Summary A formulation for pressure transients in terms of the intrinsic, or core, properties of the two media that compose the fractured reservoir establishes the influence of these properties on—and their corroboration from—the pressure/time relationship observed in well and interference tests. The influence of the following reservoir characteristics are analyzed: the area of fractures transverse to flow; the dimensions, shape, and properties of rectangular parallelepiped matrix-rock blocks; and permeability reduction in the block surfaces. A restatement of the so-called quasisteady-state intermedia flow provides Warren and Root's α and λ parameters with the physical meaning they lacked and allows direct determination of the blocks' minimum dimensions.
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Abraham de Swaan (1990) studied this question.
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