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Fracture Research and Application Consortium Selected Overview Slides 2005 http://www.beg.utexas.edu/indassoc/fraccity/

Fracture Research and Application Consortium Selected Overview Slides 2005 http://www.beg.utexas.edu/indassoc/fraccity/public/recntevnt.htm Austin Texas. Agenda. Introduction Models to Flow Simulation Introduction to Characterization Methods Discussion.

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Fracture Research and Application Consortium Selected Overview Slides 2005 http://www.beg.utexas.edu/indassoc/fraccity/

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  1. Fracture Research and Application Consortium Selected Overview Slides 2005 http://www.beg.utexas.edu/indassoc/fraccity/public/recntevnt.htm Austin Texas

  2. Agenda • Introduction • Models to Flow Simulation • Introduction to Characterization Methods • Discussion Fracture Research & Application Consortium

  3. FRAC GoalsFracture Research and Application Consortium • Verifiable conceptual fracture models • Accurate pre-drill predictions • High-resolution, site-specific evaluation • Proven economic impact • Exploration: risk assessment • Production: reservoir simulation Fracture Research & Application Consortium

  4. Benefits of Membership I • Opportunities for collaborative projects • Case studies • Fracture Research & Application Consortium • We are committed to developing useful tools • Accessible, proven value, unique • Access to cutting-edge research as it happens • Website & FTP site, software Fracture Research & Application Consortium

  5. FRAC Website private sidehttp://www.beg.utexas.edu/indassoc/fraccity/index.htm Username: DevonEnergy Password: FracIA16 Note these are case sensitive Fracture Research & Application Consortium

  6. Shared Case Study Data Fracture Research & Application Consortium

  7. Reports, manuscripts, abstracts Fracture Research & Application Consortium

  8. Glossary Fracture Research & Application Consortium

  9. Application Fracture Research & Application Consortium

  10. Benefits of Membership II • Annual research meeting & field trips • Company office visits & short courses • Company staff training in Austin • Longstanding committed membership • Leveraged research • DOE, NSF • Jackson School Geology Foundation Fracture Research & Application Consortium

  11. Members 2005 Fracture Research & Application Consortium Huber IMP Shell International E & P Anadarko Petroleum & Geosystems Engineering – Geological Sciences – Bureau of Economic Geology The University of Texas at Austin Fracture Research & Application Consortium

  12. UT Researchers Associated with FRAC Geocosm Geocosm UTIG Lake Olson Marrett Lander Bonnell Sen Gale Reed Laubach Milliken Srinivasan Holder Fomel Petroleum & Geosystems Engineering – Geological Sciences – Bureau of Economic Geology The University of Texas at Austin Fracture Research & Application Consortium

  13. Why a new approach is needed Fracture prediction & evaluation • Inherent sampling limitations • Unconstrained models • Predictions difficult to verify • Predictions do not extend to key attributes • Intensity, Clustering, Are the fractures open? • Predrill and interwellbore extrapolation • Unacceptable uncertainties Fracture Research & Application Consortium

  14. Challenges Fracture Prediction & Evaluation • Unconstrained models • Equifinality • Predictions difficult to verify Fracture Research & Application Consortium

  15. Example of difficult-to-measure attribute Open Fracture Length Distribution Frontier Formation, Wyoming Challenges Fracture Prediction & Evaluation • Inherent sampling limitations Hypothetical well bore

  16. FRAC Approach • Exploit links between chemical, mechanical processes • More accurate predictive models • Measure attributes not otherwise obtainable • Quantitative, site-specific, low-cost data not limited by conventional sampling problems • Map attributes; calibrate seismic data; incorporate results in simulators Fracture Research & Application Consortium

  17. Research Approaches Fracture Research & Application Consortium

  18. . Production: Exploration: Reservoir Risk Simulation Assessment Conceptual Approach of FRAC Microstructure Structural surrogates Reservoir quality (Laubach) Quantitative Structure Geomechanics Diagenesis Linked Models Geomechanics (Olson) Scaling (Marrett) Predict Attributes of Large Fractures and Fracture Arrays Quality, Orientations, Timing, Apertures, Lengths, Spacings, Geometry Fracture Research & Application Consortium

  19. Fractures Across a Range of ScalesFRAC Research Covers this Scale Range Outcrop Logs Thin section SEM Seismic Core dm m cms mm < mm 0.5 mm ms Fracture Research & Application Consortium

  20. Predictions of Fracture ClusteringThree maps of fracture trace patterns • low n, spacing < bed thickness, early subcritical growth • high n, widely spaced clusters, late critical growth Arrow indicates bed thickness for these models Note changes in degree of fracture clustering n=5 n=20 n=80 Fracture Research & Application Consortium n is subcritical index (n) a rock property that can be used to predict network geometry

  21. Case Studies • Key element of FRAC • Objectives • Advance research • Transfer technology • New structure starting in 2005 • Aim: Service to Members • Structure under development • Made possible in part by JSG initiative grant Fracture Research & Application Consortium

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