Bed Contained Tectonic Fold-Related Fractures

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Bed Contained Tectonic Fold-Related Fractures
Flank of Teton Anticline Sawtooth Mnts. W.
Montana Miss. Madison Ls
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Reservoir Simulation

• Integration of multidisciplinary data
• Up-scaling of observational data
• Numerically grow fracture networks that aptly
  represent the real fracture networks and their
  distributions
• Stress state perturbations due to production

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Nelson
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Total Integration Includes

• Fracture system characterization
• Stratigraphic interpretation modeling
• Structural geology
• Petrophysics
• Seismic mapping attribute analysis
• Well testing, inc. production logs
• Production history matching
• Reservoir engineering, inc. dual porosity flow
  behavior
• Fracture scaling and reservoir simulation
• Drilling and completion technology

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Permeability Reduction Due to Stress, Opon
Field, Colombia
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A 3DMOVE Fracture Generator Model
Courtesy of K. Rawnsley
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Conceptual Models Real Fractures
Nelson (1985)
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Reservoir Property Models
Generalized
Fractures Crossbedding
Nelson (1985)
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Perm. Anisotropy Brick Model
Nelson (1985)
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Porosity vs. Permeability (All Non-Induced Nugget
Ss Fractures)
Poor Correlation
51
31
Ryckman Creek WI 6
Nelson (1985)
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Porosity vs. Permeability
(Sample Type 7 Blt20, NF)
Better Correlation
62
66
Ryckman Creek WI 6
Nelson (1985)
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Sugar Cube Approach to Modeling Fractures
Nelson (1985)
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Multi-Scale Fractures in Carbonate
2 ft
Nelson (1985)
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Multi-Scale Tectonic Fracture Development in
Ss Sheep Mnt. Anticline, Big Horn Basin, Wyoming
10 ft
1 ft
Nelson (1987b)
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Concept of Natural Fracture Scaling
Nelson (1987b)
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Modified Sugar Cube Modeling
Courtesy of SPE
Nelson (1985)
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Smaller Scale Fractures Modeled as Continuum
Nelson (1985)
Courtesy of SPE
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Smaller Scale Fractures Modeled as Continuum
Nelson (1985)
Courtesy of SPE