Techlog-technical Brochure 2006

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The comprehensive and fully interactive multi-well petrophysical solution Validated by major 0&G companies, the Techlog © Suite maximises the value of your log data and core information using innovative and effective petrophysical analysis tools.

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Techlog© is a geoscience tool that

Techlog© increases the accuracy

Techlog© is a complete process-

provides core and log interpreta-

of your geological model, quanti-

ing

tion in a different way: it is an

fies your results and manages

dedicated to reservoir character-

expert enabling tool, especially

uncertainties. It also provides the

ization.

designed for interpretation of

reservoir engineer, geophysicist

wellbore data.

and geologist with an optimised

The trend-setting petrophysical software

modelling

toolbox

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and relevant static model.

and

All over the world, we stay close to you

7/24/365 on-site and on-line support Techsia operates a seven-day-a-week, 24 hour a day ("7/24/365"), customer and technical support service in various languages.

Emails

On-site support The support team delivers not only phone or webbased support but also on-site support. To be closer to our clients, Techsia SA has launched Techsia Inc, its North American subsidiary located in Houston and Techsia Middle East LLC located in Muscat (Oman).

Phone Support Techlog +33 (0)4 67 60 99 11 (Europe support) +1 713 260 9686 (North America support) +968 9541 5891 (Middle East support)

[email protected] [email protected] [email protected]

WebEx™ Conferences have been organized through WebEx. It is an efficient and reliable tool for users to express their questions and for Techsia support team to make presentations.

World wide cover North American Subsidiary Techsia Inc

10777 Weistheimer suite 1100 Houston, TX 77042 USA Tel +1 713 260 9686 Fax +1 713 260 9687

Headquarters Techsia SA

Cap Alpha Avenue de l’Europe, Clapiers F-34940 Montpellier cedex 9 FRANCE

Middle East Subsidiary Techsia Middle East LLC

Knowledge Oasis Muscat PO Box 200 Rusyal 124 SULTANATE OF OMAN Tel +1 968 95 41 58 91

Tel +33 4 67 60 99 10 Fax +33 4 67 60 20 92

Training sessions are provided by our team to help you become expert with the software. Training sessions are adaptable in length and content to suit the audience. They can be held in Montpellier, our subsidiaries or on-site in client offices. Please contact us at [email protected] if you need more information about this service.

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Training

Multi Well and Multi Sampling Rate Data Handling and Editing

Simple and efficient database Data families, aliases and units of measurements can be accessed and controlled through a friendly interface allowing users to organise and harmonise their data. Customers can create their own families, aliases and units on user, project or company levels with the possibility to assign properties for automatic displays. Project Browser maintains access to all data types stored in the project: log, core (RCAL, SCAL, descriptions), arrays, borehole images, tops/zones, perforations, checkshots, text/annotations, core photos,… The users can organise the views in the Project Browser of groups of these different data types to suit the purposes of their ongoing analysis.

Custom ASCII Families, Aliases and Units of measurements database

Data Import / Export Data can be selectively loaded via a buffer wizard from a variety of binary or ASCII file formats, e.g. LAS versions 1.2 2.0 and 3.0, CSV, plain text, and DLIS/LIS files. Techlog © provides an ASCII Wizard, a unique interface to help users manipulate and convert Custom ASCII files into internal formats. Single and multi-well, automatic detection of format parameters to speed up import of core, log, top, array data,... Techlog © provides an Image Wizard to efficiently load images such as core photos. OpenSpirit ® link to transfer log, tops and checkshots data from corporate datastores.

Data Editing, Zone Editor, Reference Management Techlog’s powerful data editing tools form an integrated interactive tool kit that allows users to enhance their data quality in reduced time. Well-data merging and splicing, depth-shifting, re-sampling, interpolating, smoothing, data clipping and splitting are some of the variety of functions included within the graphical data handling tools.

Depth shifting window showing log data superimposed on images for ultimate control

Users Manage their data in Measured Depth, True Vertical Depth, OWT, TWT or other reference data. Zone Editor is a dedicated tool to handle zones and contacts on a multi well basis.

Zone editor

With Python®, go further with your data

Due to its open source community, Python ® popularity is growing fast. Huge quantity of advanced libraries and documentation are available on the net. Archie equation test in Python script editor and player

Efficient, fast and interactive data manager

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Python ® is an interpreted programming language with an “on the fly” compilator almost similar to C++/FORTRAN ®.

Full interactivity between all viewers

Single & multi well log plotting Drag and drop data to create or extend plots. Graphical Edits of curves: depth & block shifting, smoothing, interpolation, data clipping, integration, curve drawing... Multiple curves from one or more wells can be edited at the same time. All aspects of layout designs are at user control.

Instantly, spread 2D cross section on every well. An interval selection on a log plot automatically interacts with the other corresponding plots.

Interactivity Whenever viewers involve datasets in common (with or without the same variables on display) users may select data in one viewer and see those depths highlighted and selected in all other viewers. Selections may be saved for later retrieval and/or process control.

2D Crossplot

Spectrum analyser

3D Crossplot

Techlog’s large set of viewers Full interactivity among all viewers and user control (color mode, selection mode, multiple wells, filters and zones...) make Techlog’s viewers an easy-to-use and powerfull analysis tool. Other plotting tools include array-histograms and array-array crossplots for viewing and managing multi-sampled array data. 2D/3D Cross Plots linear and non-linear, freely calculated, fixed-point or fully customizable regression tools are available on all 2D crossplots; fully interactive rotation and zoom functions, together with filtering and zone control make the 3D crossplot a highly effective data viewing tool. Spectrum analysers allow the users to display n dimensions simultaneously on 2D panel.

Histograms & Box-Plots give two different views of statistical or distribution of univariable. Matrix/Scatter Plots are a combined display of the above plots in a matrix panel as a function of variables and wells. Multi-well Histogram Multi-well Tukey Box plot

Matrix Plot

Vsh-! plots with Thomas-Stieber overlay.

With Techlog’s innovative design, visualizing your data has never been so easy.

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Quanti Plots: specialised but customisable plots for the management of parameter selection interact with the parameter tables and the results plots; users modify parameter values graphically and see the results update automatically. Plots include the Pickett Plot, Thomas-Stieber Plots, plus one-click access to Gamma Ray, Neutron and Density plots. Control of parameters on Pickett Plots can be managed through point picking, free and fixed regression, custom line construction, scroll wheels or by typing values when exactness is required..

Process and make sense of large amounts of data very quickly

Quick data mining Instantly collate available data across all wells (inventories are available for variables, families, aliases, well properties, wells, datasets, sampling rates, zones...) Identify variation in curve names, curve units, depth coverage Quantify instances of erroneous curve labels, units, etc. Automatic creation of harmonised datasets accross all wells Excel export facilities for quality print and easy report insert Project data synthesis

Harmonization Efficient Query Tool to rename, convert, delete, list Accurately ascribe mnemonics, curve labels, units Ensure simplification of data access for subsequent processing Rapidly apply consistent data conventions

Edits Rapid view of all instances of a curve to identify problem intervals

Automatic multi-well data triming

Automatic removal of first readings Despike, trim, detrend, smooth, cut, merge Multi well automatic removal of first readings

Well Editor & Normalisation Well Editor summarizes several key log values (mean, standart deviation, min, max, …) by zone

Well Editor

Normalisation can be performed using: • Min-Max & Standardisation • Normalisation by modal threshold (based on Multi-Gaussian analysis)

Normalisation characterisation processing

Analysis Geospatial consistency checks to assess wells for leverage: 1D and 2D kriging.

2D Kriging plot of GR_Mean for one specific zone

Instantly create zonal characterising statistics for each curve PQC, Project Quality Control: min, max, mean, std dev, quantiles etc.

Numerous interactive multi-well viewers

Density Cross-plots, Box-Plots, Matrix-Plots, Maps, Layouts,…

2D & 3D tools for Cross-Sections

Quantitative data analyser module held by sophisticated statistical processing

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Automatic cross-section in a 3D view

The smart alternative to conventional log interpretation

Workflow design Design your own petrophysical workflow Save and easily re-apply workflows to new data Easy transfer of workflows to other Projects

Log quality control Detection of pure minerals (coal, halite etc.) Detection of borehole geometry effects (bad hole, oval hole, rugosity, etc…) Flag and/or treat environmental effects (tension pulls, barite, KCl, washouts)

Workflow design and parameterisation

Graphical & interactive parameter selection Multi-well control of petrophysical parameters can be achieved by setting defaults for well/dataset/zone combinations Neutron Pickett Multi-well and multi-zone graphical and tabular densityPlot Plot parameter management gives the users control at all times Interactivity between all views for parameter picking

Plots are dynamically linked to parameter tables for graphical and interactive selection of equation parameter values Edit parameter values and monitor effects on consequent results through cascade function

Petrophysical computations Comprehensive list of petrophysical computations: lithology, porosity, saturation, productivity Define parameter defaults at Project/Well/Zone levels; hierarchical parameter management facilitates scenario comparison Comprehensive user-programming with Python® User may insert scripts into Quanti Workflow for instant multi-well, multi-zone application Monte Carlo uncertainty modelling

Zone Summary Tables User-defined Cut-offs and Output table content Multi-well and multi-zone Summary calculation to different references (MD, TVDSS...)

One-click save of multi-well Output table and direct link to Excel Produce graphical output from Cut-off Sensitivity analysis as a one-click operation

Comprehensive and interactive multi-well interpretation workflow

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Sensitivity of the results for a specific zone (VSH, ! and Sw Cutoff)

The multi-component inversion model offering several numerical techniques

Workflow design Build multi-component model with linear and nonlinear tool response functions Save and easily re-apply models to new data Easily transfer models to other Projects

Solutions Sequential Quadratic Programming: this is a very powerful family of robust, non-linear optimisation methods Tarantola-Valette Direct Inversion: a Bayesian Mineral Set definition solution technique taking account of a priori information to improve the model and characterise uncertainties better in both logs and parameters Markov Chain Monte Carlo simulation: reduces the solution space to a sub-region of maximum likelihood, then samples within the sub-region to characterise the uncertainities

Model design Models may be defined as single mineral sets per zone Multiple mineral sets per zone can also be established with sets switching automatically according to a partitioning curve that changes as the log facies change

Example in Clastics environment

Data partitions are best created by SOM or can be user specified; their role is to characterise the detailed geology more completely and control mineral set switching

User control of tool uncertainties Solutions constrainable against a priori information e.g. XRD data; both single component and multiple component volume constraints are possible Histogram of observed predicted Density data

Histogram-Array plot of component volumes plotted against Gamma Ray curve data

Outputs Unique Array-histograms clarify data relationships by plotting all the components against inpout log data or log data resuiduals

Histogram-Array plot of component volumes plotted against Resistivity curve data

Histogram of observed – predicted Gamma Ray data

View residuals against inputs and results either as histograms or with the unique array-histogram tool.

View and manage uncertainties in complex geological environments

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Detailed automatic Layout Plots, can be fully customised by the user

Objective reconstruction of missing data

Quantitative parameter modelling K.mod is designed to extract essential information from log data in order to: predict non-recorded parameters (!, K, ...), reconstruct missing or poor quality measurements and therefore compensate for bad hole conditions, environmental effects, acquisition problems, etc, bring solutions for scale shift management from core to reservoir scale, potentially reduce the need for coring and plug analysis for the subsequent appraisal wells by comparing well log and core data.

Supervised Neural Networks Parameters can be reconstructed or modelled directly from log data, via an interactive learning process. Multi-Layer Perceptron: a powerful non-linear modelling tool that retains all the original variability in the data.

Back propagation

Error control

Learning phase

Fully quantified uncertainties

Validation curve Learning curve

K.mod is not a "black box" tool: the users keep full control of the input parameters and receive clear feedback on the log quality and model quality, at all times. Uncertainties can be managed: on inputs: back propagation method to check the contribution of each input, on output: self-organized map is categorizing data samples in the training and validation data for their effectiveness in modeling the target data, possibility to weight inputs to force the model to reach extreme values.

Interactive, easy-to-use and very fast It is a straightforward but efficient tool that offers a simple and intuitive interface for an enhanced interpretation and a more accurate reservoir characterization.

Petrophysical parameter modelling: a strategic issue for static model building

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K.mod is based on a complex technology but remains easy-to-use.

The intelligent classifier

Advanced classification techniques Automatic facies identification is playing a key role within the oil and gas E&P industry. Ipsom is a unique classification method that brings added value to interpretation workflows. The 2D indexed and probabilised self-organizing map (Ipsom) is designed for use in : • geological interpretation of well log data and facies prediction • optimal derivation of petrophysical parameters (!, k, hydraulic units...)

Comprehensive statistical tools During the final control and validation phase, results are quantified and refined through an iterative process. High quality statistical and graphic tools with total interactivity and great ease of use, lead to a better understanding of coherence between core description, log responses and consistency on the map.

Accurate model calibration The key to the classification process is calibration. The aim of calibration is to give each neural unit an actual geological meaning: this is known as the indexation phase. Each neural unit is assigned a code that corresponds to a geological interpretation (detailed core description). This stage is essential for a direct interpretation of electrofacies in sedimentological terms.

4. Application of the map. Interactive Lines (pink) elicit the facies correspondence between logs and map. Logs spectral distribution

1. Before classification Random distribution of the n reference node vectors.

2. After classification Rearranged nodes by pattern recognition of log responses irrespective of depth.

3. After indexation Result of Indexation. The colours refer to corebased facies definition assigned to the nodes by virtue of their depths and refined by means of the spectrum. Core Desc.

Core

Benefits Ipsom improves the robustness of the reservoir modelling.

Ipsom allows sharper evaluation of data consistency through interactive management of uncertainties.

Indexed & Probabilised Self-Organizing Map: the most effective tool for facies modelling

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Ipsom provides consistent and meaningful results that are easier and faster to control and interpret.

Import, view and manage from anywhere Import and manage qualitative and quantitative core resources in a robust and secure relational database. Using a standard web browser and an easy-to-use graphical interface, anyone can search, generate inventories, export... any selection of the corporate data.

Accessibility Retrieve core information from anywhere Advanced data query editor Easy-to-use interface Import/Export from/to Excel™ Connection to Techlog©/Malcom©

Flexibility Generic data model using customizable data templates User rights management No installation required

Robustness Based on the strength of eg. Oracle™ Security through user rights

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Data collection is costly - make the most of your data

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The ultimate solution for core data interpretation

Jointly developed by Techsia and Total, Techcore combines the strengths of both contributors; Techsia brought innovative software design and efficient development plus expertise in advanced statistical interpretation methods whilst Total brought to the project more than 15 years of detailed, rigorous knowledge and experience in handling core data. Techcore incorporates robust and validated methods of data manipulation with new, state-of-the-art statistical techniques and provides this powerful combination within a fully interactive graphical user interface.

Storage, processing, integration and interpretation of core data Within an overall integrated reservoir characterization workflow now available with Techsia software, Techcore provides the means to rapidly and effectively synthesize and combine both log and core domains. Techcore© combines robust method of data manipulation with state-of-the-art statistical techniques; it hence constitutes a powerful interpretation package using a fully interactive graphical user interface.

Benefits

Capillary pressure plot

Perform specific processing tasks within one user environment, e.g. calculation of capillary functions (Thomeer, Buckley-Leverett, Lambda, WrightWooddy-Johnson and Hyperbolic Tangent methods), grain size, pore throat distributions, etc.

Pore throat distributions Capillary pressure classification based on Pc curve shape summary parameters

Partition the core data into “hydraulic units” (or “petrophyscial groups”) that reflect zones in which storage and transmissivity of fluids are likely to be similar. Techsia’s extensive experience in techniques of classification, correspondence analysis and exploratory statistical tools such as Principal Components Analysis is applied for this task.

Petrophysical logs: 1D Kriging of plug data: RHOS, PHI & PERM to create continuous upscaled curves along cored intervals

Dedicated module for core data process and interpretation Core-Log Integration in a complete petrophysical platform

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Combine the maximum amount of data available to generate “petrophysical logs”, which are fully representative of the variation in core data upscaled by rigorous methods to be comparable to the scale of the wireline or MWD log data. The upscaling is performed by reference to either continuous core description data (possibly created by picking on core images) or to the most finely resolved quantitative measurements on the core (e.g. mini-K or core-gamma) by 1D Kriging interpolation (several external drifts are possible).

Comprehensive solution for combining petrophysical and geophysical

Specialised Tools available Create a Time to Depth function using one of several techniques based on checkshot and/or sonic log data Automatically convert selected log data to time basis Compute Reflection Coefficients and Impedance curves and convolve with chosen seismic wavelet Apply filters in frequency space to the seismic wavelet and interactively observe impact on calculated synthetic seismogram Apply Gassmann fluid substitution to prepare log data for comparison to seismic data Time to depth conversion table

Z/T computation methods Checkshot only Sonic only Least-squares fit of sonic data on to checkshot data Forced-fit of sonic data on to checkshot data with automatic view of the adjusted sonic curve Drag&drop log data to convert into time based data using an anti-aliasing filter Drag&drop control of data selection; user control of sampling frequency

Create Z/T function

Synthetic Seismogram generation Simply drag&drop time-based log data sampled at the desired frequency into the control window One click to create the RFC, Impedance and synthetic trace Use the graphical wheel control of the frequency domain band filters and immediately view the results of using different filter settings

Synthetics generation and modelling

Gassmann fluid substitution Drag&drop log data into the control window Edit settings manually or using the graphical wheel controls

Gassmann output plot

View and manage uncertainties in complex geological environments

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View pre-formatted output layouts for clear results

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Classification and normalization Hierarchical Clustering: Dendrogram. Find similarities between wells; group wells together; if necessary, align data responses using sophisticated Gaussian analysis, group-by-group amongst wells. Decision tree • powerful classifiers where inputs are mixed and incomplete variables (qualitative and quantitative ). • rank inputs by their information gain. • deduced rules can help to understand the input data regarding the output. Classic and optimized normalization algorithms.

Regressions Linear, non-linear, polynomial and multiple lines algorithms are available. Regression and other fit lines and functions may be created and conditioned on filters, zonation, well-by-well or multi-well. Regression Plots using interactivity with an associated layout

Fit lines may be calculated for user-defined subsets of data using the data selection tools and interactivity between viewers.

Factorial Analysis Principal Component Analysis (PCA) is a useful tool to summarize data, since it separates the dominating features in the data set. Linear Discriminant Analysis (LDA) is used to determine the best projection space to discriminate between two or more naturally occurring groups. It clarifies subsequent Cluster Analyses on users’ data. Multiple Correspondence Analysis (see Ancor tool) compares qualitative variables that may either be of similar type (observed vs predicted curves) or be of dissimilar type (geology vs petrophysics).

Signal Processing Comprehensive suite of tools available for single and multi-well applications: Interpolation: linear, Fast Fourier Transform, Gaussian,... Derivation & Integration Undersampled transformation of ordinal data. Spline & smoothing functions.

Outliers detection. Instant graphical confirmation of results.

A comprehensive suite of conventional statistical tools to help you make sense of large amounts of data very quickly

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