Fracture Porosity From Pressure Transient Data

The storage capacity ratio (ω) measures the flow<br>capacitance of the secondary porosity and the interporosity<br>flow parameter (λ) is related to the heterogeneity scale of the<br>system. Currently, both parameters λ and ω are obtained from<br>well test data by using the conventional semilog analysis,<br>type-curve matching or the TDS Technique. Warren and Root<br>showed how the parameter ω can be obtained from semilog<br>plots. However, no accurate equation is proposed in the<br>literature for calculating fracture porosity.