Mark McClure

DFIT Interpretation

3:29 Hours
Diagnostic Fracture Injection Tests (DFITs) are used to estimate stress, pore pressure, and permeability. The term “DFIT” is often used broadly to refer to any injection/shut-in test designed to create a hydraulic fracture. However, it usually refers to a test performed in a low permeability formation.

1.01 Course Outline – What is a DFIT? (16 min.)  Sample Lesson
1.02 Hydraulic Fracturing for Stress Estimation (17 min.)
1.03 Permeability, Pore Pressure & Plotting Data (17 min.)

2.01 Wellbore Storage & Near-wellbore Tortuosity (14 min.)
2.02 Nolte (1979) Concept (20 min.)
2.03 Joint Closure & Nonlinear Stiffness (18 min.)

3.01 Example DFITs (19 min.)
3.02 EGS Colab Project Example (14 min.)

4.01 Pore Pressure Estimation (17 min.)
4.02 Practicality – Worked Examples (18 min.)
4.03 Relative Stiffness & Permeability Estimates (19 min.)

5.01 Practical Tips (14 min.)

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