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Uniformly-Fractured Aquifers

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Uniformly-Fractured Aquifers

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  1. Uniformly-Fractured Aquifers By: Tripp Winters

  2. Introduction

  3. Introduction • Double-Porosity Theory (Barenblaa et al. 1960) • 2 Media • The fractures • The matrix blocks • Matrix=primary porosity in the and low permeability • Fractures= low storage capacity and high permeability

  4. Introduction No variation in head within the matrix blocks is assumed This so called interporosity flow is in pseudo-steady state The flow through the fractures to the well is radial and in an unsteady states.

  5. Assumptions

  6. Bourdet-Gringarten’s Curve Fitting Method

  7. Bourdet-Gringarten’s Curve Fitting Method

  8. Bourdet-Gringarten’s Curve Fitting Method Slide

  9. Additional Assumptions

  10. Bourdet-Gringarten’s Curve Fitting Method Slide

  11. Kazemi et al.’s Straight-Line Method (Observation Wells)

  12. Kazemi et al.’s Straight-Line Method (Observation Wells)

  13. Kazemi et al.’s Straight-Line Method (Observation Wells)

  14. Kazemi et al.’s Straight-Line Method (Observation Wells)

  15. Warren-Root’s Straight-Line Method (Pumped Well)

  16. Warren-Root’s Straight-Line Method (Pumped Well)

  17. Warren-Root’s Straight-Line Method (Pumped Well)