of the neutron density charts

> Cross-plots

Techlog 2006.2

Better recognition of what variables are x, y, lter, color etc in the left window.

Easy entry of y=x equation.

More intuitive management ofxing slope / intercept

Better management of selecting points / polygons etc.

Techlog 2006.3

Fixed point regression with graphical control

Possibility to move all the points together for one custom regression

Multiple regression lines can be selected and modied at one time

The estimated condence interval about the line and the estimated prediction condencecan be displayed on the cross-plot

Better management of the units in multi well: if the unit are not harmonized they are con-verted on the y if it is possible

The size of the markers can be dened by a variable

The prediction and condence intervals can be displayed

Possibility to apply the change of the modication of one equation and keep the dialogopened

> Printing

Techlog 2006.2

Scaling / tting to page size now independent in horizontal and vertical directions

Saving from print module to CGM and other formats. This also allows easy plot to onepage tting CGM le, importable to word / ppt les.

Dashing still problematic to get on the print.

Techlog 2006.3

CGM: better management of patterns/textures

CGM: better management of the dashed lines

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Techplot > Depth matchingTechlog 2006.2

New mode added that allows

depth shifting to outside the dataset

inserting depth pairs anywhere, also between core points (now, the from depth issnapping to core plug depths)

depth shift a whole dataset (applying this modi

es the reference curve in an inverseway, rather than shifting point data; the original depth reference is renamed and keptin the dataset)

Possible now to load an existing transformation to use as starting point, edit etc.

Techlog 2006.3

The depth match function uses the linear anti-aliasing data resampling

Simplication and clarication of the workow

> Depth plots

Techlog 2006.2

Interactive changing of tops (of existing zonation; add/insert tops interactively will beavailable in the next version)

Old single well layouts can now be converted to Multi Well Layout (provided no trackscontain variables from different wells)

Move wells / change order / remove (select well in header and use arrows or delete)

Flipping scale can be done in property window

Palettes: possibility to ll with one colour, pattern.

Dual palettes now possible with patterns (before only colours)

Change the order of palettes that overlay (select the shading in the track header or thetrack - arrow up / down)

Database actions from the menu (delete variables, dene variable as well alias)

Set variable to any constant over the selection.

Techlog 2006.3

Variable editing (draw mode)

Graphical variable creation (spline or linear interpolation between user dened points)

Better display of the dashed lines

A new special display for dip data

A new special display for casing shoes

An image and/or text can be displayed as interval data or centred on one depth (descrip-tion on single depth or thin-section image)

Histograms and cross-plots can be displayed inside dedicated tracks (by zone or by top and

bottom)

Better management of the display of up going wells

Possibility to create automatically an array (example of multi-mineral) in a dedicated spe-cial track

Synthetic seismogram variables can be displayed as a seismic array if they are concate-nated manually as an array

Generic variable (Alias or Family) can be inserted inside a track even if they are not pre-sent in the well (important functionality to create a generic template layout)

Track width can be dened in centimeters cm or inch in unit

The value used inside the processing dialogs are saved and used by default on the next useof the same processing

The main reference track have default different appearance

Single well layout is not present inside the tool bar

Possibility to use logarithmic transformation before smooth the data

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> Graphical zone edit

Techlog 2006.2

Interactive changing of tops of existing zonation

Techlog 2006.3

Zones can be graphically created and edited (several modes of picking new zones areavailable)

Quanti > Global

Techlog 2006.2

Multi zone entry: only the rst entry will be shown the top and bottom in the parametertable(s), but all subsequent penetrations will be processed now as well. This allows deningparameters by facies / uids etc.

Techlog 2006.3

Previously computed values outside the current zone can be now preserved

More computation parameters can be entered as variables

All the optional input parameters can be switched to zone constant values

Reorganisation of the properties of Quanti methods

The Quanti workow propagation into a new well is easier now: can be done by simplyapplying if all the parameters are well dened and the cascade mode is activated

Qv computation methods are added: QVn, QV function of CEC

Automatic recognition of output curve names in subsequent Quanti methods

Possibility to disable the output in the properties

Speed improvements of table manipulations

Better management of the innity values in the computations

TechMath method is available with some data processing options like smooth, spline, de-spike

> Parameter management

Techlog 2006.2

Parameter table now split into 4 parts:

Reservoir (or project)

Zones

Wells

Well/zones (the present Techlog parameter table)

At the user request, the data from these 3 levels can be progress into the 4th part,which represents the present Techlog parameter table.The 3 new levels can each be hidden independently if so desired.

Parameter sets from all 4 levels can be saved and retrieved independently

The unit columns can be hidden

Wheel motion is faster / more uent.

Pressing CNTL with wheel motion only updates plot on mouse release (option for heavierQuanti workows or when user dened plot is used).

Techlog 2006.3

Fill down at zone level implemented

16


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Quanti > Porosity

Techlog 2006.3

Remove the lithology input for the hydrocarbon correction

Addtitional parameters (inversion exponent, m, n) can be dened for hydrocarbon correc-tion

Techlog 2006.3.3

The neutron-density porosity method propose the possibility to select the tool type (NPHI,BA2435, BA2420, APLS, TNPH)

> Volume of shale

Techlog 2006.3

Calculation of unclipped VSH now added

> Saturation

Techlog 2006.3

BVW output automatically computed Correction to the Waxman-Smits B parameter

> Summation

Techlog 2006.2

Summation in TVD / TVDSS is now possible

Other averaging techniques (harmonic and geometric) now also available for the addi-tional variables.

Techlog 2006.3

Better distinction between the net, non-net and unknown values

Better display of the sensitivity plot

Better management of the threshold signs (=)

Better display of the results inside the depth plot

Additional output of the Pay outputs

Better output display and speed improvements

Include weight fraction (between 0 and 1) input variable

> Quanti custom - Python scripts

Techlog 2006.2

Python scripts can be organized such that company standard scripts will be availablefrom a pull down menu and do not have to be imported into the project anymore.

When calling a Python script in a workow, the user is now also rst presented with thefamily/alias selection dialogue box, just like with Techlog Quanti modules. This providesmore unity and exibility in use.

Techlog 2006.3

Access to the Python script description and documentation link

The output variables now have automatically assigned any description dened inside thePython script

Monte-Carlo option is available

17


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> Pickett plot

Techlog 2006.2

Pickett plot with inverse axes (porosity horizontal) is available (not the ofcial Pickettplot).

More interactivity between parameter sub-window and regression / selection of points.

Techlog 2006.3

The parameters a, m, n and Rw can be managed from the properties of thecross-plot avoids losing the parameter window

The Pickett plot can be saved/loaded/duplicated as a normal cross-plot

Quanti.min > GlobalTechlog 2006.2

Sequential quadratic programming algorithm implementation.

Techlog 2006.3

Possibility to have a quick cross-plot display of the input data and graphical parameterselection

Better Waxman-Smits management of QV as input curve

Better management of a text variable as the partition input

SIGF variable with default constants is added to the default mineralogical system table

The dry clay points are used for the computation of PhitShale inside Dual-Water, Juhaszand Simandoux

Possibility to save the PHI, SXO and SW output curves directly

Fluid parameter have defaults in the mineral uid tables

> Neutron equations

Techlog 2006.3.3

Management of non-linear equations (tool types: NPHI, THPH, SNP, APLS)

Geophi Techlog 2006.2 Depth Time tables using 4 methods: checkshot only, Sonic only, least square t and

forced t

Depth to Time conversion including anti-aliasing

ltering Gassmann uid substitution

Butterworth trapezoid and Ricker wavelet lters

Impedance, reection co-efcient, RFC Synthetic and Run Sum Synthetic

Techlog 2006.3

Improvement of the Synthetics modules computations: impedance, reection co-efcient,RFC Synthetic and Run Sum Synthetic

Additional lters are available inside the well synthetic module: sync, Bessel, Chebyshev,wavelet

Graphical check shot editor is available to analyse the drift between the sonic and thecheck shot data

18


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BHI > GlobalTechlog 2006.3

Speed corrections of FMI tool

Pad concatenation of FMI tool

Normalisation methods (windowed or not windowed): histogram equalisation or normal

Processing methods: edge detection, smoothinglters

Manual dip picking available graphically Image attening tool

Techlog 2006.3.2

Improve management of large les

> Speed correction

Techlog 2006.3.2

Default selection of speed corrected images

> Normalisation

Techlog 2006.3.2

Speed and memory use optimisations

Ipsom Techlog 2006.3 Option to dene if you want to display only the result in the model datasets

Techcore > GlobalTechlog 2006.3

Small improvements to the Lambda method: possibility to use automatic weighting factorson the pressure axis

Relative permeability workow is added (resampling, draining and imbibitions computa-

tion using Buckley-Leverett, Corey, Brooks-Corey, Land, Killough equations)

> Resampling

Techlog 2006.3.5

The application 'Angle interpolation' is extented for all variables compatible with unit"dega"

> Multiwell

Techlog 2006.3.3

Possibility to extend the proposed reference family with the reference data present in thewell

19


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> Array editor

Techlog 2006.3

A new dedicated editor for array

User guide Techlog 2006.3 The folder of the user guide can be modied by the user (the advantage of this system is

the possibility to update the user guide independently of the Techlog version and the pos-sibility to add a lot of video explanation clips without requiring special network/administrator permissions)

Improvements and updates of both user guide and existing tutorials

New tutorials: Quanti.min, Geophi, BHI

Techlog 2006.3.2

Geophi

BHI

Quanti.min : tutorial integration in online help. Quanti updates

Flushed zone saturation (Archie, water, Juhasz, total shale, Waxman smits, dispersedshale, indonesia, Simandoux, shale)

QV function of CEC

Qvn

Summaries

Qceld updates

Well Editor

Inventory tools

Corrections

Data harmonization

Wells classication

Techplot

PCU-project browser

Curve Edition Logview

Printing

Techdata updates

Graphical zone editor - zonation editor

Zonation editor

20


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FocusLets have a closer lookThis chapter aims at giving some specic information on

specic modules. All these articles are written by Techsia

team members.

In this rst TECHSIANEWS, Richard Ellam and Thomas

Ribreau, a former CoreDB developer and now in charge of

marketing, will show you how CoreDB can assist oil compa-

nies to secure and retrieve any core information.

Yasmina Kechida, a dynamic newly-hired petrophysicist and

Vlizar Vesselinov will demonstrate how much precious user

time can be saved using Python with Techlog.

21

"Only the foolish learn from experience

the wise learn from the experience of oth-

ers."

Attributed to Romanian folk wisdom by Rolf Hochhuth

CoreDB! 22

Deeper with Python! 24Enhancements! 27

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CoreDBImport, view and manageBy Richard Ellam and Thomas Ribreau

The status quo.

Data is your companys primary asset, and manag-

ing its integrity is critical. Information can become

dispersed, and without strict adherence to data

storage standards companies can lose time and

money retrieving and harmonizing data, as well as

risk losing it at any time. In addition any data

modication brings risk, and to mitigate that risk

its key to keep track of where data is and how it

was changed, and that is easier said than done. All

of these issues prevent a company from making

informed decisions in an efcient manner.

Your needs - storage, controland accessibility

Introducing CoreDB, a dedicated core informa-

tion database system for the 21st century. Firstly a

robust and efcient data storage - that is the rea-

son why CoreDB is based on an Oracle database

and is able to manage huge quantities of core

data. Secondly a clear and organized storage for-

mat, ensuring your coredata remains ordered,

controlled, managed and fully traceable through-

out its lifetime. Thirdly and not least, providing

full access to your data through a common inter-

face - using a standard web browser and an easy-

to-use graphical interface, anyone can search,visualize, generate inventories, export... any selec-

tion of the corporate data.

22


CoreDB has been designed with real

Oil & Gas companies in mind, to ad-

dress a real need.CoreDB Project manager

Core data is your primary asset, maximize its impact on your business

Manage, organize and display your core data to your key users

Filter

Using an advanced query editor, CoreDB lets users

lter any kind of core, geographical or user informa-tion.

Inventory

CoreDB provides mono or multi wellbore inventory

by grouping core information on measurements and

conditions.

Locate user data

within Countries, Fields, Wells, User-dened group-

ings, Curve types, Curve families, curve data, re-

ports, photos, images...

View user data

Enhanced Plotting Ability full user access to pre

dened standard plot templates to visualize your

data, with full customization of plots, histograms

and logs.Data Editor

Depending on one's rights, a user can control and

edit core data directly from a web browser.

Export your plots and data

to report formats, excel and full drag and drop ex-

port to Techlog.

Core Picture browser

A click on a sample to bring the corresponding core

picture point vs, a click on the core picture sample

icon brings the sample info.

Traceability

CoreDB keeps user activity history that can be ac-

cessed from the administrator console.

1

2

3

4

5

6

1

2

3

4

5

6

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Accessibility

The comprehensive range of CoreDB functional-

ity is fully accessible through an IE session, ena-

bling secure and controlled access to your corpo-

rate core database to any approved user at any

time. CoreDB further offers a seamless integration

of the CoreDB environment to Techlog, with sim-

ple drag and drop data accessibility.

Easy population of the CoreDB database from your exis-

tent databases or any formatted file media.

Complete access to your core data from any standard

web browser environment

Ease of data Import

Simple and efcient importation of your existing

core data to the CoreDB environment with utiliza-

tion of templates to further enable batch import

workows. The CoreDB database structure can befully customized to manage any format of client

data. Full control on import to cut, slice and con-

catenate images.

CSV text format importation with the CoreDB loader.

Core picture importation with the CoreDB loader.

Data Mining

A fast and efcient ability to inventory or lter to

data of interest. Filters applied at log out are

automatically reloaded on log in, lters can be

further saved for reuse. Advanced query formula

editor, to enable accurate and specic interroga-

tion of corporate data.

Advanced query formula editor

A formula can use parenthesis with AND, OR and EX-CEPT logical operator

Image Viewer

Full view access to core images, with ability to

scroll, zoom in/out, switch resolution and through

auto placement of hotlink icons directly on the

core image, quickly link from the core image to a

experiment or a subsequent slice image from its

relevant depth.

Advanced Plotter and ReportExport

Full user access to dene, create and save detailed

custom Xplots, curev plots and histograms to fully

visualize your core data. These plot templates can

be saved for reuse on a corporate level. Preloaded

templates to visualize common industry standard

plots. Full ability to export plot reports and data to

common ofce applications.

Dual Grain Size Histogram display

CoreDB is generating a lot interest in the industrydue to its unique approach at solving a commonproblem.

23


Browsing information

Excel spread-

sheets, CSVfiles...

CompanysFile Migration

Any ODBC or

SQL data-bases.

Companydatabase

Based on Ora-

cle

database

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Deeper with PythonBy Yasmina Kechida and Vlizar Vesselinov

The objective of this article is to give some hints on how to create and run Python scripts. We will use

examples with a range of useful structures to illustrate how to manage a script. For more details Techsia

provide a tutorial dataset and example scripts during the training: Techlog Advanced Course.

For a rst example, we will write a script to calculate water saturation from a choice of either a function

of porosity class and height above free-water-level, or from an input log-derived curve.

The rst step consists in specifying (declaring) the input and output variables: PHI, DEPTH,

SWLOG and a parameter called FWL, together with a means to choose the Method, which we will

dene with an input String (A string will be read as a literal collection of characters). We also need

to dene our output curve. These inputs and the output are shown in the following table:

We distinguish the written declaration in uppercase PHI as the variable name, and the system returns in

lowercase the label phi as the value of the variable depth-by-depth. The order of the declaration

lines in the list is not important, except for clarity of understanding the ow. The order can be adjusted

by the script creator.

For the script to process over all values present in a curve, the user simply invokes a pre-built function

called LOOP: in the appropriate part of the code; there is no lengthy coding of data-housekeeping

routines required.

Remarks on line indentationEach indented line after the LOOP statement will be considered as being inside the LOOP. When a line is typed for which the indents areall removed, this denotes the nish of the LOOP and the beginning of another segment of the script.

The calculation phase inside the if method paragraphs is terminated by the statement containing elif method. The if and elif linesare indented by the same number of indents, so they are related as steps of the same conditional reasoning statement.

Note the clarity and simplicity of the Python script.

This script can be run stand-alone on a specic well because an explicit identication has been incor-

porated in the declaration lines (see Fig 1), or it can be included within a Quanti Table (also known as a

Quanti Workow) as a Quanti Custom object. The script then becomes available across multiple

wells and multiple zones without the user having to create any detailed data-housekeeping routines.

Other equations and/or scripts may be invoked in the same Quanti Workow.

24


Fig 1: Variable and/

or constant speci-

cation of the Python

script

Fig 2: The Python

script

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In this rst example, when the script is included in the Quanti Table, the FWL input parameter and the

choice of Method may be set zone-by-zone. Furthermore, the FWL parameter could be controlled

by a graphical wheel tool available in the Quanti Table if its precise value needed adjusting.

As a second example we will call directly a predened function library from within Quanti by using the

Python function, import. We have the possibility to see all the functions of Quanti available in Py-

thon with the following script:

What the above simple script does is to load our entire pre-dened petrophysical calculation library

called TechlogQuanti into a newly created variable called simply q; it then invokes the in-built help

function to list the contents of q.

By way of example, we see how to call the function vshGammaRay(...) in our previous script. Below is

shown the Python denition of this function:

vshGammaRay(...)

Return the computed shale volume

vshGammaRay( ! arguments: gamma ray (gAPI),! ! ! gamma ray matrix (gAPI),! ! ! gamma ray shale (gAPI),! ! ! method {'Linear', 'Clavier', 'Larionov - tertiary rocks', 'Larionov -older rocks', 'Stieber - variation I', 'Stieber - Miocene and Pliocene', 'Stieber - varia-

tion II'}) )

The arguments are the values you have to specify to execute the calculation:

o gamma ray (gAPI) is the measured value corresponding to the variable GAMM

o gamma ray matrix (gAPI)= 2 is the gamma ray value of the matrix

o gamma ray shale (gAPI)=50 is the shale gamma ray value

o method invokes the particular volume of shale method to apply: Linear, of course, correspond-

ing to:

! !( )

( )matrixraygammashaleraygammamatrixraygammaraygamma

Vsh!

!

=

In our simple example (Fig 6), we dene input variables: PHIT, GAMM and a parameter called

Method as an input string. VSH is the output result of the calculation. The import function can be

inserted as a step anywhere in the calculations within the Python script, although it is good practice to

make the call to import the rst line of the script.

25


Fig 3: Inclusion of

the Python script in

a Quanti Workow

via the Quanti

Custom list.

Fig 4: the Python

script to call the

Quanti functions

that are available in

Python.

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The script can be run stand-alone or called via Quanti Custom to be applied easily over many wells and

many zones (see Fig 6). Notice again how the input parameters in the script (Fig 5) have automatically

become Zone-based (Fig 6).

An automatic layout appears by virtue of the Quanti workow, displaying the result of the script.

Where the conditions are not realized, there are no values in the output curve (see Fig 7).

26


Fig 5: the Python

script to use the

Quanti library rou-

tine for VSH calcula-

tion from gamma

ray.

Fig 6: the inclusionof the Python script

in the Quanti Table.

Fig 7: Quanti plots

showing the result

of the script calcula-

tion with the import

function

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Enhancements - two examplesLittle things make a good productBy Thomas Ribreau

Techplot-Techdata

The Techdata family list has been improved. Now, not only can users set a min-max for log display in-

dependently of the min-max for crossplot display, change the scale (linear or logarithmic) and log view

color, they can set a baseline and assign two different colors (one per side), set line type (dash, dot,

mixed...), and line thickness, etc.

Quanti

The workow design and parameterization screen has been improved. When handling multiple pa-rameters across multiple zones, users can now choose to promote, demote or assign all the values at the

same time, or they may wish to group the parameters by zone or well for efcient editing. These project-

zone- or well-level defaults are then available for quick access in the next well in the operational se-

quence or the other wells in the study after the key-well parameterisation stage.

27


A Qua nt i tab le

showing multiple

wells with multiple

zones and the des-

ignation of some

parameter values as

project-levl or zone-

level defaults.

All available families

can easily be listed

and edited. Default

attributes can be

changed and over-

ridden at a user- pro-

ject- or company-levelof application.

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Rendez-vous with next

TECHSIANEWS

The next edition of TECHSIANEWS will keep you in-

formed as to the progress and developments within our

company and products.

On the organizational side, we will bring you news of our

newly-designed client web portal and of an internalcorporate project called TIS, designed to manage the

information ow both within our company and with our

user-base.

On the technical side, Techlog 2007.1 is getting ready for

general release in March; this will be the rst major re-

lease of the year and will bring many new developments

to the users: borehole image processing module, thin bed

analysis, saturation height modelling, geophysics, splice

tool, additional environmental corrections Full details

will appear in the next issue of TECHSIANEWS!


SPWLA 2006

Techsia stand

For more information on Techlog and other Techsia products, please contact us at:

TECHSIA INC10777 Westheimer suite 1100Houston, TX 77042USAT +1 713 260 9686F +1 713 260 9687

TECHSIA SACap AlphaAvenue de lEurope, ClapiersF-34940 Montpellier cedex 9FRANCET +33 4 67 60 99 10F +33 4 67 60 20 92

TECHSIA MIDDLE EAST LLCKnowledge Oasis MuscatPO Box 32 Rusayl 124SULTANATE OF OMANT +968 95 41 58 91

www.techsia.com

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