Terra Station II Overview TERRASCIENCES Major capabilities include

Terra. Station II Overview TERRASCIENCES

Major capabilities include. . . • Data Loading and Data Quality Control • Petrophysical Analysis • Borehole image processing & interpretation • Cross section building • Contouring and Surface Analysis • Composite Well Displays • Dip Analysis • Geochemical Analysis • Fault Seal Analysis TERRASCIENCES

Potential users include. . . • Technicians • Petrophysicists • Geologists • Reservoir Engineers • Sedimentologists • Structural Geologists TERRASCIENCES

Data that can be utilized • Curve Data - single and array curves • Core Analysis Data - at true depth locations • Directional surveys • Well locations (in almost any coordinate system) • Structures, markers and other mappable data • Production data • Geopolitical data - DLG, CDF, SHAPE, and others • Dip/Azimuth pairs - picks from image data. TERRASCIENCES • Lithology and facies information • Logging run parameters • Geological zone parameters • Stratigraphic column information • Borehole imagery - FMI, UBI, etc • Sonic Waveform data • Core and other photographs • Raster log data • Comment text and other annotation • Well completion information DST, PERFs, etc

Computer requirements Terra. Station II runs on any hardware capable of running any of the following Windows operating systems - Windows 98, NT, 2000, XP, and Vista. For a more optimal experience, we recommend at least 1 Gigabyte of RAM (2 Gigabytes if using Vista), dual screens, fast disk controller with a large capacity disk. TERRASCIENCES

Software licensing Standalone and network installations are available. Software licensing is controlled by a license file. A separate network license server is supported if desired. There is an option to use a “USB dongle”. There is a small additional charge for this. Dongle systems cannot be used with network licenses. TERRASCIENCES

Project Database Each project can have. . . Up to 10, 000 wells Each well can have up to 2, 100 curves - no depth restriction on data Mixed depth units and other curve units are allowed Both regular and irregular sampled data supported Up to 99 maps per project Each map contains over 1 million data points Each map can have 2, 048 variables (structures, thicknesses, etc) Multiple or single user project access TERRASCIENCES

Curve properties TERRASCIENCES

Worldwide Coordinate System Support Over 40 spheroids to choose from, including GRS 80/NAD 83/GDA 84, WGS 1980, 1984, Clark 1866, ED 50, International 1924 and many others. Projection options including UTM, Southern UTM, Lambert State Plane, and a large list of location specific projections. TERRASCIENCES

Incoming Data Formats • LAS, LIS, DLIS, ASCII • IES, BIT • geo. SCOUT, Log. Sleuth • TIFF, JPEG, BMP • Keyboard Entry • via Windows Clipboard • Open. Spirit(TM) TERRASCIENCES

Batch loading of data • LAS, IES, and ASCII well data • Directional surveys • Matches on well name and/or UWI TERRASCIENCES

Curve data utilities General: Arithmetic operations: Rescale a curve Several fixed generic equations Interpolate - arithmetic, geometric, harmonic mean, block up or down, block average. User definable equations Limit (clip data extremes) Sort up or down (carry a second curve) Filters: Merge curves Median Convert a series of curves to an array Despike Random number curve TERRASCIENCES Moving average - up to 1, 000 elements User defined - up to 1, 000 elements

Curve utilities - splicing Splice up to 10 curves TERRASCIENCES

IMAGELog Composite well displays TERRASCIENCES

IMAGELog Interactively build any number of templates. Templates can apply to any well in any project. Use templates in cross sections. Over 30 track types to choose from. Interactively depth shift, edit, and base line shift on the displays. Interactively perform lithology and facies interpretation, add comments, and more. Complete vertical scale control. Create and append headers and footers. TERRASCIENCES

Directional surveys Single or multi well survey loading 5 different computation methods Allow use of tie-in point 2 D and 3 D views of borehole trace Options for TVT and TST TERRASCIENCES

Petrophysics - Corrections Borehole environmental corrections, matrix conversion, and tornado charts for most major logging companies. Schlumberger Western Atlas Halliburton/Welex Gearhart Antares Reeves Wireline Digital Logging TERRASCIENCES

Petrophysics - Normalizing Define reference histogram using any number of wells in the project Interactively pick the offset and multiplier values TERRASCIENCES

Petrophysics - Crossplots Generic plots of any curves • Specialized plots include: • Pickett plot • Hingle plot • Thomas-Stieber plot • Pressure/Depth plots with gradient analysis • SP-Rwa • LDT plot • MID plot • MNP plots • Predefined plot sequences Interactively highlight areas on plots for identification. Fit statistical lines and other capabilities. TERRASCIENCES

Petrophysics - Histograms TERRASCIENCES

Petrophysics - Ternary diagram TERRASCIENCES

Petrophysics - Quicklook TERRASCIENCES

Petrophysics - Vshale models Compare several models side by side. Build a composite output curve from the models selected - min, max, average TERRASCIENCES

Petrophysics - Porosity Models Compare several models side by side. Option to correct for shale. Build a composite output curve from the models selected - min, max, average TERRASCIENCES

Petrophysics - Sw Models Compare several models side by side. Build a composite output curve from the models selected - min, max, average TERRASCIENCES

Petrophysics - Netpay Reports A variety of report types available Output in EXCEL compatible CSV format Sensitivity analysis Detailed report summations and depth listing Measured depth and TVD based Multi zone, multi well capabilities Graphical display showing changes in netpay thickness with varying cutoff value Probabilistic netpay utilizing Monte Carlo simulation TERRASCIENCES

Petrophysics - Netpay Reports Just a couple of examples …. TERRASCIENCES

Petrophysics - Netpay Reports Graph changes in pay as a variable changes TERRASCIENCES

Petrophysics - Netpay Reports Probabilistic netpay summary report example. TERRASCIENCES

Petrophysics - Netpay Reports Probabilistic netpay histogram displays. TERRASCIENCES

Petrophysics - Lithology analysis Lithology modeling using algebraic mixing techniques. TERRASCIENCES

Petrophysics - Lithology analysis Lithology and fluid modeling using probabilistic techniques. Uncertainty control by interval is available. TERRASCIENCES

Petrophysics - advanced statistics Available options include: • Fourier Analysis (frequency spectrum analysis) • Discriminant function analysis • Cluster analysis • Transition Probability computations • Cospectral analysis • Multiple linear regression • Principal component analysis TERRASCIENCES

TCL - User Programming Completely self contained programming language. No need for compilers or third party software. Large selection of commands and functions. Unlimited length of routines. Run in batch mode or on a single well. Use for data QC, manipulation, computations, custom reporting, and much more. TERRASCIENCES

Cross Sections TERRASCIENCES

Cross Sections Add faults Add pinchouts Modify the picks between the wells TERRASCIENCES

Cross Sections - deviated wells TERRASCIENCES

Borehole imaging • Supports all resistivity and sonic imagers. • Support LWD images. • Supports ARI and AND type images. • QC plots of input data. • User defined processing options. • Color maps are easily changed to suit needs. • Incorporate image display with all other down hole data displays • Define your own pick category schemes. • Access a wide array of dip display track types, and analysis options. • Includes a sand count capability. TERRASCIENCES

Borehole imaging - SHDT TERRASCIENCES

Borehole imaging - sonic image TERRASCIENCES

Dip Analysis Stereonet based dip analysis Rose and strike diagram option Contoured stereonets Cumulative dip plots Azimuth vector plots Statistical report by dip category TERRASCIENCES

Dip Analysis - Azimuth Vector Plot TERRASCIENCES

Dip Analysis - Cumulative Dip TERRASCIENCES

Mapping - Bubble maps TERRASCIENCES

Mapping - Contour maps TERRASCIENCES

Mapping - Surface displays TERRASCIENCES

Mapping - Surface analysis Histograms Crossplots Q-Q and P-P plots normal and log probability plots Kriging and variograms TERRASCIENCES

Mapping - Other data Can be used to map any numerical data, not just well related Example of a gravity anaomaly map from Ohio with location of readings displayed as green crosses TERRASCIENCES

Sonic Waveform TERRASCIENCES

Sonic Waveform Display instantaneous phase, amplitude, frequency. Supports monopole and dipole tools. Frequency dispersion filter available. Compute Compressional, Shear, and Stonely arrivals Semblance processing TERRASCIENCES

Synthetic seismogram Includes checkshot correction A selection of wavelets Export to SEG-Y Computed one way and two way times for use in sections or well displays. TERRASCIENCES

Reservoir engineering Dykstra Parsons plots Single or multiple well TERRASCIENCES

Reservoir engineering Lorenz plots Standard or stratigraphically modified Single or multiple well TERRASCIENCES

Graphical output formats Graphical output from Terra. Station can be created in a number of formats: • TERRASCIENCES binary format (. PLT) • CGM (read by Zeh, Larson, and SDI among others) • Adobe PDF (can be viewed by Acrobat) • Adobe Postscript (read by Corel and others) • EMF - Enhanced Meta File (read by Power. Point, Excel, etc) • JPEG • BMP • TIFF • HPGL/2 TERRASCIENCES

Plot Editor and Montager TERRASCIENCES

In conclusion. . . • Highly integrated well and geological data. • Rapid manipulation of any number of wells and curves. • Extremely competitively priced. • Modular product - license only what you need. • Software can be purchased or rented to suite your budgetary requirements. • International support offices. • Excellent reputation for customer support. TERRASCIENCES

Thank you for your time To learn more or to request a demo CD contact TERRASCIENCES at: Web site: www. terrasciences. com In the Americas, Australia, and Far East. . . Email: sales@terrasciences. com In Europe, Africa, India and the Middle East Email: sales@terrasciences. co. uk Full contact information on next slide TERRASCIENCES

Full contact information TERRASCIENCES, Inc 7800 South Elati Street Suite 300 Littleton CO 80120 USA Tel: (303) 794 5511 Fax: (303) 794 7755 TERRASCIENCES, Ltd Palace Chambers 41 London Road Stroud, Glos. GL 5 2 AJ UK Tel: (01453) 767683 Intl tel: +44 (1453) 767683 Please check www. terrasciences. com for current contact information TERRASCIENCES