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ISATIS reference software for Oil & Gas Geostatistics by Geovariances

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ISATIS, Geovariances leading-edge geostatistical software solution used by +3500 people over the world, helps the Oil & Gas industry generates more quantitatively reliable reservoir models.
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ISATIS reference software for Oil & Gas Geostatistics by Geovariances

  1. 1. Isatis fills the gap Get higher-resolution models and improve the understanding of reservoir geology with Isatis
  2. 2. Isatis complements your geomodeler Powerful geostatistical package with leading algorithms: l Improves reservoir model resolution and reliability l Improves reservoir geology understanding l Helps in taking back control of reserves 2
  3. 3. • Data QC • Spatial analysis • Facies & petrophysics modeling • Uncertainty quantification • Data QC • Spatial analysis • Seismic filtering • Time-to-depth- conversion Isatis complements your geomodeler Adds flexibility, control and accuracy where geostatistics applies 3 Petrel, Gocad, RML, RMS etc. Drilling Geology Reservoir Engineering Geophysics
  4. 4. Isatis complements your geomodeler 4 Isatis 2011
  5. 5. Isatis facilitates data exchange l Direct links with Gocad®, Petrel®, RML®, RMS®, Decision Space® Earth Modeling Software (to come) l Import/export interfaces with standard packages and formats (Autocad DXF, CMG, Excel, Gslib, Eclipse, Irap, LAS, ODBC, SEG-Y, VIP, Z-Map Plus, etc.) 5
  6. 6. Isatis facilitates data exchange 6 Isatis import/export plugins in Petrel
  7. 7. Isatis, geostatistics-dedicated software l Exclusive range of statistical and geostatistical tools l 3D multivariate state-of-the art kriging and stochastic simulation algorithms l Advanced variography -> superior data spatial variability modeling l Powerful neighborhood definition -> maximize data use and efficiency in kriging and simulation algorithms l Mathematically sound algorithms 7
  8. 8. Isatis, geostatistics-dedicated software Provides unique functionalities best suited to uncertainty analysis for: l Data quality control and spatial analysis l Noise filtering in velocity volumes l Stochastic depth conversion l Facies modeling l Petrophysical property modeling l Volume estimation 8
  9. 9. Data quality control Powerful Exploratory Data Analysis with dynamic linked graphics l Detect and handle data anomalies and anisotropies l Reveal the correlations between seismic attributes and wells data l Identify homogeneous areas l Characterize variable spatial behavior -> Gain confidence in data 9
  10. 10. Data spatial analysis Variogram modeling at the highest quality level l Interactive or automatic variogram fitting l Unique choice of structures l Nested structure variograms l True multivariate and multi- directional variograms -> Fully capture property spatial behavior 10
  11. 11. Data spatial analysis Local geostatistics -> Local optimisation of variogram models parameters: l Better adequacy between data and model l More precise and realistic models l Better uncertainty assessment l Ideal for complex structural environment -> Gain precision in reservoir model 11 Seismic attribute Seismic attribute Local variograms Local variograms
  12. 12. Isatis, geostatistics-dedicated software Provides unique functionalities best suited to uncertainty analysis for: l Data quality control and spatial analysis l Noise filtering in velocity volumes l Stochastic depth conversion l Facies modeling l Petrophysical property modeling l Risk analysis and volume estimation 12
  13. 13. Noise filtering in seismic volumes l Removes structured artifacts (acquisition, picking) or white noise l Extracts the relevant geological information l Preserves the seismic resolution l Based on Factorial Kriging -> Get clean and reliable velocity volumes 13
  14. 14. Isatis, geostatistics-dedicated software Provides unique functionalities best suited to uncertainty analysis for: l Data quality control and spatial analysis l Noise filtering in velocity volumes l Stochastic depth conversion l Facies modeling l Petrophysical property modeling l Risk analysis and volume estimation 14
  15. 15. Stochastic depth conversion Fast alternative to classical depth conversion methods l Reproduces trends l Optimal integration of wells and seismic data l Uncertainty quantification l Fast and easy to use 15
  16. 16. Isatis, geostatistics-dedicated software Provides unique functionalities best suited to uncertainty analysis for: l Data quality control and spatial analysis l Noise filtering in velocity volumes l Stochastic depth conversion l Facies modeling l Petrophysical property modeling l Risk analysis and volume estimation 16
  17. 17. Facies modeling with PGS 17 Plurigaussian simulations (PGS) l Fully consistent underlying geostatistical model l Proper modeling of facies transitions l Reproduces facies proportions l Handles non stationarity -> Fully captures the reservoir depositional system details
  18. 18. Facies modeling with PGS Plurigaussian simulations (PGS) -> reconciles pixel based method and complex environement - More realistic reservoir images than with SIS - Fast and sound algorithm - Proven technique which has been used for more than 15 years 18 SIS PGS
  19. 19. Facies modeling with MPS Multiple-points statistics (MPS) l Integration of facies local proportions and seismic attributes for refined models l Capture small and large scale structures l Full control of parameters l Fast and low memory consuming algorithm -> Efficiently tackles any complex geological environment 19
  20. 20. Isatis, geostatistics-dedicated software Provides unique functionalities best suited to uncertainty analysis for: l Data quality control and spatial analysis l Noise filtering in velocity volumes l Stochastic depth conversion l Facies modeling l Petrophysical property modeling l Risk analysis and volume estimation 20
  21. 21. Petrophysical property modeling Advanced kriging algorithms l Handles non-stationarity l Handles cases with heterogeneous sparse data (neighborhood) l Integrates seismic / facies data -> Properly distribute petrophysical properties over the model 21 Property mapping driven by the geology
  22. 22. Property uncertainty quantification Stochastic simulations based on exclusive turning bands method l Fast and sound algorithm l Reproduces statistics l Handles non stationarity l Handles cases with heterogeneous sparse data (neighborhood) l Non dependent from random path 22
  23. 23. Isatis, geostatistics-dedicated software Provides unique functionalities best suited to uncertainty analysis for: l Data quality control and spatial analysis l Noise filtering in velocity volumes l Stochastic depth conversion l Facies modeling l Petrophysical property modeling l Risk analysis and volume estimation 23
  24. 24. Risk analysis State-of-the-art simulation post- processing functionalities - Maps of local statistics over multiple realizations (statistical maps, local probability of exceeding a value, local PDF, quantiles, etc.) - Checks simulations quality through multiple variograms -> improves risk and uncertainty management 24
  25. 25. Volume estimation (Volumetrics) l Flexible combinations of multiple realizations of the reservoir geometry and properties - Statistics, quantile and probability maps of the thickness reservoir - Risk curves on GRV, HCPV, IGIP, STOIIP, HIIP l Test simulations consistency with spill point application -> Improved support for E&P decision making 25
  26. 26. Conclusion Isatis adds value to your geomodeler
  27. 27. Isatis adds value to your geomodeler l Gain in geology understanding thanks to refined lithotype proportion maps l Gain precision in your facies models taking seismic trend and facies relationship into account l Gain reliability in petrophysical property models through the optimized integration of all available data 27
  28. 28. Isatis adds value to your geomodeler Take back control of your reserves l Workflow free -> greater flexibility and superior adaptability to specific issues/reservoirs l Full control of parameters which can be finely tuned according to your experience and reservoir knowledge 28
  29. 29. Expert services l Isatis guarantees technical support provided by expert in geostatistics l Related services provided: training, mentoring, consulting 29
  30. 30. To go further … l Feel free to ask for demos/presentations on: - What’s new in Isatis 2012 - Local Geostatistics - Geostatistical Seismic Filtering - Geostatistical Time-to-depth Conversion - Plurigaussian Simulations - Multiple-point Statistics Simulations - Flumy Thank you! 30
  31. 31. Thank you for your attention For more information: Jean-Paul ROUX – Sales Manager jproux@geovariances.com www.geovariances.com

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